int
CentralDifferenceAlternative::newStep(double _deltaT)
{
updateCount = 0;
deltaT = _deltaT;
if (deltaT <= 0.0) {
opserr << "CentralDifference::newStep() - error in variable\n";
opserr << "dT = " << deltaT << endln;
return -2;
}
AnalysisModel *theModel = this->getAnalysisModel();
double time = theModel->getCurrentDomainTime();
theModel->applyLoadDomain(time);
return 0;
}
int AlphaOS::commit(void)
{
AnalysisModel *theModel = this->getAnalysisModel();
if (theModel == 0) {
opserr << "WARNING AlphaOS::commit() - no AnalysisModel set\n";
return -1;
}
// set the time to be t+deltaT
double time = theModel->getCurrentDomainTime();
time += (1.0-alpha)*deltaT;
theModel->setCurrentDomainTime(time);
// update the displacements in the elements
if (updElemDisp == true)
theModel->updateDomain();
return theModel->commitDomain();
}
int
CentralDifferenceAlternative::commit(void)
{
AnalysisModel *theModel = this->getAnalysisModel();
if (theModel == 0) {
opserr << "WARNING CentralDifferenceAlternative::commit() - no AnalysisModel set\n";
return -1;
}
*Ut = *Utp1;
// update time in Domain to T + deltaT & commit the domain
double time = theModel->getCurrentDomainTime() + deltaT;
theModel->setCurrentDomainTime(time);
return theModel->commitDomain();
return 0;
}
int
TransientIntegrator::formTangent(int statFlag)
{
int result = 0;
statusFlag = statFlag;
LinearSOE *theLinSOE = this->getLinearSOE();
AnalysisModel *theModel = this->getAnalysisModel();
if (theLinSOE == 0 || theModel == 0) {
opserr << "WARNING TransientIntegrator::formTangent() ";
opserr << "no LinearSOE or AnalysisModel has been set\n";
return -1;
}
// the loops to form and add the tangents are broken into two for
// efficiency when performing parallel computations
theLinSOE->zeroA();
// loop through the DOF_Groups and add the unbalance
DOF_GrpIter &theDOFs = theModel->getDOFs();
DOF_Group *dofPtr;
while ((dofPtr = theDOFs()) != 0) {
if (theLinSOE->addA(dofPtr->getTangent(this),dofPtr->getID()) <0) {
opserr << "TransientIntegrator::formTangent() - failed to addA:dof\n";
result = -1;
}
}
// loop through the FE_Elements getting them to add the tangent
FE_EleIter &theEles2 = theModel->getFEs();
FE_Element *elePtr;
while((elePtr = theEles2()) != 0) {
if (theLinSOE->addA(elePtr->getTangent(this),elePtr->getID()) < 0) {
opserr << "TransientIntegrator::formTangent() - failed to addA:ele\n";
result = -2;
}
}
return result;
}
int TRBDF2::update(const Vector &deltaU)
{
AnalysisModel *theModel = this->getAnalysisModel();
if (theModel == 0) {
opserr << "WARNING TRBDF2::update() - no AnalysisModel set\n";
return -1;
}
// check domainChanged() has been called, i.e. Ut will not be zero
if (Ut == 0) {
opserr << "WARNING TRBDF2::update() - domainChange() failed or not called\n";
return -2;
}
// check deltaU is of correct size
if (deltaU.Size() != U->Size()) {
opserr << "WARNING TRBDF2::update() - Vectors of incompatible size ";
opserr << " expecting " << U->Size() << " obtained " << deltaU.Size() << endln;
return -3;
}
// determine the response at t+deltaT
if (step == 0) {
(*U) += deltaU;
Udot->addVector(1.0, deltaU, c2);
Udotdot->addVector(1.0, deltaU, c3);
} else {
(*U) += deltaU;
Udot->addVector(1.0, deltaU, c2);
Udotdot->addVector(1.0, deltaU, c3);
}
// update the response at the DOFs
theModel->setResponse(*U,*Udot,*Udotdot);
if (theModel->updateDomain() < 0) {
opserr << "TRBDF2::update() - failed to update the domain\n";
return -4;
}
return 0;
}
int PFEMIntegrator::newStep(double deltaT)
{
if (deltaT <= 0.0) {
opserr << "PFEMIntegrator::newStep() - error in variable\n";
opserr << "dT = " << deltaT << endln;
return -2;
}
// get a pointer to the AnalysisModel and Domain
AnalysisModel *theModel = this->getAnalysisModel();
if(theModel == 0) {
opserr << "Analysis model has not been linked - PFEMIntegrator::newStep()\n";
return -1;
}
Domain* theDomain = theModel->getDomainPtr();
if(theDomain == 0) {
opserr<<"WARNING: no domain is set for the model";
opserr<<" -- PFEMIntegrator::newStep()\n";
return -1;
}
// set the constants
c1 = deltaT;
c2 = 1.0;
c3 = 1.0/deltaT;
c4 = deltaT*deltaT;
c5 = deltaT;
c6 = 1.0;
// check if domainchange() is called
if (U == 0) {
opserr << "PFEMIntegrator::newStep() - domainChange() failed or hasn't been called\n";
return -3;
}
// set response at t to be that at t+deltaT of previous step
(*Ut) = *U;
(*Utdot) = *Udot;
(*Utdotdot) = *Udotdot;
// determinte new disps and accels
U->addVector(1.0, *Utdot, deltaT);
Udotdot->Zero();
// set states
theModel->setDisp(*U);
theModel->setAccel(*Udotdot);
// increment the time to t+deltaT and apply the load
double time = theModel->getCurrentDomainTime();
time += deltaT;
if (theModel->updateDomain(time, deltaT) < 0) {
opserr << "PFEMIntegrator::newStep() - failed to update the domain\n";
return -4;
}
return 0;
}
int CollocationHSIncrReduct::update(const Vector &deltaU)
{
AnalysisModel *theModel = this->getAnalysisModel();
if (theModel == 0) {
opserr << "WARNING CollocationHSIncrReduct::update() - no AnalysisModel set\n";
return -1;
}
// check domainChanged() has been called, i.e. Ut will not be zero
if (Ut == 0) {
opserr << "WARNING CollocationHSIncrReduct::update() - domainChange() failed or not called\n";
return -2;
}
// check deltaU is of correct size
if (deltaU.Size() != U->Size()) {
opserr << "WARNING CollocationHSIncrReduct::update() - Vectors of incompatible size ";
opserr << " expecting " << U->Size() << " obtained " << deltaU.Size() << endln;
return -3;
}
// get scaled increment
(*scaledDeltaU) = reduct*deltaU;
// determine the response at t+theta*deltaT
U->addVector(1.0, *scaledDeltaU, c1);
Udot->addVector(1.0, *scaledDeltaU, c2);
Udotdot->addVector(1.0, *scaledDeltaU, c3);
// update the response at the DOFs
theModel->setResponse(*U, *Udot, *Udotdot);
if (theModel->updateDomain() < 0) {
opserr << "CollocationHSIncrReduct::update() - failed to update the domain\n";
return -4;
}
return 0;
}
int NewmarkHSFixedNumIter::commit(void)
{
AnalysisModel *theModel = this->getAnalysisModel();
if (theModel == 0) {
opserr << "WARNING NewmarkHSFixedNumIter::commit() - no AnalysisModel set\n";
return -1;
}
LinearSOE *theSOE = this->getLinearSOE();
if (theSOE == 0) {
opserr << "WARNING NewmarkHSFixedNumIter::commit() - no LinearSOE set\n";
return -2;
}
if (this->formTangent(statusFlag) < 0) {
opserr << "WARNING NewmarkHSFixedNumIter::commit() - "
<< "the Integrator failed in formTangent()\n";
return -3;
}
if (theSOE->solve() < 0) {
opserr << "WARNING NewmarkHSFixedNumIter::commit() - "
<< "the LinearSysOfEqn failed in solve()\n";
return -4;
}
const Vector &deltaU = theSOE->getX();
// determine the response at t+deltaT
U->addVector(1.0, deltaU, c1);
Udot->addVector(1.0, deltaU, c2);
Udotdot->addVector(1.0, deltaU, c3);
// update the response at the DOFs
theModel->setResponse(*U,*Udot,*Udotdot);
return theModel->commitDomain();
}
int XC::Collocation::commit(void)
{
AnalysisModel *theModel = this->getAnalysisModelPtr();
if (theModel == 0) {
std::cerr << "WARNING XC::Collocation::commit() - no XC::AnalysisModel set\n";
return -1;
}
// determine response quantities at t+deltaT
U.getDotDot().addVector(1.0/theta, Ut.getDotDot(), (theta-1.0)/theta);
(U.getDot()) = Ut.getDot();
double a1 = deltaT*(1.0 - gamma);
double a2 = deltaT*gamma;
U.getDot().addVector(1.0, Ut.getDotDot(), a1);
U.getDot().addVector(1.0, U.getDotDot(), a2);
U.get()= Ut.get();
U.get().addVector(1.0, Ut.getDot(), deltaT);
double a3 = deltaT*deltaT*(0.5 - beta);
double a4 = deltaT*deltaT*beta;
U.get().addVector(1.0, Ut.getDotDot(), a3);
U.get().addVector(1.0, U.getDotDot(), a4);
// update the response at the DOFs
theModel->setResponse(U.get(),U.getDot(),U.getDotDot());
// if (theModel->updateDomain() < 0) {
// std::cerr << "XC::Collocation::commit() - failed to update the domain\n";
// return -4;
// }
// set the time to be t+delta t
double time= getCurrentModelTime();
time += (1.0-theta)*deltaT;
setCurrentModelTime(time);
return commitModel();
}
int XC::HHTHybridSimulation::commit(void)
{
AnalysisModel *theModel = this->getAnalysisModelPtr();
if(theModel == 0)
{
std::cerr << "WARNING XC::HHTHybridSimulation::commit() - no XC::AnalysisModel set\n";
return -1;
}
// update the response at the DOFs
theModel->setResponse(U.get(),U.getDot(),U.getDotDot());
// if (theModel->updateDomain() < 0) {
// std::cerr << "XC::HHTHybridSimulation::commit() - failed to update the domain\n";
// return -4;
// }
// set the time to be t+deltaT
double time = getCurrentModelTime();
time+= (1.0-alphaF)*deltaT;
setCurrentModelTime(time);
return commitModel();
}
int XC::Collocation::update(const Vector &deltaU)
{
AnalysisModel *theModel = this->getAnalysisModelPtr();
if (theModel == 0) {
std::cerr << "WARNING XC::Collocation::update() - no XC::AnalysisModel set\n";
return -1;
}
// check domainChanged() has been called, i.e. Ut will not be zero
if (Ut.get().Size() == 0) {
std::cerr << "WARNING XC::Collocation::update() - domainChange() failed or not called\n";
return -2;
}
// check deltaU is of correct size
if (deltaU.Size() != U.get().Size()) {
std::cerr << "WARNING XC::Collocation::update() - Vectors of incompatible size ";
std::cerr << " expecting " << U.get().Size() << " obtained " << deltaU.Size() << std::endl;
return -3;
}
// determine the response at t+theta*deltaT
(U.get()) += deltaU;
U.getDot().addVector(1.0, deltaU, c2);
U.getDotDot().addVector(1.0, deltaU, c3);
// update the response at the DOFs
theModel->setResponse(U.get(),U.getDot(),U.getDotDot());
if(updateModel() < 0)
{
std::cerr << "XC::Collocation::update() - failed to update the domain\n";
return -4;
}
return 0;
}
int
LoadControl::update(const Vector &deltaU)
{
AnalysisModel *myModel = this->getAnalysisModel();
LinearSOE *theSOE = this->getLinearSOE();
if (myModel == 0 || theSOE == 0) {
opserr << "WARNING LoadControl::update() ";
opserr << "No AnalysisModel or LinearSOE has been set\n";
return -1;
}
myModel->incrDisp(deltaU);
if (myModel->updateDomain() < 0) {
opserr << "LoadControl::update - model failed to update for new dU\n";
return -1;
}
// Set deltaU for the convergence test
theSOE->setX(deltaU);
numIncrLastStep++;
return 0;
}
//! @brief Constructor.
//!
//! The constructor is responsible for constructing the graph given {\em
//! theModel}. It creates the vertices of the graph, one for every
//! equation (each DOF that has not been constrained out by the
//! constraint handler) in the model and adds all edges based on the
//! FE\_Element connectivity. For this reason the model must be fully
//! populated with the DOF\_Group and FE\_Element objects before
// the constructor is called.
XC::DOF_GroupGraph::DOF_GroupGraph(const AnalysisModel &theModel)
:ModelGraph(theModel.getNumDOF_Groups()+START_VERTEX_NUM,theModel)
{
assert(myModel);
const int numVertex= myModel->getNumDOF_Groups();
if(numVertex>0)
{
const DOF_Group *dofGroupPtr= nullptr;
// now create the vertices with a reference equal to the DOF_Group number.
// and a tag which ranges from 0 through numVertex-1
DOF_GrpConstIter &dofIter2 = myModel->getConstDOFs();
while((dofGroupPtr = dofIter2()) != 0)
{
const int DOF_GroupTag = dofGroupPtr->getTag();
const int DOF_GroupNodeTag = dofGroupPtr->getNodeTag();
const int numDOF = dofGroupPtr->getNumFreeDOF();
Vertex vrt(DOF_GroupTag, DOF_GroupNodeTag, 0, numDOF);
this->addVertex(vrt);
}
// now add the edges, by looping over the Elements, getting their
// IDs and adding edges between DOFs for equation numbers >= START_EQN_NUM
const FE_Element *elePtr= nullptr;
FE_EleConstIter &eleIter = myModel->getConstFEs();
while((elePtr = eleIter()) != 0)
{
const ID &id= elePtr->getDOFtags();
const int size = id.Size();
for(int i=0; i<size; i++)
{
int dof1 = id(i);
for(int j=0; j<size; j++)
if(i != j)
{
const int dof2 = id(j);
this->addEdge(dof1,dof2);
}
}
}
}
}
int GeneralizedAlpha::commit(void)
{
AnalysisModel *theModel = this->getAnalysisModel();
if (theModel == 0) {
opserr << "WARNING GeneralizedAlpha::commit() - no AnalysisModel set\n";
return -1;
}
// update the response at the DOFs
theModel->setResponse(*U,*Udot,*Udotdot);
if (theModel->updateDomain() < 0) {
opserr << "GeneralizedAlpha::commit() - failed to update the domain\n";
return -4;
}
// set the time to be t+deltaT
double time = theModel->getCurrentDomainTime();
time += (1.0-alphaF)*deltaT;
theModel->setCurrentDomainTime(time);
return theModel->commitDomain();
}
//! @brief Handle the constraints.
//!
//! Determines the number of FE\_Elements and DOF\_Groups needed from the
//! Domain (a one to one mapping between Elements and FE\_Elements and
//! Nodes and DOF\_Groups) Creates two arrays of pointers to store the
//! FE\_elements and DOF\_Groups, returning a warning message and a \f$-2\f$
//! or \f$-3\f$ if not enough memory is available for these arrays. Then the
//! object will iterate through the Nodes of the Domain, creating a
//! DOF\_Group for each node and setting the initial id for each dof to
//! \f$-2\f$ if no SFreedom\_Constraint exists for the dof, or \f$-1\f$ if a
//! SFreedom\_Constraint exists or \f$-3\f$ if the node identifier is in {\em
//! nodesToBeNumberedLast}. The object then iterates through the Elements
//! of the Domain creating a FE\_Element for each Element, if the Element
//! is a Subdomain setFE\_ElementPtr() is invoked on the Subdomain
//! with the new FE\_Element as the argument. If not enough memory is
//! available for any DOF\_Group or FE\_element a warning message is
//! printed and a \f$-4\f$ or \f$-5\f$ is returned. If any MFreedom\_Constraint
//! objects exist in the Domain a warning message is printed and \f$-6\f$ is
//! returned. If all is successful, the method returns the number of
//! degrees-of-freedom associated with the DOF\_Groups in {\em
//! nodesToBeNumberedLast}.
int XC::PlainHandler::handle(const ID *nodesLast)
{
// first check links exist to a Domain and an AnalysisModel object
Domain *theDomain = this->getDomainPtr();
AnalysisModel *theModel = this->getAnalysisModelPtr();
Integrator *theIntegrator = this->getIntegratorPtr();
if((!theDomain) || (!theModel) || (!theIntegrator))
{
std::cerr << getClassName() << "::" << __FUNCTION__
<< "; domain, model or integrator was not set.\n";
return -1;
}
// initialse the DOF_Groups and add them to the AnalysisModel.
// : must of course set the initial IDs
NodeIter &theNod= theDomain->getNodes();
Node *nodPtr= nullptr;
SFreedom_Constraint *spPtr= nullptr;
DOF_Group *dofPtr= nullptr;
int numDOF = 0;
int count3 = 0;
int countDOF =0;
while((nodPtr = theNod()) != nullptr)
{
dofPtr= theModel->createDOF_Group(numDOF++, nodPtr);
// initially set all the ID value to -2
countDOF+= dofPtr->inicID(-2);
// loop through the SFreedom_Constraints to see if any of the
// DOFs are constrained, if so set initial XC::ID value to -1
int nodeID = nodPtr->getTag();
SFreedom_ConstraintIter &theSPs = theDomain->getConstraints().getDomainAndLoadPatternSPs();
while((spPtr = theSPs()) != 0)
if(spPtr->getNodeTag() == nodeID)
{
if(spPtr->isHomogeneous() == false)
std::cerr << getClassName() << "::" << __FUNCTION__
<< "; non-homogeneos constraint"
<< " for node " << spPtr->getNodeTag()
<< " h**o assumed\n";
const ID &id = dofPtr->getID();
int dof = spPtr->getDOF_Number();
if(id(dof) == -2)
{
dofPtr->setID(spPtr->getDOF_Number(),-1);
countDOF--;
}
else
std::cerr << getClassName() << "::" << __FUNCTION__
<< "; multiple single pointconstraints at DOF "
<< dof << " for node " << spPtr->getNodeTag()
<< std::endl;
}
// loop through the MFreedom_Constraints to see if any of the
// DOFs are constrained, note constraint matrix must be diagonal
// with 1's on the diagonal
MFreedom_ConstraintIter &theMPs = theDomain->getConstraints().getMPs();
MFreedom_Constraint *mpPtr;
while((mpPtr = theMPs()) != 0)
{
if(mpPtr->getNodeConstrained() == nodeID)
{
if(mpPtr->isTimeVarying() == true)
std::cerr << getClassName() << "::" << __FUNCTION__
<< "; time-varying constraint"
<< " for node " << nodeID
<< " non-varying assumed\n";
const Matrix &C = mpPtr->getConstraint();
int numRows = C.noRows();
int numCols = C.noCols();
if(numRows != numCols)
std::cerr << getClassName() << "::" << __FUNCTION__
<< " constraint matrix not diagonal,"
<< " ignoring constraint for node "
<< nodeID << std::endl;
else
{
int ok = 0;
for(int i=0; i<numRows; i++)
{
if(C(i,i) != 1.0) ok = 1;
for(int j=0; j<numRows; j++)
if(i != j)
if(C(i,j) != 0.0)
ok = 1;
}
if(ok != 0)
std::cerr << getClassName() << "::" << __FUNCTION__
<< "; constraint matrix not identity,"
<< " ignoring constraint for node "
<< nodeID << std::endl;
else
{
const ID &dofs = mpPtr->getConstrainedDOFs();
const ID &id = dofPtr->getID();
for(int i=0; i<dofs.Size(); i++)
{
int dof = dofs(i);
if(id(dof) == -2)
{
dofPtr->setID(dof,-4);
countDOF--;
}
else
std::cerr << getClassName() << "::" << __FUNCTION__
<< "; constraint at dof " << dof
<< " already specified for constrained node"
<< " in MFreedom_Constraint at node "
<< nodeID << std::endl;
}
}
}
}
}
// loop through the MFreedom_Constraints to see if any of the
// DOFs are constrained, note constraint matrix must be diagonal
// with 1's on the diagonal
MRMFreedom_ConstraintIter &theMRMPs = theDomain->getConstraints().getMRMPs();
MRMFreedom_Constraint *mrmpPtr;
while((mrmpPtr = theMRMPs()) != 0)
{
std::cerr << getClassName() << "::" << __FUNCTION__
<< "; loop through the MRMFreedom_Constraints."
<< std::endl;
}
}
// set the number of eqn in the model
theModel->setNumEqn(countDOF);
// now see if we have to set any of the dof's to -3
// int numLast = 0;
if(nodesLast != 0)
for(int i=0; i<nodesLast->Size(); i++)
{
int nodeID = (*nodesLast)(i);
Node *nodPtr = theDomain->getNode(nodeID);
if(nodPtr != 0)
{
dofPtr = nodPtr->getDOF_GroupPtr();
const ID &id = dofPtr->getID();
// set all the dof values to -3
for (int j=0; j < id.Size(); j++)
if(id(j) == -2)
{
dofPtr->setID(j,-3);
count3++;
}
else
std::cerr << getClassName() << "::" << __FUNCTION__
<< "; boundary sp constraint in subdomain"
<< " this should not be - results suspect \n";
}
}
// initialise the FE_Elements and add to the XC::AnalysisModel.
ElementIter &theEle = theDomain->getElements();
Element *elePtr;
int numFe = 0;
FE_Element *fePtr;
while((elePtr = theEle()) != 0)
{ fePtr= theModel->createFE_Element(numFe++, elePtr); }
return count3;
}
int
HHT1::domainChanged()
{
AnalysisModel *myModel = this->getAnalysisModel();
LinearSOE *theLinSOE = this->getLinearSOE();
const Vector &x = theLinSOE->getX();
int size = x.Size();
// if damping factors exist set them in the ele & node of the domain
if (alphaM != 0.0 || betaK != 0.0 || betaKi != 0.0 || betaKc != 0.0)
myModel->setRayleighDampingFactors(alphaM, betaK, betaKi, betaKc);
// create the new Vector objects
if (Ut == 0 || Ut->Size() != size) {
// delete the old
if (Ut != 0)
delete Ut;
if (Utdot != 0)
delete Utdot;
if (Utdotdot != 0)
delete Utdotdot;
if (U != 0)
delete U;
if (Udot != 0)
delete Udot;
if (Udotdot != 0)
delete Udotdot;
if (Ualpha != 0)
delete Ualpha;
if (Udotalpha != 0)
delete Udotalpha;
// create the new
Ut = new Vector(size);
Utdot = new Vector(size);
Utdotdot = new Vector(size);
U = new Vector(size);
Udot = new Vector(size);
Udotdot = new Vector(size);
Ualpha = new Vector(size);
Udotalpha = new Vector(size);
// check we obtained the new
if (Ut == 0 || Ut->Size() != size ||
Utdot == 0 || Utdot->Size() != size ||
Utdotdot == 0 || Utdotdot->Size() != size ||
U == 0 || U->Size() != size ||
Udot == 0 || Udot->Size() != size ||
Udotdot == 0 || Udotdot->Size() != size ||
Ualpha == 0 || Ualpha->Size() != size ||
Udotalpha == 0 || Udotalpha->Size() != size) {
opserr << "HHT1::domainChanged - ran out of memory\n";
// delete the old
if (Ut != 0)
delete Ut;
if (Utdot != 0)
delete Utdot;
if (Utdotdot != 0)
delete Utdotdot;
if (U != 0)
delete U;
if (Udot != 0)
delete Udot;
if (Udotdot != 0)
delete Udotdot;
if (Ualpha != 0)
delete Ualpha;
if (Udotalpha != 0)
delete Udotalpha;
Ut = 0; Utdot = 0; Utdotdot = 0;
U = 0; Udot = 0; Udotdot = 0; Udotalpha=0; Ualpha =0;
return -1;
}
}
// now go through and populate U, Udot and Udotdot by iterating through
// the DOF_Groups and getting the last committed velocity and accel
DOF_GrpIter &theDOFs = myModel->getDOFs();
DOF_Group *dofPtr;
while ((dofPtr = theDOFs()) != 0) {
const ID &id = dofPtr->getID();
int idSize = id.Size();
int i;
const Vector &disp = dofPtr->getCommittedDisp();
for (i=0; i < idSize; i++) {
int loc = id(i);
if (loc >= 0) {
(*U)(loc) = disp(i);
}
}
const Vector &vel = dofPtr->getCommittedVel();
for (i=0; i < idSize; i++) {
int loc = id(i);
if (loc >= 0) {
(*Udot)(loc) = vel(i);
}
}
const Vector &accel = dofPtr->getCommittedAccel();
for (i=0; i < idSize; i++) {
int loc = id(i);
if (loc >= 0) {
(*Udotdot)(loc) = accel(i);
}
}
/** NOTE WE CAN't DO TOGETHER BECAUSE DOF_GROUPS USING SINGLE VECTOR ******
for (int i=0; i < id.Size(); i++) {
int loc = id(i);
if (loc >= 0) {
(*U)(loc) = disp(i);
(*Udot)(loc) = vel(i);
(*Udotdot)(loc) = accel(i);
}
}
*******************************************************************************/
}
return 0;
}
int
HHT1::newStep(double deltaT)
{
if (beta == 0 || gamma == 0 ) {
opserr << "HHT1::newStep() - error in variable\n";
opserr << "gamma = " << gamma << " beta= " << beta << endln;
return -1;
}
if (deltaT <= 0.0) {
opserr << "HHT1::newStep() - error in variable\n";
opserr << "dT = " << deltaT << endln;
return -2;
}
c1 = 1.0;
c2 = gamma/(beta*deltaT);
c3 = 1.0/(beta*deltaT*deltaT);
AnalysisModel *theModel = this->getAnalysisModel();
if (U == 0) {
opserr << "HHT1::newStep() - domainChange() failed or hasn't been called\n";
return -3;
}
// set response at t to be that at t+delta t of previous step
(*Ut) = *U;
(*Utdot) = *Udot;
(*Utdotdot) = *Udotdot;
// set new velocity and accelerations at t + delta t
double a1 = (1.0 - gamma/beta);
double a2 = (deltaT)*(1.0 - 0.5*gamma/beta);
// (*Udot) *= a1;
Udot->addVector(a1, *Utdotdot,a2);
double a3 = -1.0/(beta*deltaT);
double a4 = 1 - 0.5/beta;
// (*Udotdot) *= a4;
Udotdot->addVector(a4, *Utdot,a3);
(*Ualpha) = *Ut;
(*Udotalpha) = *Utdot;
// (*Udotalpha) *= (1 - alpha);
Udotalpha->addVector((1-alpha), *Udot, alpha);
// set the new trial response quantities
theModel->setResponse(*Ualpha,*Udotalpha,*Udotdot);
// increment the time and apply the load
double time = theModel->getCurrentDomainTime();
time +=deltaT;
if (theModel->updateDomain(time, deltaT) < 0) {
opserr << "HHT::newStep() - failed to update the domain\n";
return -4;
}
return 0;
}
int TRBDF2::newStep(double deltaT)
{
// check the vectors have been created
if (U == 0) {
opserr << "TRBDF2::newStep() - domainChange() failed or hasn't been called\n";
return -3;
}
// mark step as Trapezoidal (=0) or Backward Euler (=1)
if (deltaT != dt || step == 1) {
step = 0;
} else
step = 1;
// get a pointer to the AnalysisModel
AnalysisModel *theModel = this->getAnalysisModel();
// set response at t to be that at t+deltaT of previous step
dt = deltaT;
(*Utm1) = *Ut;
(*Utm1dot) = *Utdot;
(*Ut) = *U;
(*Utdot) = *Udot;
(*Utdotdot) = *Udotdot;
// set the constants
if (step == 0) { // trapezoidal
c1 = 1.0;
c2 = 2.0/deltaT;
c3 = 4.0/(deltaT*deltaT);
(*Udot) *= -1.0;
double a3 = -4.0/deltaT;
double a4 = -1;
Udotdot->addVector(a4, *Utdot, a3);
// set the trial response quantities
theModel->setVel(*Udot);
theModel->setAccel(*Udotdot);
} else { // backward euler
c1 = 1.0;
c2 = 1.5/deltaT;
c3 = 2.25/(deltaT*deltaT);
(*Udot) = *Utm1;
Udot->addVector(0.5/deltaT, *Ut, -1/(2.0*deltaT));
(*Udotdot) = *Utm1dot;
Udotdot->addVector(0.5/deltaT, *Utdot, -4.0/(2.0*deltaT));
Udotdot->addVector(1.0, *Udot, 3.0/(2.0*deltaT));
// set the trial response quantities
theModel->setVel(*Udot);
theModel->setAccel(*Udotdot);
}
// increment the time to t+deltaT and apply the load
double time = theModel->getCurrentDomainTime();
time += deltaT;
if (theModel->updateDomain(time, deltaT) < 0) {
opserr << "TRBDF2::newStep() - failed to update the domain\n";
return -4;
}
return 0;
}
int
LagrangeConstraintHandler::handle(const ID *nodesLast)
{
// first check links exist to a Domain and an AnalysisModel object
Domain *theDomain = this->getDomainPtr();
AnalysisModel *theModel = this->getAnalysisModelPtr();
Integrator *theIntegrator = this->getIntegratorPtr();
if ((theDomain == 0) || (theModel == 0) || (theIntegrator == 0)) {
opserr << "WARNING LagrangeConstraintHandler::handle() - ";
opserr << " setLinks() has not been called\n";
return -1;
}
// get number ofelements and nodes in the domain
// and init the theFEs and theDOFs arrays
int numConstraints = 0;
SP_ConstraintIter &theSPss = theDomain->getDomainAndLoadPatternSPs();
SP_Constraint *spPtr;
while ((spPtr = theSPss()) != 0)
numConstraints++;
numConstraints += theDomain->getNumMPs();
//create a DOF_Group for each Node and add it to the AnalysisModel.
// : must of course set the initial IDs
NodeIter &theNod = theDomain->getNodes();
Node *nodPtr;
MP_Constraint *mpPtr;
DOF_Group *dofPtr;
int numDofGrp = 0;
int count3 = 0;
int countDOF =0;
while ((nodPtr = theNod()) != 0) {
if ((dofPtr = new DOF_Group(numDofGrp++, nodPtr)) == 0) {
opserr << "WARNING LagrangeConstraintHandler::handle() ";
opserr << "- ran out of memory";
opserr << " creating DOF_Group " << numDofGrp++ << endln;
return -4;
}
// initially set all the ID value to -2
const ID &id = dofPtr->getID();
for (int j=0; j < id.Size(); j++) {
dofPtr->setID(j,-2);
countDOF++;
}
nodPtr->setDOF_GroupPtr(dofPtr);
theModel->addDOF_Group(dofPtr);
}
// create the FE_Elements for the Elements and add to the AnalysisModel
ElementIter &theEle = theDomain->getElements();
Element *elePtr;
int numFeEle = 0;
FE_Element *fePtr;
while ((elePtr = theEle()) != 0) {
// only create an FE_Element for a subdomain element if it does not
// do independent analysis .. then subdomain part of this analysis so create
// an FE_element & set subdomain to point to it.
if (elePtr->isSubdomain() == true) {
Subdomain *theSub = (Subdomain *)elePtr;
if (theSub->doesIndependentAnalysis() == false) {
if ((fePtr = new FE_Element(numFeEle++, elePtr)) == 0) {
opserr << "WARNING PlainHandler::handle() - ran out of memory";
opserr << " creating FE_Element " << elePtr->getTag() << endln;
return -5;
}
theModel->addFE_Element(fePtr);
theSub->setFE_ElementPtr(fePtr);
} // if (theSub->doesIndependentAnalysis() == false) {
} else {
// just a regular element .. create an FE_Element for it & add to AnalysisModel
if ((fePtr = new FE_Element(numFeEle++, elePtr)) == 0) {
opserr << "WARNING PlainHandler::handle() - ran out of memory";
opserr << " creating FE_Element " << elePtr->getTag() << endln;
return -5;
}
theModel->addFE_Element(fePtr);
}
}
// create the LagrangeSP_FE for the SP_Constraints and
// add to the AnalysisModel
SP_ConstraintIter &theSPs = theDomain->getDomainAndLoadPatternSPs();
while ((spPtr = theSPs()) != 0) {
if ((dofPtr = new LagrangeDOF_Group(numDofGrp++, *spPtr)) == 0) {
opserr << "WARNING LagrangeConstraintHandler::handle()";
opserr << " - ran out of memory";
opserr << " creating LagrangeDOFGroup " << endln;
return -5;
}
const ID &id = dofPtr->getID();
for (int j=0; j < id.Size(); j++) {
dofPtr->setID(j,-2);
countDOF++;
}
theModel->addDOF_Group(dofPtr);
if ((fePtr = new LagrangeSP_FE(numFeEle++, *theDomain, *spPtr,
*dofPtr, alphaSP)) == 0) {
opserr << "WARNING LagrangeConstraintHandler::handle()";
opserr << " - ran out of memory";
opserr << " creating LagrangeSP_FE " << endln;
return -5;
}
theModel->addFE_Element(fePtr);
}
// create the LagrangeMP_FE for the MP_Constraints and
// add to the AnalysisModel
MP_ConstraintIter &theMPs = theDomain->getMPs();
while ((mpPtr = theMPs()) != 0) {
if ((dofPtr = new LagrangeDOF_Group(numDofGrp++, *mpPtr)) == 0) {
opserr << "WARNING LagrangeConstraintHandler::handle()";
opserr << " - ran out of memory";
opserr << " creating LagrangeDOFGroup " << endln;
return -5;
}
const ID &id = dofPtr->getID();
for (int j=0; j < id.Size(); j++) {
dofPtr->setID(j,-2);
countDOF++;
}
theModel->addDOF_Group(dofPtr);
if ((fePtr = new LagrangeMP_FE(numFeEle++, *theDomain, *mpPtr,
*dofPtr, alphaMP)) == 0) {
opserr << "WARNING LagrangeConstraintHandler::handle()";
opserr << " - ran out of memory";
opserr << " creating LagrangeMP_FE " << endln;
return -5;
}
theModel->addFE_Element(fePtr);
}
theModel->setNumEqn(countDOF);
// set the number of eqn in the model
// now see if we have to set any of the dof's to -3
// int numLast = 0;
if (nodesLast != 0)
for (int i=0; i<nodesLast->Size(); i++) {
int nodeID = (*nodesLast)(i);
Node *nodPtr = theDomain->getNode(nodeID);
if (nodPtr != 0) {
dofPtr = nodPtr->getDOF_GroupPtr();
const ID &id = dofPtr->getID();
// set all the dof values to -3
for (int j=0; j < id.Size(); j++)
if (id(j) == -2) {
dofPtr->setID(j,-3);
count3++;
} else {
opserr << "WARNING LagrangeConstraintHandler::handle() ";
opserr << " - boundary sp constraint in subdomain";
opserr << " this should not be - results suspect \n";
}
}
}
return count3;
}
int
PlainNumberer::numberDOF(int lastDOF)
{
int eqnNumber = 0; // start equation number = 0
// get a pointer to the model & check its not null
AnalysisModel *theModel = this->getAnalysisModelPtr();
Domain *theDomain = 0;
if (theModel != 0) theDomain = theModel->getDomainPtr();
if (theModel == 0 || theDomain == 0) {
opserr << "WARNING PlainNumberer::numberDOF(int) -";
opserr << " - no AnalysisModel - has setLinks() been invoked?\n";
return -1;
}
if (lastDOF != -1) {
opserr << "WARNING PlainNumberer::numberDOF(int lastDOF):";
opserr << " does not use the lastDOF as requested\n";
}
// iterate throgh the DOFs first time setting -2 values
DOF_GrpIter &theDOFs = theModel->getDOFs();
DOF_Group *dofPtr;
while ((dofPtr = theDOFs()) != 0) {
const ID &theID = dofPtr->getID();
for (int i=0; i<theID.Size(); i++)
if (theID(i) == -2)
dofPtr->setID(i,eqnNumber++);
}
// iterate throgh the DOFs second time setting -3 values
DOF_GrpIter &moreDOFs = theModel->getDOFs();
while ((dofPtr = moreDOFs()) != 0) {
const ID &theID = dofPtr->getID();
for (int i=0; i<theID.Size(); i++)
if (theID(i) == -3) dofPtr->setID(i,eqnNumber++);
}
// iterate through the DOFs one last time setting any -4 values
DOF_GrpIter &tDOFs = theModel->getDOFs();
while ((dofPtr = tDOFs()) != 0) {
const ID &theID = dofPtr->getID();
int have4s = 0;
for (int i=0; i<theID.Size(); i++)
if (theID(i) == -4) have4s = 1;
if (have4s == 1) {
int nodeID = dofPtr->getNodeTag();
// loop through the MP_Constraints to see if any of the
// DOFs are constrained, note constraint matrix must be diagonal
// with 1's on the diagonal
MP_ConstraintIter &theMPs = theDomain->getMPs();
MP_Constraint *mpPtr;
while ((mpPtr = theMPs()) != 0 ) {
// note keep looping over all in case multiple constraints
// are used to constrain a node -- can't assume intelli user
if (mpPtr->getNodeConstrained() == nodeID) {
int nodeRetained = mpPtr->getNodeRetained();
Node *nodeRetainedPtr = theDomain->getNode(nodeRetained);
DOF_Group *retainedDOF = nodeRetainedPtr->getDOF_GroupPtr();
const ID&retainedDOFIDs = retainedDOF->getID();
const ID&constrainedDOFs = mpPtr->getConstrainedDOFs();
const ID&retainedDOFs = mpPtr->getRetainedDOFs();
for (int i=0; i<constrainedDOFs.Size(); i++) {
int dofC = constrainedDOFs(i);
int dofR = retainedDOFs(i);
int dofID = retainedDOFIDs(dofR);
dofPtr->setID(dofC, dofID);
}
}
}
}
}
eqnNumber--;
int numEqn = eqnNumber - START_EQN_NUMBER +1;
// iterate through the FE_Element getting them to set their IDs
FE_EleIter &theEle = theModel->getFEs();
FE_Element *elePtr;
while ((elePtr = theEle()) != 0)
elePtr->setID();
// set the numOfEquation in the Model
theModel->setNumEqn(numEqn);
return numEqn;
}
int
TransformationConstraintHandler::handle(const ID *nodesLast)
{
// first check links exist to a Domain and an AnalysisModel object
Domain *theDomain = this->getDomainPtr();
AnalysisModel *theModel = this->getAnalysisModelPtr();
Integrator *theIntegrator = this->getIntegratorPtr();
if ((theDomain == 0) || (theModel == 0) || (theIntegrator == 0)) {
opserr << "WARNING TransformationConstraintHandler::handle() - ";
opserr << " setLinks() has not been called\n";
return -1;
}
// get number ofelements and nodes in the domain
// and init the theFEs and theDOFs arrays
int numMPConstraints = theDomain->getNumMPs();
// int numSPConstraints = theDomain->getNumSPs();
int numSPConstraints = 0;
SP_ConstraintIter &theSP1s = theDomain->getDomainAndLoadPatternSPs();
SP_Constraint *theSP1;
while ((theSP1 = theSP1s()) != 0)
numSPConstraints++;
numDOF = 0;
ID transformedNode(0, 64);
int i;
// create an ID of constrained node tags in MP_Constraints
ID constrainedNodesMP(0, numMPConstraints);
MP_Constraint **mps =0;
if (numMPConstraints != 0) {
mps = new MP_Constraint *[numMPConstraints];
if (mps == 0) {
opserr << "WARNING TransformationConstraintHandler::handle() - ";
opserr << "ran out of memory for MP_Constraints";
opserr << " array of size " << numMPConstraints << endln;
return -3;
}
MP_ConstraintIter &theMPs = theDomain->getMPs();
MP_Constraint *theMP;
int index = 0;
while ((theMP = theMPs()) != 0) {
int nodeConstrained = theMP->getNodeConstrained();
if (transformedNode.getLocation(nodeConstrained) < 0)
transformedNode[numDOF++] = nodeConstrained;
constrainedNodesMP[index] = nodeConstrained;
mps[index] = theMP;
index++;
}
}
// create an ID of constrained node tags in SP_Constraints
ID constrainedNodesSP(0, numSPConstraints);;
SP_Constraint **sps =0;
if (numSPConstraints != 0) {
sps = new SP_Constraint *[numSPConstraints];
if (sps == 0) {
opserr << "WARNING TransformationConstraintHandler::handle() - ";
opserr << "ran out of memory for SP_Constraints";
opserr << " array of size " << numSPConstraints << endln;
if (mps != 0) delete [] mps;
if (sps != 0) delete [] sps;
return -3;
}
SP_ConstraintIter &theSPs = theDomain->getDomainAndLoadPatternSPs();
SP_Constraint *theSP;
int index = 0;
while ((theSP = theSPs()) != 0) {
int constrainedNode = theSP->getNodeTag();
if (transformedNode.getLocation(constrainedNode) < 0)
transformedNode[numDOF++] = constrainedNode;
constrainedNodesSP[index] = constrainedNode;
sps[index] = theSP;
index++;
}
}
// create an array for the DOF_Groups and zero it
if ((numDOF != 0) && ((theDOFs = new DOF_Group *[numDOF]) == 0)) {
opserr << "WARNING TransformationConstraintHandler::handle() - ";
opserr << "ran out of memory for DOF_Groups";
opserr << " array of size " << numDOF << endln;
return -3;
}
for (i=0; i<numDOF; i++) theDOFs[i] = 0;
//create a DOF_Group for each Node and add it to the AnalysisModel.
// :must of course set the initial IDs
NodeIter &theNod = theDomain->getNodes();
Node *nodPtr;
int numDofGrp = 0;
int count3 = 0;
int countDOF =0;
numConstrainedNodes = 0;
numDOF = 0;
while ((nodPtr = theNod()) != 0) {
DOF_Group *dofPtr = 0;
int nodeTag = nodPtr->getTag();
int numNodalDOF = nodPtr->getNumberDOF();
int loc = -1;
int createdDOF = 0;
loc = constrainedNodesMP.getLocation(nodeTag);
if (loc >= 0) {
TransformationDOF_Group *tDofPtr =
new TransformationDOF_Group(numDofGrp++, nodPtr, mps[loc], this);
createdDOF = 1;
dofPtr = tDofPtr;
// add any SPs
if (numSPConstraints != 0) {
loc = constrainedNodesSP.getLocation(nodeTag);
if (loc >= 0) {
tDofPtr->addSP_Constraint(*(sps[loc]));
for (int i = loc+1; i<numSPConstraints; i++) {
if (constrainedNodesSP(i) == nodeTag)
tDofPtr->addSP_Constraint(*(sps[i]));
}
}
// add the DOF to the array
theDOFs[numDOF++] = dofPtr;
numConstrainedNodes++;
}
}
if (createdDOF == 0) {
loc = constrainedNodesSP.getLocation(nodeTag);
if (loc >= 0) {
TransformationDOF_Group *tDofPtr =
new TransformationDOF_Group(numDofGrp++, nodPtr, this);
int numSPs = 1;
createdDOF = 1;
dofPtr = tDofPtr;
tDofPtr->addSP_Constraint(*(sps[loc]));
// check for more SP_constraints acting on node and add them
for (int i = loc+1; i<numSPConstraints; i++) {
if (constrainedNodesSP(i) == nodeTag) {
tDofPtr->addSP_Constraint(*(sps[i]));
numSPs++;
}
}
// add the DOF to the array
theDOFs[numDOF++] = dofPtr;
numConstrainedNodes++;
countDOF+= numNodalDOF - numSPs;
}
}
// create an ordinary DOF_Group object if no dof constrained
if (createdDOF == 0) {
if ((dofPtr = new DOF_Group(numDofGrp++, nodPtr)) == 0) {
opserr << "WARNING TransformationConstraintHandler::handle() ";
opserr << "- ran out of memory";
opserr << " creating DOF_Group " << i << endln;
if (mps != 0) delete [] mps;
if (sps != 0) delete [] sps;
return -4;
}
countDOF+= numNodalDOF;
}
if (dofPtr == 0)
opserr << "TransformationConstraintHandler::handle() - error in logic\n";
nodPtr->setDOF_GroupPtr(dofPtr);
theModel->addDOF_Group(dofPtr);
}
// create the FE_Elements for the Elements and add to the AnalysisModel
ElementIter &theEle = theDomain->getElements();
Element *elePtr;
FE_Element *fePtr;
numFE = 0;
ID transformedEle(0, 64);
while ((elePtr = theEle()) != 0) {
int flag = 0;
if (elePtr->isSubdomain() == true) {
Subdomain *theSub = (Subdomain *)elePtr;
if (theSub->doesIndependentAnalysis() == true)
flag = 1;
}
if (flag == 0) {
const ID &nodes = elePtr->getExternalNodes();
int nodesSize = nodes.Size();
int isConstrainedNode = 0;
for (int i=0; i<nodesSize; i++) {
int nodeTag = nodes(i);
if (numMPConstraints != 0) {
int loc = constrainedNodesMP.getLocation(nodeTag);
if (loc >= 0) {
isConstrainedNode = 1;
i = nodesSize;
}
}
if (numSPConstraints != 0 && isConstrainedNode == 0) {
int loc = constrainedNodesSP.getLocation(nodeTag);
if (loc >= 0) {
isConstrainedNode = 1;
i = nodesSize;
}
}
}
if (isConstrainedNode == 1) {
transformedEle[numFE++] = elePtr->getTag();
}
}
}
// create an array for the FE_elements and zero it
if ((numFE != 0) && ((theFEs = new FE_Element *[numFE]) == 0)) {
opserr << "WARNING TransformationConstraintHandler::handle() - ";
opserr << "ran out of memory for FE_elements";
opserr << " array of size " << numFE << endln;
return -2;
}
for (i=0; i<numFE; i++) theFEs[i] = 0;
ElementIter &theEle1 = theDomain->getElements();
// int numConstraints = numMPConstraints+numSPConstraints;
int numFeEle = 0;
int numFE = 0;
while ((elePtr = theEle1()) != 0) {
int tag = elePtr->getTag();
if (elePtr->isSubdomain() == true) {
Subdomain *theSub = (Subdomain *)elePtr;
if (theSub->doesIndependentAnalysis() == false) {
if (transformedEle.getLocation(tag) < 0) {
if ((fePtr = new FE_Element(numFeEle, elePtr)) == 0) {
opserr << "WARNING TransformationConstraintHandler::handle()";
opserr << " - ran out of memory";
opserr << " creating FE_Element " << elePtr->getTag() << endln;
if (mps != 0) delete [] mps;
if (sps != 0) delete [] sps;
return -5;
}
} else {
if ((fePtr = new TransformationFE(numFeEle, elePtr)) == 0) {
opserr << "WARNING TransformationConstraintHandler::handle()";
opserr << " - ran out of memory";
opserr << " creating TransformationFE " << elePtr->getTag() << endln;
if (mps != 0) delete [] mps;
if (sps != 0) delete [] sps;
return -6;
}
theFEs[numFE++] = fePtr;
}
numFeEle++;
theModel->addFE_Element(fePtr);
theSub->setFE_ElementPtr(fePtr);
}
} else {
if (transformedEle.getLocation(tag) < 0) {
if ((fePtr = new FE_Element(numFeEle, elePtr)) == 0) {
opserr << "WARNING TransformationConstraintHandler::handle()";
opserr << " - ran out of memory";
opserr << " creating FE_Element " << elePtr->getTag() << endln;
if (mps != 0) delete [] mps;
if (sps != 0) delete [] sps;
return -5;
}
} else {
if ((fePtr = new TransformationFE(numFeEle, elePtr)) == 0) {
opserr << "WARNING TransformationConstraintHandler::handle()";
opserr << " - ran out of memory";
opserr << " creating TransformationFE " << elePtr->getTag() << endln;
if (mps != 0) delete [] mps;
if (sps != 0) delete [] sps;
return -6;
}
theFEs[numFE++] = fePtr;
}
numFeEle++;
theModel->addFE_Element(fePtr);
}
}
theModel->setNumEqn(countDOF);
// set the number of eqn in the model
// now see if we have to set any of the dof's to -3
// int numLast = 0;
if (nodesLast != 0)
for (i=0; i<nodesLast->Size(); i++) {
int nodeID = (*nodesLast)(i);
Node *nodPtr = theDomain->getNode(nodeID);
if (nodPtr != 0) {
DOF_Group *dofPtr = nodPtr->getDOF_GroupPtr();
const ID &id = dofPtr->getID();
// set all the dof values to -3
for (int j=0; j < id.Size(); j++) {
if (id(j) == -2) {
dofPtr->setID(j,-3);
count3++;
} else {
opserr << "WARNING TransformationConstraintHandler::handle() ";
opserr << " - boundary sp constraint in subdomain";
opserr << " this should not be - results suspect \n";
if (mps != 0) delete [] mps;
if (sps != 0) delete [] sps;
}
}
}
}
if (mps != 0) delete [] mps;
if (sps != 0) delete [] sps;
return count3;
}
int HHTHSFixedNumIter::update(const Vector &deltaU)
{
AnalysisModel *theModel = this->getAnalysisModel();
if (theModel == 0) {
opserr << "WARNING HHTHSFixedNumIter::update() - no AnalysisModel set\n";
return -1;
}
ConvergenceTest *theTest = this->getConvergenceTest();
if (theTest == 0) {
opserr << "WARNING HHTHSFixedNumIter::update() - no ConvergenceTest set\n";
return -2;
}
// check domainChanged() has been called, i.e. Ut will not be zero
if (Ut == 0) {
opserr << "WARNING HHTHSFixedNumIter::update() - domainChange() failed or not called\n";
return -3;
}
// check deltaU is of correct size
if (deltaU.Size() != U->Size()) {
opserr << "WARNING HHTHSFixedNumIter::update() - Vectors of incompatible size ";
opserr << " expecting " << U->Size() << " obtained " << deltaU.Size() << endln;
return -4;
}
// get interpolation location and scale displacement increment
x = (double) theTest->getNumTests()/theTest->getMaxNumTests();
if (polyOrder == 1) {
(*scaledDeltaU) = x*((*U)+deltaU) - (x-1.0)*(*Ut) - (*U);
}
else if (polyOrder == 2) {
(*scaledDeltaU) = x*(x+1.0)/2.0*((*U)+deltaU) - (x-1.0)*(x+1.0)*(*Ut)
+ (x-1.0)*x/2.0*(*Utm1) - (*U);
}
else if (polyOrder == 3) {
(*scaledDeltaU) = x*(x+1.0)*(x+2.0)/6.0*((*U)+deltaU) - (x-1.0)*(x+1.0)*(x+2.0)/2.0*(*Ut)
+ (x-1.0)*x*(x+2.0)/2.0*(*Utm1) - (x-1.0)*x*(x+1.0)/6.0*(*Utm2) - (*U);
}
else {
opserr << "WARNING HHTHSFixedNumIter::update() - polyOrder > 3 not supported\n";
}
// determine the response at t+deltaT
U->addVector(1.0, *scaledDeltaU, c1);
Udot->addVector(1.0, *scaledDeltaU, c2);
Udotdot->addVector(1.0, *scaledDeltaU, c3);
// determine response at t+alpha*deltaT
(*Ualpha) = *Ut;
Ualpha->addVector((1.0-alphaF), *U, alphaF);
(*Ualphadot) = *Utdot;
Ualphadot->addVector((1.0-alphaF), *Udot, alphaF);
(*Ualphadotdot) = *Utdotdot;
Ualphadotdot->addVector((1.0-alphaI), *Udotdot, alphaI);
// update the response at the DOFs
theModel->setResponse(*Ualpha,*Ualphadot,*Ualphadotdot);
if (theModel->updateDomain() < 0) {
opserr << "HHTHSFixedNumIter::update() - failed to update the domain\n";
return -5;
}
return 0;
}
int HHTHSFixedNumIter::domainChanged()
{
AnalysisModel *myModel = this->getAnalysisModel();
LinearSOE *theLinSOE = this->getLinearSOE();
const Vector &x = theLinSOE->getX();
int size = x.Size();
// if damping factors exist set them in the ele & node of the domain
if (alphaM != 0.0 || betaK != 0.0 || betaKi != 0.0 || betaKc != 0.0)
myModel->setRayleighDampingFactors(alphaM, betaK, betaKi, betaKc);
// create the new Vector objects
if (Ut == 0 || Ut->Size() != size) {
// delete the old
if (Ut != 0)
delete Ut;
if (Utdot != 0)
delete Utdot;
if (Utdotdot != 0)
delete Utdotdot;
if (U != 0)
delete U;
if (Udot != 0)
delete Udot;
if (Udotdot != 0)
delete Udotdot;
if (Ualpha != 0)
delete Ualpha;
if (Ualphadot != 0)
delete Ualphadot;
if (Ualphadotdot != 0)
delete Ualphadotdot;
if (Utm1 != 0)
delete Utm1;
if (Utm2 != 0)
delete Utm2;
if (scaledDeltaU != 0)
delete scaledDeltaU;
// create the new
Ut = new Vector(size);
Utdot = new Vector(size);
Utdotdot = new Vector(size);
U = new Vector(size);
Udot = new Vector(size);
Udotdot = new Vector(size);
Ualpha = new Vector(size);
Ualphadot = new Vector(size);
Ualphadotdot = new Vector(size);
Utm1 = new Vector(size);
Utm2 = new Vector(size);
scaledDeltaU = new Vector(size);
// check we obtained the new
if (Ut == 0 || Ut->Size() != size ||
Utdot == 0 || Utdot->Size() != size ||
Utdotdot == 0 || Utdotdot->Size() != size ||
U == 0 || U->Size() != size ||
Udot == 0 || Udot->Size() != size ||
Udotdot == 0 || Udotdot->Size() != size ||
Ualpha == 0 || Ualpha->Size() != size ||
Ualphadot == 0 || Ualphadot->Size() != size ||
Ualphadotdot == 0 || Ualphadotdot->Size() != size ||
Utm1 == 0 || Utm1->Size() != size ||
Utm2 == 0 || Utm2->Size() != size ||
scaledDeltaU == 0 || scaledDeltaU->Size() != size) {
opserr << "HHTHSFixedNumIter::domainChanged - ran out of memory\n";
// delete the old
if (Ut != 0)
delete Ut;
if (Utdot != 0)
delete Utdot;
if (Utdotdot != 0)
delete Utdotdot;
if (U != 0)
delete U;
if (Udot != 0)
delete Udot;
if (Udotdot != 0)
delete Udotdot;
if (Ualpha != 0)
delete Ualpha;
if (Ualphadot != 0)
delete Ualphadot;
if (Ualphadotdot != 0)
delete Ualphadotdot;
if (Utm1 != 0)
delete Utm1;
if (Utm2 != 0)
delete Utm2;
if (scaledDeltaU != 0)
delete scaledDeltaU;
Ut = 0; Utdot = 0; Utdotdot = 0;
U = 0; Udot = 0; Udotdot = 0;
Ualpha = 0; Ualphadot = 0; Ualphadotdot = 0;
Utm1 = 0; Utm2 = 0; scaledDeltaU = 0;
return -1;
}
}
// now go through and populate U, Udot and Udotdot by iterating through
// the DOF_Groups and getting the last committed velocity and accel
DOF_GrpIter &theDOFs = myModel->getDOFs();
DOF_Group *dofPtr;
while ((dofPtr = theDOFs()) != 0) {
const ID &id = dofPtr->getID();
int idSize = id.Size();
int i;
const Vector &disp = dofPtr->getCommittedDisp();
for (i=0; i < idSize; i++) {
int loc = id(i);
if (loc >= 0) {
(*Utm1)(loc) = disp(i);
(*Ut)(loc) = disp(i);
(*U)(loc) = disp(i);
}
}
const Vector &vel = dofPtr->getCommittedVel();
for (i=0; i < idSize; i++) {
int loc = id(i);
if (loc >= 0) {
(*Udot)(loc) = vel(i);
}
}
const Vector &accel = dofPtr->getCommittedAccel();
for (i=0; i < idSize; i++) {
int loc = id(i);
if (loc >= 0) {
(*Udotdot)(loc) = accel(i);
}
}
}
if (polyOrder == 2)
opserr << "\nWARNING: HHTHSFixedNumIter::domainChanged() - assuming Ut-1 = Ut\n";
else if (polyOrder == 3)
opserr << "\nWARNING: HHTHSFixedNumIter::domainChanged() - assuming Ut-2 = Ut-1 = Ut\n";
return 0;
}
int
ArcLength::update(const Vector &dU)
{
AnalysisModel *theModel = this->getAnalysisModel();
LinearSOE *theLinSOE = this->getLinearSOE();
if (theModel == 0 || theLinSOE == 0) {
opserr << "WARNING ArcLength::update() ";
opserr << "No AnalysisModel or LinearSOE has been set\n";
return -1;
}
(*deltaUbar) = dU; // have to do this as the SOE is gonna change
// determine dUhat
theLinSOE->setB(*phat);
theLinSOE->solve();
(*deltaUhat) = theLinSOE->getX();
// determine the coeeficients of our quadratic equation
double a = alpha2 + ((*deltaUhat)^(*deltaUhat));
double b = alpha2*deltaLambdaStep
+ ((*deltaUhat)^(*deltaUbar))
+ ((*deltaUstep)^(*deltaUhat));
b *= 2.0;
double c = 2*((*deltaUstep)^(*deltaUbar)) + ((*deltaUbar)^(*deltaUbar));
// check for a solution to quadratic
double b24ac = b*b - 4.0*a*c;
if (b24ac < 0) {
opserr << "ArcLength::update() - imaginary roots due to multiple instability";
opserr << " directions - initial load increment was too large\n";
opserr << "a: " << a << " b: " << b << " c: " << c << " b24ac: " << b24ac << endln;
return -1;
}
double a2 = 2.0*a;
if (a2 == 0.0) {
opserr << "ArcLength::update() - zero denominator";
opserr << " alpha was set to 0.0 and zero reference load\n";
return -2;
}
// determine the roots of the quadratic
double sqrtb24ac = sqrt(b24ac);
double dlambda1 = (-b + sqrtb24ac)/a2;
double dlambda2 = (-b - sqrtb24ac)/a2;
double val = (*deltaUhat)^(*deltaUstep);
double theta1 = ((*deltaUstep)^(*deltaUstep)) + ((*deltaUbar)^(*deltaUstep));
// double theta2 = theta1 + dlambda2*val;
theta1 += dlambda1*val;
// choose dLambda based on angle between incremental displacement before
// and after this step -- want positive
double dLambda;
if (theta1 > 0)
dLambda = dlambda1;
else
dLambda = dlambda2;
// determine delta U(i)
(*deltaU) = (*deltaUbar);
deltaU->addVector(1.0, *deltaUhat,dLambda);
// update dU and dlambda
(*deltaUstep) += *deltaU;
deltaLambdaStep += dLambda;
currentLambda += dLambda;
// update the model
theModel->incrDisp(*deltaU);
theModel->applyLoadDomain(currentLambda);
theModel->updateDomain();
// set the X soln in linearSOE to be deltaU for convergence Test
theLinSOE->setX(*deltaU);
return 0;
}
void
ArpackSolver::myMv(int n, double *v, double *result)
{
Vector x(v, n);
Vector y(result,n);
bool mDiagonal = theArpackSOE->mDiagonal;
if (mDiagonal == true) {
int Msize = theArpackSOE->Msize;
double *M = theArpackSOE->M;
/* for output
DataFileStream dataStream("M.txt");
dataStream.open();
for (int i=0; i<n; i++)
dataStream << M[i] << endln;
dataStream.close();
*/
if (n <= Msize) {
for (int i=0; i<n; i++)
result[i] = M[i]*v[i];
} else {
opserr << "ArpackSolver::myMv() n > Msize!\n";
return;
}
} else {
y.Zero();
AnalysisModel *theAnalysisModel = theArpackSOE->theModel;
// loop over the FE_Elements
FE_Element *elePtr;
FE_EleIter &theEles = theAnalysisModel->getFEs();
while((elePtr = theEles()) != 0) {
const Vector &b = elePtr->getM_Force(x, 1.0);
y.Assemble(b, elePtr->getID(), 1.0);
}
// loop over the DOF_Groups
DOF_Group *dofPtr;
DOF_GrpIter &theDofs = theAnalysisModel->getDOFs();
while ((dofPtr = theDofs()) != 0) {
const Vector &a = dofPtr->getM_Force(x,1.0);
y.Assemble(a, dofPtr->getID(), 1.0);
}
}
// if paallel we have to merge the results
int processID = theArpackSOE->processID;
if (processID != -1) {
Channel **theChannels = theArpackSOE->theChannels;
int numChannels = theArpackSOE->numChannels;
if (processID != 0) {
theChannels[0]->sendVector(0, 0, y);
theChannels[0]->recvVector(0, 0, y);
} else {
Vector other(workArea, n);
// recv contribution from remote & add
for (int i=0; i<numChannels; i++) {
theChannels[i]->recvVector(0,0,other);
y += other;
}
// send result back
for (int i=0; i<numChannels; i++) {
theChannels[i]->sendVector(0,0,y);
}
}
}
}
int CollocationHSIncrReduct::domainChanged()
{
AnalysisModel *theModel = this->getAnalysisModel();
LinearSOE *theLinSOE = this->getLinearSOE();
const Vector &x = theLinSOE->getX();
int size = x.Size();
// create the new Vector objects
if (Ut == 0 || Ut->Size() != size) {
// delete the old
if (Ut != 0)
delete Ut;
if (Utdot != 0)
delete Utdot;
if (Utdotdot != 0)
delete Utdotdot;
if (U != 0)
delete U;
if (Udot != 0)
delete Udot;
if (Udotdot != 0)
delete Udotdot;
if (scaledDeltaU != 0)
delete scaledDeltaU;
// create the new
Ut = new Vector(size);
Utdot = new Vector(size);
Utdotdot = new Vector(size);
U = new Vector(size);
Udot = new Vector(size);
Udotdot = new Vector(size);
scaledDeltaU = new Vector(size);
// check we obtained the new
if (Ut == 0 || Ut->Size() != size ||
Utdot == 0 || Utdot->Size() != size ||
Utdotdot == 0 || Utdotdot->Size() != size ||
U == 0 || U->Size() != size ||
Udot == 0 || Udot->Size() != size ||
Udotdot == 0 || Udotdot->Size() != size ||
scaledDeltaU == 0 || scaledDeltaU->Size() != size) {
opserr << "CollocationHSIncrReduct::domainChanged() - ran out of memory\n";
// delete the old
if (Ut != 0)
delete Ut;
if (Utdot != 0)
delete Utdot;
if (Utdotdot != 0)
delete Utdotdot;
if (U != 0)
delete U;
if (Udot != 0)
delete Udot;
if (Udotdot != 0)
delete Udotdot;
if (scaledDeltaU != 0)
delete scaledDeltaU;
Ut = 0; Utdot = 0; Utdotdot = 0;
U = 0; Udot = 0; Udotdot = 0;
scaledDeltaU = 0;
return -1;
}
}
// now go through and populate U, Udot and Udotdot by iterating through
// the DOF_Groups and getting the last committed velocity and accel
DOF_GrpIter &theDOFs = theModel->getDOFs();
DOF_Group *dofPtr;
while ((dofPtr = theDOFs()) != 0) {
const ID &id = dofPtr->getID();
int idSize = id.Size();
int i;
const Vector &disp = dofPtr->getCommittedDisp();
for (i=0; i < idSize; i++) {
int loc = id(i);
if (loc >= 0) {
(*U)(loc) = disp(i);
}
}
const Vector &vel = dofPtr->getCommittedVel();
for (i=0; i < idSize; i++) {
int loc = id(i);
if (loc >= 0) {
(*Udot)(loc) = vel(i);
}
}
const Vector &accel = dofPtr->getCommittedAccel();
for (i=0; i < idSize; i++) {
int loc = id(i);
if (loc >= 0) {
(*Udotdot)(loc) = accel(i);
}
}
}
return 0;
}
int Newmark::newStep(double deltaT)
{
if (beta == 0 || gamma == 0) {
opserr << "Newmark::newStep() - error in variable\n";
opserr << "gamma = " << gamma << " beta = " << beta << endln;
return -1;
}
if (deltaT <= 0.0) {
opserr << "Newmark::newStep() - error in variable\n";
opserr << "dT = " << deltaT << endln;
return -2;
}
// get a pointer to the AnalysisModel
AnalysisModel *theModel = this->getAnalysisModel();
// set the constants
if (displ == true) {
c1 = 1.0;
c2 = gamma/(beta*deltaT);
c3 = 1.0/(beta*deltaT*deltaT);
} else {
c1 = beta*deltaT*deltaT;
c2 = gamma*deltaT;
c3 = 1.0;
}
if (U == 0) {
opserr << "Newmark::newStep() - domainChange() failed or hasn't been called\n";
return -3;
}
// set response at t to be that at t+deltaT of previous step
(*Ut) = *U;
(*Utdot) = *Udot;
(*Utdotdot) = *Udotdot;
if (displ == true) {
// determine new velocities and accelerations at t+deltaT
double a1 = (1.0 - gamma/beta);
double a2 = (deltaT)*(1.0 - 0.5*gamma/beta);
Udot->addVector(a1, *Utdotdot, a2);
double a3 = -1.0/(beta*deltaT);
double a4 = 1.0 - 0.5/beta;
Udotdot->addVector(a4, *Utdot, a3);
// set the trial response quantities
theModel->setVel(*Udot);
theModel->setAccel(*Udotdot);
} else {
// determine new displacements and velocities at t+deltaT
double a1 = (deltaT*deltaT/2.0);
U->addVector(1.0, *Utdot, deltaT);
U->addVector(1.0, *Utdotdot, a1);
Udot->addVector(1.0, *Utdotdot, deltaT);
// set the trial response quantities
theModel->setDisp(*U);
theModel->setVel(*Udot);
}
// increment the time to t+deltaT and apply the load
double time = theModel->getCurrentDomainTime();
time += deltaT;
if (theModel->updateDomain(time, deltaT) < 0) {
opserr << "Newmark::newStep() - failed to update the domain\n";
return -4;
}
return 0;
}
int XC::ParallelNumberer::numberDOF(int lastDOF)
{
int result = 0;
// get a pointer to the model & check its not null
AnalysisModel *theModel = this->getAnalysisModelPtr();
Domain *theDomain = 0;
if(theModel) theDomain = theModel->getDomainPtr();
if(theModel == 0 || theDomain == 0)
{
std::cerr << "WARNING XC::ParallelNumberer::numberDOF(int) -";
std::cerr << " - no AnalysisModel.\n";
return -1;
}
if(lastDOF != -1)
{
std::cerr << "WARNING XC::ParallelNumberer::numberDOF(int lastDOF):";
std::cerr << " does not use the lastDOF as requested\n";
}
Graph &theGraph= theModel->getDOFGroupGraph();
// if subdomain, collect graph, send it off, get
// ID back containing dof tags & start id numbers.
if(processID != 0)
{
CommParameters cp(0,*theChannels[0]);
const int numVertex = theGraph.getNumVertex();
/*
static XC::ID test(2); test(0) = processID; test(1) = 25;
theChannel->recvID(0, 0, test);
*/
cp.sendMovable(theGraph,DistributedObj::getDbTagData(),CommMetaData(1));
// recv iD
ID theID(2*numVertex);
cp.receiveID(theID,DistributedObj::getDbTagData(),CommMetaData(2));
// set vertex numbering based on ID received
for(int i=0; i<numVertex; i ++)
{
const int vertexTag= theID(i);
int startID= theID(i+numVertex);
//Vertex *vertexPtr = theGraph.getVertexPtr(vertexTag);
const int dofTag= vertexTag;
DOF_Group *dofPtr= theModel->getDOF_GroupPtr(dofTag);
if(!dofPtr)
{
std::cerr << "WARNING ParallelNumberer::numberDOF - ";
std::cerr << "DOF_Group " << dofTag << "not in XC::AnalysisModel!\n";
result= -4;
}
else
{
const ID &theDOFID= dofPtr->getID();
//std::cerr << "P: " << processID << " dofTag: " << dofTag << " " << "start: " << startID << " " << theDOFID;
const int idSize= theDOFID.Size();
for(int j=0; j<idSize; j++)
if(theDOFID(j) == -2 || theDOFID(j) == -3) dofPtr->setID(j, startID++);
}
//const ID &theDOFID= dofPtr->getID();
}
cp.sendID(theID,DistributedObj::getDbTagData(),CommMetaData(2));
}
else
{
// if XC::main domain, collect graphs from all subdomains,
// merge into 1, number this one, send to subdomains the
// id containing dof tags & start id's.
// for P0 domain determine original vertex and ref tags
const int numVertex= theGraph.getNumVertex();
const int numVertexP0= numVertex;
ID vertexTags(numVertex);
ID vertexRefs(numVertex);
Vertex *vertexPtr;
int loc= 0;
VertexIter &theVertices= theGraph.getVertices();
while((vertexPtr= theVertices()) != 0)
{
vertexTags[loc]= vertexPtr->getTag();
vertexRefs[loc]= vertexPtr->getRef();
loc++;
}
const int numChannels= theChannels.size();
std::vector<ID> theSubdomainIDs(numChannels);
FEM_ObjectBroker theBroker;
// for each subdomain we receive graph, create an XC::ID (to store
// subdomain graph to merged graph vertex mapping and the final
// subdoain graph vertex to startDOF mapping) and finally merge the
// subdomain graph
for(int j=0; j<numChannels; j++)
{
CommParameters cp(0,*theChannels[j]);
Graph theSubGraph;
/*
static XC::ID test(2); test(0)= processID; test(1)= 25;
theChannel->sendID(0, 0, test);
*/
cp.receiveMovable(theSubGraph,DistributedObj::getDbTagData(),CommMetaData(3));
theSubdomainIDs[j]= ID(theSubGraph.getNumVertex()*2);
this->mergeSubGraph(theGraph, theSubGraph, vertexTags, vertexRefs, theSubdomainIDs[j]);
}
// we use graph numberer if one was provided in constructor,
// otherwise we number based on subdomains (all in subdomain 1 numbered first,
// then those in 2 not in 1 and so on till done.
// GraphNumberer *theNumberer= this->getGraphNumbererPtr();
ID theOrderedRefs(theGraph.getNumVertex());
if(theNumberer)
{
// use the supplied graph numberer to number the merged graph
theOrderedRefs= theNumberer->number(theGraph, lastDOF);
}
else
{
// assign numbers based on the subdomains
int loc= 0;
for(int l=0; l<numChannels; l++)
{
const ID &theSubdomain= theSubdomainIDs[l];
int numVertexSubdomain= theSubdomain.Size()/2;
for(int i=0; i<numVertexSubdomain; i++)
{
const int vertexTagMerged= theSubdomain(i+numVertexSubdomain);
// int refTag= vertexRefs[vertexTags.getLocation(vertexTagMerged)];
if(theOrderedRefs.getLocation(vertexTagMerged) == -1)
theOrderedRefs[loc++]= vertexTagMerged;
}
}
// now order those not yet ordered in p0
for(int j=0; j<numVertexP0; j++)
{
int refTagP0= vertexTags[j];
if(theOrderedRefs.getLocation(refTagP0) == -1)
theOrderedRefs[loc++]= refTagP0;
}
}
int count= 0;
for(int i=0; i<theOrderedRefs.Size(); i++)
{
int vertexTag= theOrderedRefs(i);
// int vertexTag= vertexTags[vertexRefs.getLocation(tag)];
Vertex *vertexPtr= theGraph.getVertexPtr(vertexTag);
int numDOF= vertexPtr->getColor();
vertexPtr->setTmp(count);
count += numDOF;
}
// number own dof's
for(int i=0; i<numVertexP0; i++ ) {
int vertexTag= vertexTags(i);
Vertex *vertexPtr= theGraph.getVertexPtr(vertexTag);
int startID= vertexPtr->getTmp();
int dofTag= vertexTag;
DOF_Group *dofPtr;
dofPtr= theModel->getDOF_GroupPtr(dofTag);
if(dofPtr == 0) {
std::cerr << "WARNING XC::ParallelNumberer::numberDOF - ";
std::cerr << "DOF_Group (P0) " << dofTag << "not in XC::AnalysisModel!\n";
result= -4;
} else {
const ID &theDOFID= dofPtr->getID();
int idSize= theDOFID.Size();
for(int j=0; j<idSize; j++)
if(theDOFID(j) == -2 || theDOFID(j) == -3) dofPtr->setID(j, startID++);
}
}
// now given the ordered refs we determine the mapping for each subdomain
// and send the id with the information back to the subdomain, which it uses to order
// it's own graph
for(int k=0; k<numChannels; k++)
{
CommParameters cp(0,*theChannels[k]);
ID &theSubdomain= theSubdomainIDs[k];
int numVertexSubdomain= theSubdomain.Size()/2;
for(int i=0; i<numVertexSubdomain; i++)
{
int vertexTagMerged= theSubdomain[numVertexSubdomain+i];
Vertex *vertexPtr= theGraph.getVertexPtr(vertexTagMerged);
int startDOF= vertexPtr->getTmp();
theSubdomain[i+numVertexSubdomain]= startDOF;
}
cp.sendID(theSubdomain,DistributedObj::getDbTagData(),CommMetaData(4));
cp.receiveID(theSubdomain,DistributedObj::getDbTagData(),CommMetaData(4));
}
}
// iterate through the XC::FE_Element getting them to set their IDs
FE_EleIter &theEle= theModel->getFEs();
FE_Element *elePtr;
while ((elePtr= theEle()) != 0)
elePtr->setID();
return result;
}
int
ArcLength::domainChanged(void)
{
// we first create the Vectors needed
AnalysisModel *theModel = this->getAnalysisModel();
LinearSOE *theLinSOE = this->getLinearSOE();
if (theModel == 0 || theLinSOE == 0) {
opserr << "WARNING ArcLength::update() ";
opserr << "No AnalysisModel or LinearSOE has been set\n";
return -1;
}
int size = theModel->getNumEqn(); // ask model in case N+1 space
if (deltaUhat == 0 || deltaUhat->Size() != size) { // create new Vector
if (deltaUhat != 0)
delete deltaUhat; // delete the old
deltaUhat = new Vector(size);
if (deltaUhat == 0 || deltaUhat->Size() != size) { // check got it
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " deltaUhat Vector of size " << size << endln;
exit(-1);
}
}
if (deltaUbar == 0 || deltaUbar->Size() != size) { // create new Vector
if (deltaUbar != 0)
delete deltaUbar; // delete the old
deltaUbar = new Vector(size);
if (deltaUbar == 0 || deltaUbar->Size() != size) { // check got it
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " deltaUbar Vector of size " << size << endln;
exit(-1);
}
}
if (deltaU == 0 || deltaU->Size() != size) { // create new Vector
if (deltaU != 0)
delete deltaU; // delete the old
deltaU = new Vector(size);
if (deltaU == 0 || deltaU->Size() != size) { // check got it
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " deltaU Vector of size " << size << endln;
exit(-1);
}
}
if (deltaUstep == 0 || deltaUstep->Size() != size) {
if (deltaUstep != 0)
delete deltaUstep;
deltaUstep = new Vector(size);
if (deltaUstep == 0 || deltaUstep->Size() != size) {
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " deltaUstep Vector of size " << size << endln;
exit(-1);
}
}
if (phat == 0 || phat->Size() != size) {
if (phat != 0)
delete phat;
phat = new Vector(size);
if (phat == 0 || phat->Size() != size) {
opserr << "FATAL ArcLength::domainChanged() - ran out of memory for";
opserr << " phat Vector of size " << size << endln;
exit(-1);
}
}
// now we have to determine phat
// do this by incrementing lambda by 1, applying load
// and getting phat from unbalance.
currentLambda = theModel->getCurrentDomainTime();
currentLambda += 1.0;
theModel->applyLoadDomain(currentLambda);
this->formUnbalance(); // NOTE: this assumes unbalance at last was 0
(*phat) = theLinSOE->getB();
currentLambda -= 1.0;
theModel->setCurrentDomainTime(currentLambda);
// check there is a reference load
int haveLoad = 0;
for (int i=0; i<size; i++)
if ( (*phat)(i) != 0.0 ) {
haveLoad = 1;
i = size;
}
if (haveLoad == 0) {
opserr << "WARNING ArcLength::domainChanged() - zero reference load";
return -1;
}
return 0;
}
int HHTHSFixedNumIter::newStep(double _deltaT)
{
deltaT = _deltaT;
if (beta == 0 || gamma == 0 ) {
opserr << "HHTHSFixedNumIter::newStep() - error in variable\n";
opserr << "gamma = " << gamma << " beta = " << beta << endln;
return -1;
}
if (deltaT <= 0.0) {
opserr << "HHTHSFixedNumIter::newStep() - error in variable\n";
opserr << "dT = " << deltaT << endln;
return -2;
}
// get a pointer to the AnalysisModel
AnalysisModel *theModel = this->getAnalysisModel();
// set the constants
c1 = 1.0;
c2 = gamma/(beta*deltaT);
c3 = 1.0/(beta*deltaT*deltaT);
if (U == 0) {
opserr << "HHTHSFixedNumIter::newStep() - domainChange() failed or hasn't been called\n";
return -3;
}
// set response at t to be that at t+deltaT of previous step
(*Utm2) = *Utm1;
(*Utm1) = *Ut;
(*Ut) = *U;
(*Utdot) = *Udot;
(*Utdotdot) = *Udotdot;
// determine new velocities and accelerations at t+deltaT
double a1 = (1.0 - gamma/beta);
double a2 = deltaT*(1.0 - 0.5*gamma/beta);
Udot->addVector(a1, *Utdotdot, a2);
double a3 = -1.0/(beta*deltaT);
double a4 = 1.0 - 0.5/beta;
Udotdot->addVector(a4, *Utdot, a3);
// determine the velocities and accelerations at t+alpha*deltaT
(*Ualphadot) = *Utdot;
Ualphadot->addVector((1.0-alphaF), *Udot, alphaF);
(*Ualphadotdot) = *Utdotdot;
Ualphadotdot->addVector((1.0-alphaI), *Udotdot, alphaI);
// set the trial response quantities
theModel->setVel(*Ualphadot);
theModel->setAccel(*Ualphadotdot);
// increment the time to t+alpha*deltaT and apply the load
double time = theModel->getCurrentDomainTime();
time += alphaF*deltaT;
theModel->applyLoadDomain(time);
return 0;
}
