示例#1
0
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;
}
示例#2
0
int 
DisplacementControl::domainChanged(void)
{
    // we first create the Vectors needed
    AnalysisModel *theModel = this->getAnalysisModel();
    LinearSOE *theLinSOE = this->getLinearSOE();    
    if (theModel == 0 || theLinSOE == 0) {
	opserr << "WARNING DisplacementControl::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 DisplacementControl::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 DisplacementControl::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 DisplacementControl::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 DisplacementControl::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 DisplacementControl::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 DisplacementControl::domainChanged() - zero reference load";
      return -1;
    }

    // lastly we determine the id of the nodal dof
    // EXTRA CODE TO DO SOME ERROR CHECKING REQUIRED
    
    Node *theNodePtr = theDomain->getNode(theNode);
	if (theNodePtr == 0) {
		opserr << "DisplacementControl::domainChanged - no node\n";
		return -1;
	}

    DOF_Group *theGroup = theNodePtr->getDOF_GroupPtr();
	if (theGroup == 0) {
	   return 0;
	}
    const ID &theID = theGroup->getID();
    theDofID = theID(theDof);
    
    return 0;
}