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jacketCreator.C
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jacketCreator.C
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// SPDX-FileCopyrightText: 2023 SAP SE
//
// SPDX-License-Identifier: Apache-2.0
//
// This file is part of FEDEM - https://openfedem.org
////////////////////////////////////////////////////////////////////////////////
#include "assemblyCreators.H"
#include "vpmDB/FmJacket.H"
#include "vpmDB/FmDB.H"
#include "vpmDB/FmBeam.H"
#include "vpmDB/FmTriad.H"
#include "vpmDB/FmBeamProperty.H"
#include "vpmDB/FmRigidJoint.H"
#include "vpmDB/FmFreeJoint.H"
#include "FFlLib/FFlLinkHandler.H"
#include "FFlLib/FFlElementBase.H"
#include "FFlLib/FFlFEParts/FFlPMAT.H"
#include "FFlLib/FFlFEParts/FFlPMASS.H"
#include "FFlLib/FFlFEParts/FFlPBEAMSECTION.H"
#include "FFlLib/FFlFEParts/FFlPBEAMECCENT.H"
#include "FFlLib/FFlFEParts/FFlPORIENT.H"
#include "FFlLib/FFlFEParts/FFlPSPRING.H"
#include "FFaLib/FFaOS/FFaFilePath.H"
#include "FFaLib/FFaAlgebra/FFaMath.H"
#include "FFaLib/FFaString/FFaStringExt.H"
#include "FFaLib/FFaDefinitions/FFaMsg.H"
void FWP::createJacket (const FFlLinkHandler* jl, const std::string& name,
const double* Morison, int IDoffset)
{
double Ca = Morison[0];
double Cm = Morison[1];
double Cd = Morison[2];
FmJacket* jacket = new FmJacket();
jacket->setUserDescription(FFaFilePath::getBaseName(name,true));
jacket->connect();
std::vector<int> assID(1,jacket->getID());
std::map<FmBeamProperty*,FmBeamProperty*>::const_iterator cit;
std::map<FmBeamProperty*,FmBeamProperty*> dupCS;
int newNodeID = jl->getNewNodeID();
bool addRigid = true;
int nRigid = 0, nSpring = 0;
std::vector<FmFreeJoint*> groundSpr;
// Create a beam object for each beam element in the provided FE model
bool haveShells = false;
bool haveSolids = false;
int nBeam = 0, nTriad = 0;
std::map<std::string,int> ignored;
ListUI <<"\n===> Generating jacket model\n";
for (ElementsCIter eit = jl->elementsBegin(); eit != jl->elementsEnd(); ++eit)
{
const std::string& elmtype = (*eit)->getTypeName();
if (elmtype == "BEAM2")
{
FFlPMAT* pmat = dynamic_cast<FFlPMAT*>((*eit)->getAttribute("PMAT"));
if (!pmat)
{
ListUI <<" ==> Ignoring beam element "<< (*eit)->getID()
<<" without material properties.\n";
continue;
}
FFlPBEAMSECTION* psec = dynamic_cast<FFlPBEAMSECTION*>((*eit)->getAttribute("PBEAMSECTION"));
if (!psec)
{
ListUI <<" ==> Ignoring beam element "<< (*eit)->getID()
<<" without cross section properties.\n";
continue;
}
// Check if these properties already have been created
FmBase* bmat = FmDB::findID(FmMaterialProperty::getClassTypeID(),
IDoffset+pmat->getID(),assID);
FmBase* bprop = FmDB::findID(FmBeamProperty::getClassTypeID(),
IDoffset+psec->getID(),assID);
FmMaterialProperty* elmMat;
if (bmat)
elmMat = static_cast<FmMaterialProperty*>(bmat);
else
{
// Create material property object
elmMat = new FmMaterialProperty();
elmMat->setParentAssembly(jacket);
elmMat->setID(IDoffset+pmat->getID());
elmMat->setUserDescription(pmat->getName());
elmMat->connect();
elmMat->updateProperties(pmat->materialDensity.getValue(),
pmat->youngsModule.getValue(),
pmat->shearModule.getValue());
}
FmBeamProperty* elmProp;
if (bprop)
{
elmProp = static_cast<FmBeamProperty*>(bprop);
if (elmProp->material.isNull())
elmProp->material.setRef(elmMat);
else if (elmProp->material.getPointer() != elmMat)
{
// This cross section property already exists,
// but it refers to another material.
for (cit = dupCS.begin(); cit != dupCS.end(); ++cit)
if (cit->second == elmProp && cit->first->material.getPointer() == elmMat)
break;
if (cit != dupCS.end())
elmProp = cit->first; // Found a duplicate with this material
else
{
// Create a new copy of it for the new material reference
ListUI <<" -> Duplicating "<< elmProp->getIdString(true) <<"\n";
FmBeamProperty* newProp = new FmBeamProperty();
newProp->clone(elmProp,FmBase::SHALLOW);
newProp->setParentAssembly(jacket);
newProp->material.setRef(elmMat);
// Do not connect these objects yet, to avoid ID conflicts
newProp->setID(0);
newProp->setUserDescription("Copy of " + elmProp->getInfoString());
// Store reference to the 'master' cross section
dupCS[newProp] = elmProp;
elmProp = newProp;
}
}
}
else
{
// Create beam cross section object
elmProp = new FmBeamProperty();
elmProp->setParentAssembly(jacket);
elmProp->setID(IDoffset+psec->getID());
elmProp->setUserDescription(psec->getName());
elmProp->connect();
elmProp->material.setRef(elmMat);
if (psec->Iy.getValue() == psec->Iz.getValue())
{
// Extract cross sectional parameters (assuming a circular pipe)
double A = psec->crossSectionArea.getValue();
double I2oA = (psec->Iy.getValue() + psec->Iz.getValue())/A;
double Ao2Pi = 0.5*A/M_PI;
double D = 2.0*sqrt(I2oA + Ao2Pi); // Outer diameter
double t = 0.5*D - sqrt(I2oA - Ao2Pi); // Wall thickness
elmProp->crossSectionType.setValue(FmBeamProperty::PIPE);
elmProp->Do.setValue(D);
elmProp->Di.setValue(D-2.0*t);
elmProp->Dd.setValue(D);
elmProp->Db.setValue(D);
elmProp->Ca.setValue(Ca);
elmProp->Cm.setValue(Cm);
elmProp->Cd.setValue(Cd);
elmProp->hydroToggle.setValue(true);
elmProp->updateDependentValues();
}
else
{
// Use generic cross section (unknown geometry)
double A = psec->crossSectionArea.getValue();
double E = elmMat->E.getValue();
double G = elmMat->G.getValue();
double rho = elmMat->Rho.getValue();
// Note: The Iy and Iz values are swapped here.
// Probably there is a defintion mismatch somewere....
// TODO: Check this and find out why and fix properly.
elmProp->crossSectionType.setValue(FmBeamProperty::GENERIC);
elmProp->A.setValue(A);
elmProp->Iy.setValue(psec->Iz.getValue()); // y,z swapped
elmProp->Iz.setValue(psec->Iy.getValue()); // y,z swapped!
elmProp->Ip.setValue(psec->Iy.getValue() + psec->Iz.getValue());
elmProp->EA.setValue(E*A);
elmProp->EI.getValue().first = E*psec->Iz.getValue(); // y,z swapped!
elmProp->EI.getValue().second = E*psec->Iy.getValue(); // z,y swapped!
if (psec->Kxy.getValue() > 0.0)
elmProp->GAs.getValue().second = G*A/psec->Kxy.getValue(); // y,z swapped!
if (psec->Kxz.getValue() > 0.0)
elmProp->GAs.getValue().first = G*A/psec->Kxz.getValue(); // y,z swapped!
elmProp->GIt.setValue(G*psec->It.getValue());
elmProp->Mass.setValue(rho*A);
}
}
// Create a triad at each end of the beam element
FmTriad* t1 = FmTriad::createAtNode((*eit)->getNode(1),jacket,IDoffset,nTriad);
FmTriad* t2 = FmTriad::createAtNode((*eit)->getNode(2),jacket,IDoffset,nTriad);
FaVec3 X1 = t1->getGlobalTranslation();
FaVec3 X2 = t2->getGlobalTranslation();
// Check for eccentricities
double massScale = 1.0;
FFlPBEAMECCENT* pecc = dynamic_cast<FFlPBEAMECCENT*>((*eit)->getAttribute("PBEAMECCENT"));
if (pecc)
{
if (addRigid)
{
// Create rigid joints connecting the node (master Triad) and beam end
double tol = 1.0e-6*(X2-X1).length();
if (!pecc->node1Offset.getValue().isZero(tol))
{
FmTriad* s1 = new FmTriad(X1 + pecc->node1Offset.getValue());
s1->setParentAssembly(jacket);
s1->setID(IDoffset+(newNodeID++));
s1->connect();
nTriad++;
FmRigidJoint* joint = new FmRigidJoint();
joint->setParentAssembly(jacket);
joint->setAsMasterTriad(t1);
joint->setAsSlaveTriad(s1);
joint->updateLocation();
joint->connect();
nRigid++;
t1 = s1;
}
if (!pecc->node2Offset.getValue().isZero(tol))
{
FmTriad* s2 = new FmTriad(X2 + pecc->node2Offset.getValue());
s2->setParentAssembly(jacket);
s2->setID(IDoffset+(newNodeID++));
s2->connect();
nTriad++;
FmRigidJoint* joint = new FmRigidJoint();
joint->setParentAssembly(jacket);
joint->setAsMasterTriad(t2);
joint->setAsSlaveTriad(s2);
joint->updateLocation();
joint->connect();
nRigid++;
t2 = s2;
}
}
else
{
// Account for the eccentricities only be scaling the mass
// (ignoring the stiffness difference here)
double actualLength = (X2-X1).length();
double effectiveLen = ((X2+pecc->node2Offset.getValue()) -
(X1+pecc->node1Offset.getValue())).length();
massScale = effectiveLen/actualLength;
}
}
// Create a beam element
FmBeam* beam = new FmBeam();
beam->setParentAssembly(jacket);
beam->setID(IDoffset+(*eit)->getID());
if (!psec->getName().empty())
beam->setUserDescription(psec->getName());
beam->massScale.setValue(massScale);
beam->connect(t1,t2);
beam->setProperty(elmProp);
// Define the local element coordinate system
FFlPORIENT* bo = dynamic_cast<FFlPORIENT*>((*eit)->getAttribute("PORIENT"));
if (bo && !bo->directionVector.getValue().isZero())
beam->setOrientation(bo->directionVector.getValue());
nBeam++;
}
else if (elmtype == "CMASS")
{
FFlPMASS* pmass = dynamic_cast<FFlPMASS*>((*eit)->getAttribute("PMASS"));
if (!pmass)
{
ListUI <<" ==> Ignoring mass element "<< (*eit)->getID()
<<" without properties.\n";
continue;
}
// Create a triad for the point mass
FmTriad* tr = FmTriad::createAtNode((*eit)->getNode(1),jacket,IDoffset,nTriad);
const std::vector<double>& M = pmass->M.getValue();
size_t i, j, k;
for (j = k = 0; j < 6 && k < M.size(); j++, k++)
{
for (i = 0; i < j && k < M.size(); i++, k++)
if (M[k] != 0.0)
ListUI <<" ** Warning: Off-diagonal nodal mass M("
<< i+1 <<","<< j+1 <<")="<< M[k] <<" is ignored.\n";
tr->setAddMass(j,M[k]);
}
tr->onChanged(); // to update Triad icon
}
else if (elmtype == "RSPRING")
{
FFlPSPRING* spr = dynamic_cast<FFlPSPRING*>((*eit)->getAttribute("PSPRING"));
if (!spr)
{
ListUI <<" ==> Ignoring spring element "<< (*eit)->getID()
<<" without properties.\n";
continue;
}
// Create a triad for the spring
FmTriad* t1 = FmTriad::createAtNode((*eit)->getNode(1),jacket,IDoffset,nTriad);
// Create the second triad, unless it is a ground spring
FmTriad* t2 = FmTriad::createAtNode((*eit)->getNode(2),jacket,IDoffset,nTriad);
// Create a free joint representing the spring element
FmFreeJoint* joint = new FmFreeJoint();
joint->setParentAssembly(jacket);
joint->setID(IDoffset+(*eit)->getID());
joint->setAsSlaveTriad(t1);
if (t2)
{
joint->setAsMasterTriad(t2);
joint->updateLocation();
t1->onChanged();
t2->onChanged();
}
else
groundSpr.push_back(joint); // Add grounded master triad later
// Find the diagonal stiffness terms
size_t i, j, k;
double tol = 0.0;
for (j = k = 0; j < 6; k += 6-(j++))
{
joint->setStatusForDOF(j,FmHasDOFsBase::SPRING_CONSTRAINED);
joint->getSpringAtDOF(j,true)->setInitStiff(spr->K[k].getValue());
tol += fabs(spr->K[k].getValue());
}
// Find the off-diagonal stiffness terms, if any, upper diagonal only
std::string description("#GlobalSpring"), K(" #K__ ");
tol *= 1.666666666666667e-16;
for (i = 0, k = 1, K[3] = '1'; i < 6; i++, k++, K[3]++)
for (j = i+1, K[4] = K[3]+1; j < 6; j++, k++, K[4]++)
if (fabs(spr->K[k].getValue()) > tol)
description += K + FFaNumStr(spr->K[k].getValue());
joint->setUserDescription(description);
joint->connect();
nSpring++;
}
else if (ignored.find(elmtype) == ignored.end())
{
ignored[elmtype] = 1;
if (elmtype == "TRI3" || elmtype == "TRI6" ||
elmtype == "QUAD4" || elmtype == "QUAD8")
haveShells = true;
else if (elmtype == "TET4" || elmtype == "TET10" ||
elmtype == "WEDG6" || elmtype == "WEDG15" ||
elmtype == "HEX8" || elmtype == "HEX20")
haveSolids = true;
}
else
ignored[elmtype] ++;
}
// Now create master triads for the grounded springs
for (size_t i = 0; i < groundSpr.size(); i++)
{
FmTriad* slave = groundSpr[i]->getSlaveTriad();
FmTriad* master = new FmTriad(slave->getGlobalTranslation());
master->setParentAssembly(jacket);
master->connect(FmDB::getEarthLink());
groundSpr[i]->setAsMasterTriad(master);
groundSpr[i]->updateLocation();
slave->onChanged();
master->onChanged();
nTriad++;
}
// Now connect all duplicated cross section entries
for (cit = dupCS.begin(); cit != dupCS.end(); ++cit)
cit->first->connect();
ListUI <<" -> Created "<< nBeam <<" beam elements and "<< nTriad <<" new triads.\n";
if (nRigid > 0)
ListUI <<" Created "<< nRigid <<" rigid joints (for beam eccentricities).\n";
if (nSpring > 0)
ListUI <<" Created "<< nSpring <<" global spring elements.\n";
for (const std::pair<const std::string,int>& it : ignored)
ListUI <<" -> Ignored "<< it.second <<" "<< it.first <<" elements.\n";
if (haveShells || haveSolids)
{
std::string warning("This FE model contains ");
warning += haveShells ? "shell" : "solid";
warning += " elements.\nThese elements have been ignored from this import.\n";
FFaMsg::dialog(warning + "See the Output List view for details.\n"
"It is recommended to organize the shell/volume elements of the model\n"
"in separate FE data files, and import them as regular FE parts instead.",
FFaMsg::WARNING);
}
if (FmDB::hasObjectsOfType(FmLink::getClassTypeID(),jacket->getHeadMap()))
FmDB::displayAll(*jacket->getHeadMap());
else
{
FFaMsg::list(" ==> Empty jacket assembly, deleted.\n",true);
jacket->erase();
}
}