#include <rodj.h>

Inheritance diagram for ViscoElasticRod:

Collaboration diagram for ViscoElasticRod:

Public Member Functions
	ViscoElasticRod (unsigned int uL, const DofOwner pDO, const ConstitutiveLaw1D pCL, const StructDispNode pN1, const StructDispNode pN2, doublereal dLength, flag fOut)

virtual	~ViscoElasticRod (void)

virtual void	AfterConvergence (const VectorHandler &X, const VectorHandler &XP)

virtual VariableSubMatrixHandler &	AssJac (VariableSubMatrixHandler &WorkMat, doublereal dCoef, const VectorHandler &XCurr, const VectorHandler &XPrimeCurr)

virtual SubVectorHandler &	AssRes (SubVectorHandler &WorkVec, doublereal dCoef, const VectorHandler &XCurr, const VectorHandler &XPrimeCurr)

virtual void	InitialWorkSpaceDim (integer piNumRows, integer piNumCols) const

virtual VariableSubMatrixHandler &	InitialAssJac (VariableSubMatrixHandler &WorkMat, const VectorHandler &XCurr)

virtual SubVectorHandler &	InitialAssRes (SubVectorHandler &WorkVec, const VectorHandler &XCurr)

Public Member Functions inherited from Elem
	Elem (unsigned int uL, flag fOut)

virtual	~Elem (void)

virtual std::ostream &	DescribeDof (std::ostream &out, const char *prefix="", bool bInitial=false) const

virtual void	DescribeDof (std::vector< std::string > &desc, bool bInitial=false, int i=-1) const

virtual std::ostream &	DescribeEq (std::ostream &out, const char *prefix="", bool bInitial=false) const

virtual void	DescribeEq (std::vector< std::string > &desc, bool bInitial=false, int i=-1) const

virtual DofOrder::Order	GetDofType (unsigned int) const

void	SetInverseDynamicsFlags (unsigned uIDF)

unsigned	GetInverseDynamicsFlags (void) const

bool	bIsErgonomy (void) const

bool	bIsRightHandSide (void) const

virtual int	GetNumConnectedNodes (void) const

Public Member Functions inherited from WithLabel
	WithLabel (unsigned int uL=0, const std::string &sN="")

virtual	~WithLabel (void)

void	PutLabel (unsigned int uL)

void	PutName (const std::string &sN)

unsigned int	GetLabel (void) const

const std::string &	GetName (void) const

Public Member Functions inherited from SimulationEntity
	SimulationEntity (void)

virtual	~SimulationEntity (void)

virtual bool	bIsValidIndex (unsigned int i) const

virtual DofOrder::Order	GetEqType (unsigned int i) const

virtual Hint *	ParseHint (DataManager pDM, const char s) const

virtual void	BeforePredict (VectorHandler &, VectorHandler &, VectorHandler &, VectorHandler &) const

virtual void	AfterPredict (VectorHandler &X, VectorHandler &XP)

virtual void	Update (const VectorHandler &XCurr, const VectorHandler &XPrimeCurr)

virtual void	DerivativesUpdate (const VectorHandler &XCurr, const VectorHandler &XPrimeCurr)

virtual void	ReadInitialState (MBDynParser &HP)

Public Member Functions inherited from ToBeOutput
	ToBeOutput (flag fOut=fDefaultOut)

virtual	~ToBeOutput (void)

virtual void	Output (OutputHandler &OH, const VectorHandler &X, const VectorHandler &XP) const

virtual flag	fToBeOutput (void) const

virtual bool	bToBeOutput (void) const

virtual void	SetOutputFlag (flag f=flag(1))

Public Member Functions inherited from Rod
	Rod (unsigned int uL, const DofOwner pDO, const ConstitutiveLaw1D pCL, const StructDispNode pN1, const StructDispNode pN2, doublereal dLength, flag fOut, bool bHasOffsets=0)

virtual	~Rod (void)

virtual Joint::Type	GetJointType (void) const

virtual std::ostream &	Restart (std::ostream &out) const

virtual unsigned int	iGetNumDof (void) const

virtual void	WorkSpaceDim (integer piNumRows, integer piNumCols) const

virtual void	AssMats (VariableSubMatrixHandler &WorkMatA, VariableSubMatrixHandler &WorkMatB, const VectorHandler &XCurr, const VectorHandler &XPrimeCurr)

virtual void	OutputPrepare (OutputHandler &OH)

virtual void	Output (OutputHandler &OH) const

virtual unsigned int	iGetInitialNumDof (void) const

virtual bool	bInverseDynamics (void) const

VariableSubMatrixHandler &	AssJac (VariableSubMatrixHandler &WorkMat, const VectorHandler &XCurr)

SubVectorHandler &	AssRes (SubVectorHandler &WorkVec, const VectorHandler &XCurr, const VectorHandler &XPrimeCurr, const VectorHandler &XPrimePrimeCurr, InverseDynamics::Order iOrder=InverseDynamics::INVERSE_DYNAMICS)

void	Update (const VectorHandler &XCurr, InverseDynamics::Order iOrder=InverseDynamics::INVERSE_DYNAMICS)

virtual void	AfterConvergence (const VectorHandler &X, const VectorHandler &XP, const VectorHandler &XPP)

virtual void	GetConnectedNodes (std::vector< const Node * > &connectedNodes) const

virtual unsigned int	iGetNumPrivData (void) const

virtual unsigned int	iGetPrivDataIdx (const char *s) const

virtual doublereal	dGetPrivData (unsigned int i) const

Public Member Functions inherited from Joint
	Joint (unsigned int uL, const DofOwner *pD, flag fOut)

virtual	~Joint (void)

virtual Elem::Type	GetElemType (void) const

std::ostream &	Output (std::ostream &out, const char *sJointName, unsigned int uLabel, const Vec3 &FLocal, const Vec3 &MLocal, const Vec3 &FGlobal, const Vec3 &MGlobal) const

virtual void	SetInitialValue (VectorHandler &)

virtual void	SetValue (DataManager pDM, VectorHandler &, VectorHandler &, SimulationEntity::Hints ph=0)

bool	bIsPrescribedMotion (void) const

bool	bIsTorque (void) const

Public Member Functions inherited from ElemGravityOwner
	ElemGravityOwner (unsigned int uL, flag fOut)

virtual	~ElemGravityOwner (void)

virtual doublereal	dGetM (void) const

Vec3	GetS (void) const

Mat3x3	GetJ (void) const

Vec3	GetB (void) const

Vec3	GetG (void) const

Public Member Functions inherited from GravityOwner
	GravityOwner (void)

virtual	~GravityOwner (void)

void	PutGravity (const Gravity *pG)

virtual bool	bGetGravity (const Vec3 &X, Vec3 &Acc) const

Public Member Functions inherited from ElemWithDofs
	ElemWithDofs (unsigned int uL, const DofOwner *pDO, flag fOut)

virtual	~ElemWithDofs (void)

Public Member Functions inherited from DofOwnerOwner
	DofOwnerOwner (const DofOwner *pDO)

virtual	~DofOwnerOwner ()

virtual const DofOwner *	pGetDofOwner (void) const

virtual integer	iGetFirstIndex (void) const

Public Member Functions inherited from InitialAssemblyElem
	InitialAssemblyElem (unsigned int uL, flag fOut)

virtual	~InitialAssemblyElem (void)

Public Member Functions inherited from SubjectToInitialAssembly
	SubjectToInitialAssembly (void)

virtual	~SubjectToInitialAssembly (void)

Public Member Functions inherited from ConstitutiveLawOwner< T, Tder >
	ConstitutiveLawOwner (const ConstitutiveLaw< T, Tder > *pCL)

virtual	~ConstitutiveLawOwner (void)

ConstitutiveLaw< T, Tder > *	pGetConstLaw (void) const

void	Update (const T &Eps, const T &EpsPrime=mb_zero< T >())

void	AfterConvergence (const T &Eps, const T &EpsPrime=mb_zero< T >())

const T &	GetF (void) const

const Tder &	GetFDE (void) const

const Tder &	GetFDEPrime (void) const

virtual std::ostream &	DescribeDof (std::ostream &out, const char *prefix="", bool bInitial=false) const

virtual void	DescribeDof (std::vector< std::string > &desc, bool bInitial=false, int i=-1) const

virtual std::ostream &	DescribeEq (std::ostream &out, const char *prefix="", bool bInitial=false) const

virtual void	DescribeEq (std::vector< std::string > &desc, bool bInitial=false, int i=-1) const

virtual DofOrder::Order	GetDofType (unsigned int i) const

virtual std::ostream &	OutputAppend (std::ostream &out) const

Additional Inherited Members
Public Types inherited from Elem
enum	Type { UNKNOWN = -1, AIRPROPERTIES = 0, INDUCEDVELOCITY, AUTOMATICSTRUCTURAL, GRAVITY, BODY, JOINT, JOINT_REGULARIZATION, BEAM, PLATE, FORCE, INERTIA, ELECTRICBULK, ELECTRIC, THERMAL, HYDRAULIC, BULK, LOADABLE, DRIVEN, EXTERNAL, AEROMODAL, AERODYNAMIC, GENEL, SOCKETSTREAM_OUTPUT, RTAI_OUTPUT = SOCKETSTREAM_OUTPUT, LASTELEMTYPE }

Public Types inherited from SimulationEntity
typedef std::vector< Hint * >	Hints

Public Types inherited from ToBeOutput
enum	{ OUTPUT = 0x1U, OUTPUT_MASK = 0xFU, OUTPUT_PRIVATE = 0x10U, OUTPUT_PRIVATE_MASK = ~OUTPUT_MASK }

Public Types inherited from Joint
enum	Type { UNKNOWN = -1, DISTANCE = 0, DISTANCEWITHOFFSET, CLAMP, SPHERICALHINGE, PIN, UNIVERSALHINGE, UNIVERSALROTATION, UNIVERSALPIN, PLANEHINGE, PLANEROTATION, PLANEPIN, AXIALROTATION, PLANEDISP, PLANEDISPPIN, INPLANE, INPLANECONTACT, J_INLINE, ROD, RODBEZIER, DEFORMABLEHINGE, DEFORMABLEDISPJOINT, DEFORMABLEJOINT, DEFORMABLEAXIALJOINT, VISCOUSBODY, LINEARVELOCITY, ANGULARVELOCITY, LINEARACCELERATION, ANGULARACCELERATION, PRISMATIC, DRIVEHINGE, DRIVEDISP, DRIVEDISPPIN, IMPOSEDORIENTATION, IMPOSEDDISP, IMPOSEDDISPPIN, IMPOSEDKINEMATICS, BEAMSLIDER, BRAKE, GIMBAL, POINT_SURFACE_CONTACT, TOTALJOINT, TOTALPINJOINT, TOTALEQUATION, TOTALREACTION, MODAL, SCREWJOINT, LASTJOINTTYPE }

Protected Member Functions inherited from Rod
virtual doublereal	dCalcEpsilon (void)

void	AssMat (FullSubMatrixHandler &WorkMat, doublereal dCoef=1.)

void	AssVec (SubVectorHandler &WorkVec)

Protected Member Functions inherited from Joint
virtual void	OutputPrepare_int (const std::string &type, OutputHandler &OH, std::string &name)

Protected Member Functions inherited from ElemGravityOwner
virtual Vec3	GetS_int (void) const

virtual Mat3x3	GetJ_int (void) const

virtual Vec3	GetB_int (void) const

virtual Vec3	GetG_int (void) const

Protected Attributes inherited from WithLabel
unsigned int	uLabel

std::string	sName

Protected Attributes inherited from ToBeOutput
flag	fOutput

Protected Attributes inherited from Rod
const StructDispNode *	pNode1

const StructDispNode *	pNode2

doublereal	dL0

Vec3	v

doublereal	dElle

doublereal	dEpsilon

doublereal	dEpsilonPrime

Protected Attributes inherited from GravityOwner
Gravity *	pGravity

Protected Attributes inherited from ConstitutiveLawOwner< T, Tder >
ConstitutiveLaw< T, Tder > *	pConstLaw

Detailed Description

Definition at line 207 of file rodj.h.

Constructor & Destructor Documentation

ViscoElasticRod::ViscoElasticRod	(	unsigned int	uL,
		const DofOwner *	pDO,
		const ConstitutiveLaw1D *	pCL,
		const StructDispNode *	pN1,
		const StructDispNode *	pN2,
		doublereal	dLength,
		flag	fOut
	)

Definition at line 526 of file rodj.cc.

References NO_OP.

 : Elem(uL, fOut),
 Rod(uL, pDO, pCL, pN1, pN2, dLength, fOut)
 {
         NO_OP;
 }

ViscoElasticRod::~ViscoElasticRod ( void )

virtual

Definition at line 539 of file rodj.cc.

References NO_OP.

 {
         NO_OP;
 }

Member Function Documentation

void ViscoElasticRod::AfterConvergence	(	const VectorHandler &	X,
		const VectorHandler &	XP
	)

virtual

Reimplemented from Rod.

Definition at line 545 of file rodj.cc.

References ConstitutiveLawOwner< T, Tder >::AfterConvergence(), Rod::dEpsilon, and Rod::dEpsilonPrime.

 {
         ConstitutiveLaw1DOwner::AfterConvergence(dEpsilon, dEpsilonPrime);
 }

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VariableSubMatrixHandler & ViscoElasticRod::AssJac	(	VariableSubMatrixHandler &	WorkMat,
		doublereal	dCoef,
		const VectorHandler &	XCurr,
		const VectorHandler &	XPrimeCurr
	)

virtual

Implements Elem.

Definition at line 552 of file rodj.cc.

References FullSubMatrixHandler::Add(), Vec3::Cross(), DEBUGCOUT, Rod::dElle, Rod::dL0, Vec3::Dot(), ConstitutiveLawOwner< T, Tder >::GetF(), ConstitutiveLawOwner< T, Tder >::GetFDE(), ConstitutiveLawOwner< T, Tder >::GetFDEPrime(), WithLabel::GetLabel(), StructDispNode::GetVCurr(), StructDispNode::iGetFirstMomentumIndex(), StructDispNode::iGetFirstPositionIndex(), MatCrossCross, MBDYN_EXCEPT_ARGS, Rod::pNode1, Rod::pNode2, FullSubMatrixHandler::PutColIndex(), FullSubMatrixHandler::PutRowIndex(), FullSubMatrixHandler::ResizeReset(), VariableSubMatrixHandler::SetFull(), grad::sqrt(), FullSubMatrixHandler::Sub(), Vec3::Tens(), Rod::v, and Elem::WorkSpaceDim().

 {
         DEBUGCOUT("Entering ViscoElasticRod::AssJac()" << std::endl);
 
         FullSubMatrixHandler& WM = WorkMat.SetFull();
 
         /* Dimensiona e resetta la matrice di lavoro */
         integer iNumRows = 0;
         integer iNumCols = 0;
         WorkSpaceDim(&iNumRows, &iNumCols);
         WM.ResizeReset(iNumRows, iNumCols);
 
         /* Recupera gli indici */
         integer iNode1FirstPosIndex = pNode1->iGetFirstPositionIndex();
         integer iNode1FirstMomIndex = pNode1->iGetFirstMomentumIndex();
         integer iNode2FirstPosIndex = pNode2->iGetFirstPositionIndex();
         integer iNode2FirstMomIndex = pNode2->iGetFirstMomentumIndex();
 
         /* Setta gli indici della matrice */
         for (int iCnt = 1; iCnt <= 3; iCnt++) {
                 WM.PutRowIndex(iCnt, iNode1FirstMomIndex + iCnt);
                 WM.PutColIndex(iCnt, iNode1FirstPosIndex + iCnt);
                 WM.PutRowIndex(3 + iCnt, iNode2FirstMomIndex + iCnt);
                 WM.PutColIndex(3 + iCnt, iNode2FirstPosIndex + iCnt);
         }
 
         /* v = x2-x1 */
         /* v(pNode2->GetXCurr()-pNode1->GetXCurr()); */
         doublereal dCross = v.Dot();
 
         /* Verifica che la distanza non sia nulla */
         if (dCross <= std::numeric_limits<doublereal>::epsilon()) {
                 silent_cerr("ViscoElasticRod(" << GetLabel() << "): "
                         "null distance between nodes " << pNode1->GetLabel()
                         << " and " << pNode2->GetLabel() << std::endl);
                 throw ErrNullNorm(MBDYN_EXCEPT_ARGS);
         }
 
         /* Lunghezza corrente */
         dElle = sqrt(dCross);
 
         /* Velocita' di deformazione */
         Vec3 vPrime(pNode2->GetVCurr()-pNode1->GetVCurr());
 
         /* Forza e slopes */
         doublereal dF = GetF();
         doublereal dFDE = GetFDE();
         doublereal dFDEPrime = GetFDEPrime();
 
         Mat3x3 K(Mat3x3( MatCrossCross, v, v*((-dF*dCoef)/(dElle*dCross)) )
                 + v.Tens( v*((dFDE*dCoef+dFDEPrime)/(dL0*dCross)) )
                 + v.Tens( v.Cross( vPrime.Cross( v*((dFDEPrime*dCoef)/(dL0*dCross*dCross)) ) ) ));
 
         /* Termini diagonali */
         WM.Add(1, 1, K);
         WM.Add(4, 4, K);
 
         /* termini extradiagonali */
         WM.Sub(1, 4, K);
         WM.Sub(4, 1, K);
 
         return WorkMat;
 }

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SubVectorHandler & ViscoElasticRod::AssRes	(	SubVectorHandler &	WorkVec,
		doublereal	dCoef,
		const VectorHandler &	XCurr,
		const VectorHandler &	XPrimeCurr
	)

virtual

Implements Elem.

Definition at line 620 of file rodj.cc.

References VectorHandler::Add(), Rod::dCalcEpsilon(), DEBUGCOUT, Rod::dElle, Rod::dEpsilon, Rod::dEpsilonPrime, Rod::dL0, Vec3::Dot(), ConstitutiveLawOwner< T, Tder >::GetF(), WithLabel::GetLabel(), StructDispNode::GetVCurr(), StructDispNode::GetXCurr(), StructDispNode::iGetFirstMomentumIndex(), MBDYN_EXCEPT_ARGS, Rod::pNode1, Rod::pNode2, SubVectorHandler::PutRowIndex(), VectorHandler::ResizeReset(), grad::sqrt(), VectorHandler::Sub(), ConstitutiveLawOwner< T, Tder >::Update(), Rod::v, and Elem::WorkSpaceDim().

 {
         DEBUGCOUT("Entering ViscoElasticRod::AssRes()" << std::endl);
 
         /* Dimensiona e resetta la matrice di lavoro */
         integer iNumRows = 0;
         integer iNumCols = 0;
         WorkSpaceDim(&iNumRows, &iNumCols);
         WorkVec.ResizeReset(iNumRows);
 
         /* Indici */
         integer iNode1FirstMomIndex = pNode1->iGetFirstMomentumIndex();
         integer iNode2FirstMomIndex = pNode2->iGetFirstMomentumIndex();
 
         /* Setta gli indici */
         for (int iCnt = 1; iCnt <= 3; iCnt++) {
                 WorkVec.PutRowIndex(iCnt, iNode1FirstMomIndex + iCnt);
                 WorkVec.PutRowIndex(3 + iCnt, iNode2FirstMomIndex + iCnt);
         }
 
         /* v = x2-x1 */
         v = pNode2->GetXCurr()-pNode1->GetXCurr();
         doublereal dCross = v.Dot();
 
         /* Verifica che la distanza non sia nulla */
         if (dCross <= std::numeric_limits<doublereal>::epsilon()) {
                 silent_cerr("ViscoElasticRod(" << GetLabel() << "): "
                         "null distance between nodes " << pNode1->GetLabel()
                         << " and " << pNode2->GetLabel() << std::endl);
                 throw ErrNullNorm(MBDYN_EXCEPT_ARGS);
         }
 
         /* Lunghezza corrente */
         dElle = sqrt(dCross);
 
         /* Deformazione */
         dEpsilon = dCalcEpsilon();
 
         /* Velocita' di deformazione */
         Vec3 vPrime(pNode2->GetVCurr() - pNode1->GetVCurr());
         dEpsilonPrime = (v.Dot(vPrime))/(dElle*dL0);
 
         /* Ampiezza della forza */
         bool ChangeJac(false);
         try {
                 ConstitutiveLaw1DOwner::Update(dEpsilon, dEpsilonPrime);
 
         } catch (Elem::ChangedEquationStructure) {
                 ChangeJac = true;
         }
         doublereal dF = GetF();
 
         /* Vettore forza */
         Vec3 F(v*(dF/dElle));
 
         WorkVec.Add(1, F);
         WorkVec.Sub(4, F);
 
         if (ChangeJac) {
                 throw Elem::ChangedEquationStructure(MBDYN_EXCEPT_ARGS);
         }
 
         return WorkVec;
 }

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VariableSubMatrixHandler & ViscoElasticRod::InitialAssJac	(	VariableSubMatrixHandler &	WorkMat,
		const VectorHandler &	XCurr
	)

virtual

Reimplemented from Rod.

Definition at line 689 of file rodj.cc.

References FullSubMatrixHandler::Add(), Vec3::Cross(), DEBUGCOUT, Rod::dElle, Rod::dL0, Vec3::Dot(), ConstitutiveLawOwner< T, Tder >::GetF(), ConstitutiveLawOwner< T, Tder >::GetFDE(), ConstitutiveLawOwner< T, Tder >::GetFDEPrime(), WithLabel::GetLabel(), StructDispNode::GetVCurr(), StructDispNode::iGetFirstPositionIndex(), InitialWorkSpaceDim(), MatCrossCross, MBDYN_EXCEPT_ARGS, Rod::pNode1, Rod::pNode2, FullSubMatrixHandler::PutColIndex(), FullSubMatrixHandler::PutRowIndex(), FullSubMatrixHandler::ResizeReset(), VariableSubMatrixHandler::SetFull(), grad::sqrt(), FullSubMatrixHandler::Sub(), Vec3::Tens(), and Rod::v.

 {
         DEBUGCOUT("Entering ViscoElasticRod::InitialAssJac()" << std::endl);
 
         FullSubMatrixHandler& WM = WorkMat.SetFull();
 
         /* Dimensiona e resetta la matrice di lavoro */
         integer iNumRows = 0;
         integer iNumCols = 0;
         InitialWorkSpaceDim(&iNumRows, &iNumCols);
         WM.ResizeReset(iNumRows, iNumCols);
 
         /* Recupera gli indici */
         integer iNode1FirstPosIndex = pNode1->iGetFirstPositionIndex();
         integer iNode1FirstVelIndex = iNode1FirstPosIndex+6;
         integer iNode2FirstPosIndex = pNode2->iGetFirstPositionIndex();
         integer iNode2FirstVelIndex = iNode2FirstPosIndex+6;
 
         /* Setta gli indici della matrice */
         for (int iCnt = 1; iCnt <= 3; iCnt++) {
                 WM.PutRowIndex(iCnt, iNode1FirstPosIndex+iCnt);
                 WM.PutColIndex(iCnt, iNode1FirstPosIndex+iCnt);
                 WM.PutColIndex(3+iCnt, iNode1FirstVelIndex+iCnt);
 
                 WM.PutRowIndex(3+iCnt, iNode2FirstPosIndex+iCnt);
                 WM.PutColIndex(6+iCnt, iNode2FirstPosIndex+iCnt);
                 WM.PutColIndex(9+iCnt, iNode2FirstVelIndex+iCnt);
         }
 
         /* v = x2-x1 */
         /* v(pNode2->GetXCurr()-pNode1->GetXCurr()); */
         doublereal dCross = v.Dot();
 
         /* Verifica che la distanza non sia nulla */
         if (dCross <= std::numeric_limits<doublereal>::epsilon()) {
                 silent_cerr("ViscoElasticRod(" << GetLabel() << "): "
                         "null distance between nodes " << pNode1->GetLabel()
                         << " and " << pNode2->GetLabel() << std::endl);
                 throw ErrNullNorm(MBDYN_EXCEPT_ARGS);
         }
 
         /* Lunghezza corrente */
         dElle = sqrt(dCross);
 
         /* Velocita' di deformazione */
         Vec3 vPrime(pNode2->GetVCurr()-pNode1->GetVCurr());
 
         /* Forza e slopes */
         doublereal dF = GetF();
         doublereal dFDE = GetFDE();
         doublereal dFDEPrime = GetFDEPrime();
 
         Mat3x3 K(Mat3x3(MatCrossCross, v, v*((-dF)/(dElle*dCross)))
                 + v.Tens(v*((dFDE)/(dL0*dCross)))
                 + v.Tens(v.Cross(vPrime.Cross(v*((dFDEPrime)/(dL0*dCross*dCross))))));
         Mat3x3 KPrime(v.Tens(v*((dFDEPrime)/(dL0*dCross))));
 
         /* Termini diagonali */
         WM.Add(1, 1, K);
         WM.Add(4, 7, K);
 
         WM.Add(1, 4, KPrime);
         WM.Add(4, 10, KPrime);
 
         /* termini extradiagonali */
         WM.Sub(1, 7, K);
         WM.Sub(4, 1, K);
 
         WM.Sub(1, 10, KPrime);
         WM.Sub(4, 4, KPrime);
 
         return WorkMat;
 }

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SubVectorHandler & ViscoElasticRod::InitialAssRes	(	SubVectorHandler &	WorkVec,
		const VectorHandler &	XCurr
	)

virtual

Reimplemented from Rod.

Definition at line 765 of file rodj.cc.

References VectorHandler::Add(), Rod::dCalcEpsilon(), DEBUGCOUT, Rod::dElle, Rod::dEpsilon, Rod::dEpsilonPrime, Rod::dL0, Vec3::Dot(), ConstitutiveLawOwner< T, Tder >::GetF(), WithLabel::GetLabel(), StructDispNode::GetVCurr(), StructDispNode::GetXCurr(), StructDispNode::iGetFirstPositionIndex(), InitialWorkSpaceDim(), MBDYN_EXCEPT_ARGS, Rod::pNode1, Rod::pNode2, SubVectorHandler::PutRowIndex(), VectorHandler::ResizeReset(), grad::sqrt(), VectorHandler::Sub(), ConstitutiveLawOwner< T, Tder >::Update(), and Rod::v.

 {
         DEBUGCOUT("Entering ViscoElasticRod::InitialAssRes()" << std::endl);
 
         /* Dimensiona e resetta la matrice di lavoro */
         integer iNumRows = 0;
         integer iNumCols = 0;
         InitialWorkSpaceDim(&iNumRows, &iNumCols);
         WorkVec.ResizeReset(iNumRows);
 
         /* Indici */
         integer iNode1FirstPosIndex = pNode1->iGetFirstPositionIndex();
         integer iNode2FirstPosIndex = pNode2->iGetFirstPositionIndex();
 
         /* Setta gli indici */
         for (int iCnt = 1; iCnt <= 3; iCnt++) {
                 WorkVec.PutRowIndex(iCnt, iNode1FirstPosIndex + iCnt);
                 WorkVec.PutRowIndex(3 + iCnt, iNode2FirstPosIndex + iCnt);
         }
 
         /* v = x2-x1 */
         v = pNode2->GetXCurr() - pNode1->GetXCurr();
         doublereal dCross = v.Dot();
 
         /* Verifica che la distanza non sia nulla */
         if (dCross <= std::numeric_limits<doublereal>::epsilon()) {
                 silent_cerr("ViscoElasticRod(" << GetLabel() << "): "
                         "null distance between nodes " << pNode1->GetLabel()
                         << " and " << pNode2->GetLabel() << std::endl);
                 throw ErrNullNorm(MBDYN_EXCEPT_ARGS);
         }
 
         /* Lunghezza corrente */
         dElle = sqrt(dCross);
 
         /* Deformazione */
         dEpsilon = dCalcEpsilon();
 
         /* Velocita' di deformazione */
         Vec3 vPrime(pNode2->GetVCurr() - pNode1->GetVCurr());
         dEpsilonPrime = (v.Dot(vPrime))/(dElle*dL0);
 
         /* Ampiezza della forza */
         ConstitutiveLaw1DOwner::Update(dEpsilon, dEpsilonPrime);
         doublereal dF = GetF();
 
         /* Vettore forza */
         Vec3 F(v*(dF/dElle));
 
         WorkVec.Add(1, F);
         WorkVec.Sub(4, F);
 
         return WorkVec;
 }

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virtual void ViscoElasticRod::InitialWorkSpaceDim	(	integer *	piNumRows,
		integer *	piNumCols
	)		const

inlinevirtual

Reimplemented from Rod.

Definition at line 232 of file rodj.h.

Referenced by InitialAssJac(), and InitialAssRes().

                                                                           {
                 *piNumRows = 6;
                 *piNumCols = 12;
         };

The documentation for this class was generated from the following files:

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation