Class containing a cable element object, allowing for disks and spheres to be connected. More...

#include <CNetCableElement.h>

Inheritance diagram for CNetCableElement:

Collaboration diagram for CNetCableElement:

Public Member Functions
	CNetCableElement (const CNetCableElement *pOld)

	CNetCableElement (const CNetCableElementSpec *pSpec)

void	AddEndForces (double dDeltaT, const double adPosA[3], const double adVelA[3], const double adPosB[3], const double adVelB[3], const double adFluidVel[3], const double dRhoWater, double adForceA[3], double adForceB[3], bool isScreen=false)

void	SetConstants ()
	Calculates parameters and sets physical constants.

void	CalcMassAndWeight ()
	Calculates the mass and weight of the element in water.

bool	Divide (int aiNodes[2], int iNewNode, int iNewElementID, CNetCableElement **pSNewCable)
	Divides the element in two.

bool	CheckAndInitialize ()
	Does the initialization and checking to make sure that the element is ready for simulation.

void	DeleteSpheresAndDisks ()

void	AddSpheres (double adD, double adMass, double *adPos, std::vector< std::string > VsSphereMaterial, unsigned int iNum)

void	AddDisks (double adD, double adThickness, double adMass, double adPos, std::vector< std::string > VsDiskMaterial, unsigned int iNum)

double	GetStrainEnergy (double dDeltaT, const double adPosA[3], const double adVelA[3], const double adPosB[3], const double adVelB[3], const double adFluidVel[3], const double dRhoWater)

Public Member Functions inherited from CCableElDynStiff
	CCableElDynStiff ()
	The constructor.

	~CCableElDynStiff ()
	The destructor.

virtual void	UpdateLength (double dNewLength, double dStep, bool bForceUpdate=false)
	Updates the length of the cable element, and its dependant properties.

void	UpdateMeanTension (double dStep)
	Updates the mean tension of the cable element.

virtual void	AddStructuralForces (double adForceA[3], double adForceB[3])
	Adds the forces from tension and internal damping to the nodes. CalcFoundation must be run first.

Public Member Functions inherited from CCableElBasics
	CCableElBasics ()
	The constructor.

	~CCableElBasics ()
	The destructor.

virtual void	AddEndForces (const double adPosA[3], const double adVelA[3], const double adPosB[3], const double adVelB[3], const double adFluidVel[3], const double dRhoWater, double adForceA[3], double adForceB[3])
	Calculates the end forces on the cable element.

virtual void	UpdateLength (double dNewLength)
	Upates the length of the cable element, and its dependant properties.

double	GetLength ()

Public Attributes
double	m_dNodeOffset
	The offset between the original nodes of the added node of this cable.

int	m_iFromNodes [2]
	The nodes which this cable is constructed by dividing.

int	m_aiConn [2]
	The node numbers that the element is connected to.

double	m_dRefineFactor
	The factor telling how much mesh refinement is desired for this element.

unsigned int	m_iNumSpheres
	The number of spheres connected.

double *	m_adSphereD
	The diameter of the connected spheres.

double *	m_adSphereMass
	The mass of the connected spheres.

double *	m_adSpherePos
	The position of the connected spheres.

unsigned int	m_iNumDisks
	The number of disks connected.

double *	m_adDiskD
	The diameter of the connected disks.

double *	m_adDiskThickness
	The thickness of the connected disks.

double *	m_adDiskMass
	The mass of the connected disks.

double *	m_adDiskPos
	The position of the connected disks.

double	m_dAddedWeightInWater
	The weight in water added to the element.

std::vector< std::string >	m_VsDiskMeshName
	The names of the materials of the attached disks.

std::vector< std::string >	m_VsSphereMeshName
	The names of the materials of the attached spheres.

Public Attributes inherited from CCableElDynStiff
double	m_dMaxStep
	The maximum step of the integration routine.

double	m_dMeanTension
	The mean tension of the cable element.

double	m_dEAdaptationPeriod
	The time constant of the adaptation of the mean tension.

double	m_dStepSafetyFactor
	The safety factor when calculating the Young modulus of the element.

Public Attributes inherited from CCableElBasics
unsigned long	m_iID
	The ID of the element.

std::string	m_sCableName
	The name of the parent cable.

double	m_dL0
	The relaxed length of the element.

double	m_dD
	The diameter of the element.

double	m_dE
	The Young modulus of the element.

double	m_dRho
	The density of the element material.

double	m_dAddedWeightInWater
	The weight in water added to the element.

double	m_dTangentialFrictionCoeff
	The tangential drag coefficient of the cable element.

double	m_dNormalDragCoeff
	The normal drag coefficient of the cable element.

double	m_dRhoWater
	The density of the surrounding water.

double	m_dMinLength
	The minimum length of the element.

double	m_dMaxTension
	The maximum tension in the element.

double	m_dDampingRatio
	The relative damping ratio of the cable.

double	m_dEA
	The linear stiffness of the element.

double	m_dA
	The cross sectional area of the cable.

double	m_adWeightInWater [2]
	The weight in water distributed to each node.

double	m_adMassInWater [2]
	The mass in water distributed to each node.

double	m_adWeightInWaterPerMeter [2]
	The weight in water distributed to each node, per meter cable.

double	m_adMassInWaterPerMeter [2]
	The mass in water distributed to each node, per meter cable.

Protected Member Functions
void	AddHydroForcesAppendices (double adForceA[3], double adForceB[3])
	Calculates the hydrodynamic forces on spheres and disks attached to the cable.

Protected Member Functions inherited from CCableElBasics
void	CalcFoundation (const double adPosA[3], const double adVelA[3], const double adPosB[3], const double adVelB[3], const double adFluidVel[3], const double dRhoWater)

void	AddGravityBuoyancy (double adForceA[3], double adForceB[3], const double adPosA[3], const double adPosB[3])
	Adds the forces from gravity and buoyancy to the nodes. CalcFoundation must be run first.

void	AddHydroForcesCable (double adForceA[3], double adForceB[3])
	Calculates the hydrodynamic forces on the cable and the spheres and disks attached to it. CalcFoundation must be run first.

Protected Attributes
double	m_dDragCoeffSphere
	The drag coefficient of a sphere.

double	m_dNormalDragCoeffDisk
	The normal drag coefficient of a disk.

double	m_dTangentialFrictionCoeffDisk
	The normal drag coefficient of a disk.

Protected Attributes inherited from CCableElDynStiff
double	ma_dEps
	The stretching of the cable.

double	m_dEFactor
	The factor multiplied by the Young modulus.

double	m_dMeanTensionDamp
	The damping of the development of the mean tension.

double	ma_adMeanTensionForceA [3]

double	ma_dAdaptationDamping

sfh::filters::PID	m_MeanTensionController

Protected Attributes inherited from CCableElBasics
double	ma_adDirection [3]
	Memory allocation to increase the computational efficiency.

double	ma_dDampingCoeff
	A intermediate damping calculation to increase the computational efficiency.

double	ma_adVel [3]
	The average hydrodynamic velocity of the element.

double	ma_dVelAmp
	The scalar average hydrodynamic velocity of the element.

double	ma_adVt [3]
	The average tangential hydrodynamic velocity of the element.

double	ma_dVtAmp
	The scalar average tangential hydrodynamic velocity of the element.

double	ma_adVn [3]
	The average normal hydrodynamic velocity of the element.

double	ma_dVnAmp
	The scalar average normal hydrodynamic velocity of the element.

double	ma_adVn_A [3]
	The hydrodynamic normal velocity of the end A.

double	ma_adVn_B [3]
	The hydrodynamic normal velocity of the end B.

double	ma_dVnAmp_A
	The scalar hydrodynamic normal velocity of the end A.

double	ma_dVnAmp_B
	The scalar hydrodynamic normal velocity of the end B.

double	ma_dLength
	The actual distance between the ends.

double	ma_dCompressionSpeed
	The speed at which the distance between the two ends decreases.

double	ma_dTangentialDragFactor
	A factor used when calculating the tangential drag force.

double	ma_dNormalDragFactor
	A factor used when calculating the normal drag force.

Detailed Description

Author: Karl-Johan Reite

Member Function Documentation

◆ CalcMassAndWeight()

void CNetCableElement::CalcMassAndWeight ( )

virtual

Reimplemented from CCableElBasics.

◆ CheckAndInitialize()

bool CNetCableElement::CheckAndInitialize ( )

virtual

Reimplemented from CCableElDynStiff.

◆ SetConstants()

void CNetCableElement::SetConstants ( )

virtual

Reimplemented from CCableElBasics.

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

/update_root/webfhsim/reloadrepos/fhsim_extras/src/net/CNetCableElement.h

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

◆ CalcMassAndWeight()

◆ CheckAndInitialize()

◆ SetConstants()