artisynth.core.materials

Class MasoudMillardLAM

java.lang.Object

artisynth.core.materials.MaterialBase

artisynth.core.materials.AxialMaterial

artisynth.core.materials.AxialMuscleMaterialBase

artisynth.core.materials.AxialMuscleMaterial

artisynth.core.materials.MasoudMillardLAM

All Implemented Interfaces:

HasMaterialState, PostScannable, ScalableUnits, java.lang.Cloneable, CompositeProperty, HasProperties, Clonable, Scannable

public class MasoudMillardLAM
extends AxialMuscleMaterial

Field Summary

Fields

Modifier and Type	Field and Description
static PropertyList	myProps

Fields inherited from class artisynth.core.materials.AxialMuscleMaterial

DEFAULT_DAMPING, DEFAULT_MAX_FORCE, DEFAULT_MAX_LENGTH, DEFAULT_OPT_LENGTH, DEFAULT_PASSIVE_FRACTION, DEFAULT_SCALING, DEFAULT_TENDON_RATIO, maxStretch, minStretch

Constructor Summary

Constructors

Constructor and Description
MasoudMillardLAM()
MasoudMillardLAM(double penAngleLit, double sarcomereLenLit, double fiberRatio)

Method Summary

Modifier and Type	Method and Description
double	computeDFdl(double l, double ldot, double l0, double excitation) Computes and returns the derivative of the axial spring tension with respect to the length.
double	computeDFdldot(double l, double ldot, double l0, double excitation) Computes and returns the derivative of the axial spring tension with respect to the length time derivative.
double	computeF(double l, double ldot, double l0, double excitation) Computes and returns the axial spring tension, as a function of length, length time derivative, rest length, and excitation.
PropertyList	getAllPropertyInfo() Returns a list giving static information about all properties exported by this object.
double	getMyFMTratioLit()
double	getMySarcomereLenLit()
double	getNormFiberLen()
double	getPenAngleLit()
boolean	isDFdldotZero() Returns true if computeDFdldot() always returns zero.
void	setMyFMTratioLit(double FMTratioLit)
void	setMySarcomereLenLit(double sarcomereLenLit)
void	setPenAngleLit(double penAngleLit)

Methods inherited from class artisynth.core.materials.AxialMuscleMaterial

clone, equals, getDamping, getDampingMode, getForceScaling, getForceScalingMode, getMaxForce, getMaxForceMode, getMaxLength, getMaxLengthMode, getOptLength, getOptLengthMode, getPassiveFraction, getPassiveFractionMode, getSubClasses, getTendonRatio, getTendonRatioMode, normalizeForceScaling, scaleDistance, scaleMass, setAxialMuscleMaterialProps, setDamping, setDampingMode, setForceScaling, setForceScalingMode, setMaxForce, setMaxForceMode, setMaxLength, setMaxLengthMode, setOptLength, setOptLengthMode, setPassiveFraction, setPassiveFractionMode, setTendonRatio, setTendonRatioMode, toString

Methods inherited from class artisynth.core.materials.AxialMaterial

equals

Methods inherited from class artisynth.core.materials.MaterialBase

advanceState, createStateObject, getProperty, getPropertyHost, getPropertyInfo, hasProperty, hasState, hasSymmetricTangent, isWritable, postscan, scan, setPropertyHost, setPropertyInfo, symmetryOrStateChanged, updateMaterial, write, writeItems

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

myProps

public static PropertyList myProps

Constructor Detail

MasoudMillardLAM

public MasoudMillardLAM()

MasoudMillardLAM

public MasoudMillardLAM(double penAngleLit,
                        double sarcomereLenLit,
                        double fiberRatio)

Method Detail

getNormFiberLen

public double getNormFiberLen()

getAllPropertyInfo

public PropertyList getAllPropertyInfo()

Description copied from interface: HasProperties

Returns a list giving static information about all properties exported by this object.

Specified by:

getAllPropertyInfo in interface HasProperties

Overrides:

getAllPropertyInfo in class AxialMuscleMaterial

Returns:

static information for all exported properties

setPenAngleLit

public void setPenAngleLit(double penAngleLit)

getPenAngleLit

public double getPenAngleLit()

setMySarcomereLenLit

public void setMySarcomereLenLit(double sarcomereLenLit)

getMySarcomereLenLit

public double getMySarcomereLenLit()

setMyFMTratioLit

public void setMyFMTratioLit(double FMTratioLit)

getMyFMTratioLit

public double getMyFMTratioLit()

computeF

public double computeF(double l,
                       double ldot,
                       double l0,
                       double excitation)

Description copied from class: AxialMaterial

Computes and returns the axial spring tension, as a function of length, length time derivative, rest length, and excitation.

Specified by:

computeF in class AxialMaterial

Parameters:

l - spring length

ldot - spring length time derivative

l0 - spring rest length

excitation - excitation value (varying from 0 to 1)

Returns:

spring tension

computeDFdl

public double computeDFdl(double l,
                          double ldot,
                          double l0,
                          double excitation)

Description copied from class: AxialMaterial

Computes and returns the derivative of the axial spring tension with respect to the length.

Specified by:

computeDFdl in class AxialMaterial

Parameters:

l - spring length

ldot - spring length time derivative

l0 - spring rest length

excitation - excitation value (varying from 0 to 1)

Returns:

tension derivative with respect to length

computeDFdldot

public double computeDFdldot(double l,
                             double ldot,
                             double l0,
                             double excitation)

Description copied from class: AxialMaterial

Computes and returns the derivative of the axial spring tension with respect to the length time derivative.

Specified by:

computeDFdldot in class AxialMaterial

Parameters:

l - spring length

ldot - spring length time derivative

l0 - spring rest length

excitation - excitation value (varying from 0 to 1)

Returns:

tension derivative with respect to length time derivative

isDFdldotZero

public boolean isDFdldotZero()

Description copied from class: AxialMaterial

Returns true if computeDFdldot() always returns zero. For a linear spring, this simply means the damping is zero. When dFdldot is always 0, then stiffness matrix will be symmetric.

Specified by:

isDFdldotZero in class AxialMaterial