net_element_forces::PanelParams Struct Reference

#include <NetElement3NForces.h>

Public Attributes
double	nodesDistAB_mesh [2]
	Distance from node A to B in mesh (u,v) coordinates.
double	nodesDistAC_mesh [2]
	Distance from node A to C in mesh (u,v) coordinates.
double	nodesDistBC_mesh [2]
	Distance from node B to C in mesh (u,v) coordinates.
double	meshDet
	Mesh determinant, Priour (2005, Eq. 7); 0 for collinear corners.
double	barL0
	Unstretched length of a mesh bar.
double	eATwine
	E-modulus times twine cross-sectional area.
double	barD
	Diameter of the twines.
double	knotDiameter
	Diameter of the knots.
double	numBarsU
	Number of u-bars in the element, half its bar count.
double	numBarsV
	Number of v-bars in the element, half its bar count.
double	numKnots
	Number of knots in the element, its number of meshes.
double	NodeWeight
	Weight in water carried by one node.
double	dampingCoeff
bool	twineStructure = true

Detailed Description

The element's geometry and material properties, as computed by the owning class.

These are parameters, not variables: they are fixed at construction and the Jacobian is not taken with respect to them, so they stay double whatever the scalar type of the state is. Keeping them in one struct is what lets the force function below be a free function rather than a member, and therefore templatable without templating the class.

The members mirror the correspondingly named members of NetElement3N.

Member Data Documentation

dampingCoeff

double net_element_forces::PanelParams::dampingCoeff

Coefficient of the rotational and structural damping.

twineStructure

bool net_element_forces::PanelParams::twineStructure = true

Twine tension and structural damping on (NetPanelOptions::twineStructure). Off, AddNodeForces adds only the load law's force and the weight in water, in that order.

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

• webfhsim/reloadrepos/fhsim_marine_elements/src/net/NetElement3NForces.h