The OpenFOAM Foundation
momentOfInertia Class Reference

Calculates the inertia tensor and principal axes and moments of a polyhedra/cells/triSurfaces. Inertia can either be of the solid body or of a thin shell. More...

## Static Public Member Functions

static void massPropertiesSolid (const pointField &pts, const triFaceList &triFaces, scalar density, scalar &mass, vector &cM, tensor &J)

static void massPropertiesShell (const pointField &pts, const triFaceList &triFaces, scalar density, scalar &mass, vector &cM, tensor &J)

static void massPropertiesSolid (const triSurface &surf, scalar density, scalar &mass, vector &cM, tensor &J)

static void massPropertiesShell (const triSurface &surf, scalar density, scalar &mass, vector &cM, tensor &J)

static tensor applyParallelAxisTheorem (scalar mass, const vector &cM, const tensor &J, const vector &refPt)

static tmp< tensorFieldmeshInertia (const polyMesh &mesh)

static tensor meshInertia (const polyMesh &mesh, label celli)

## Detailed Description

Calculates the inertia tensor and principal axes and moments of a polyhedra/cells/triSurfaces. Inertia can either be of the solid body or of a thin shell.

Source files

Definition at line 52 of file momentOfInertia.H.

## Member Function Documentation

 void massPropertiesSolid ( const pointField & pts, const triFaceList & triFaces, scalar density, scalar & mass, vector & cM, tensor & J )
static

Definition at line 32 of file momentOfInertia.C.

Referenced by momentOfInertia::massPropertiesShell().

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 void massPropertiesShell ( const pointField & pts, const triFaceList & triFaces, scalar density, scalar & mass, vector & cM, tensor & J )
static

Definition at line 189 of file momentOfInertia.C.

Referenced by momentOfInertia::massPropertiesSolid().

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 void massPropertiesSolid ( const triSurface & surf, scalar density, scalar & mass, vector & cM, tensor & J )
static

Definition at line 245 of file momentOfInertia.C.

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 void massPropertiesShell ( const triSurface & surf, scalar density, scalar & mass, vector & cM, tensor & J )
static

Definition at line 265 of file momentOfInertia.C.

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 Foam::tensor applyParallelAxisTheorem ( scalar mass, const vector & cM, const tensor & J, const vector & refPt )
static

Definition at line 285 of file momentOfInertia.C.

References Foam::I, and momentOfInertia::meshInertia().

Referenced by momentOfInertia::massPropertiesShell().

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 Foam::tmp< Foam::tensorField > meshInertia ( const polyMesh & mesh )
static

Definition at line 303 of file momentOfInertia.C.

References forAll, primitiveMesh::nCells(), tmp< T >::ref(), and tf.

Referenced by momentOfInertia::applyParallelAxisTheorem().

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 Foam::tensor meshInertia ( const polyMesh & mesh, label celli )
static

Definition at line 321 of file momentOfInertia.C.

References forAll, polyMesh::points(), List< T >::size(), and Foam::Zero.

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