Supported element types for FEM acoustic analysis

The available element types depend on whether you are running an acoustic or vibro-acoustic analysis.

Supported element types for acoustic analyses

Element family	Element type	Nastran bulk data entry
3D	Hexahedral (linear and parabolic)	CHEXA
Tetrahedral (linear and parabolic)	CTETRA
Wedge (linear and parabolic)	CPENTA
Pyramid (linear and parabolic)	CPYRAM
2D	Plane Strain Triangle (linear and parabolic)	CPLSTN3, CPLSTN6
Plane Strain Quadrilateral (linear and parabolic)	CPLSTN4, CPLSTN8
Plane Stress Triangle (linear and parabolic)	CPLSTS3, CPLSTS6
Plane Stress Quadrilateral (linear and parabolic)	CPLSTS4, CPLSTS8
Axisymmetric Triangle (linear and parabolic)	CTRAX3, CTRAX6
Axisymmetric Quadrilateral (linear and parabolic)	CQUADX4, CQUADX8
1D	Rigid Bar	RBAR
Rigid Link	RBE2
0D	Concentrated Mass	CONM1, CONM2

Supported element types for vibro-acoustic analyses

Element family	Element type	Nastran bulk data entry
3D	Hexahedral (linear and parabolic)	CHEXA
Tetrahedral (linear and parabolic)	CTETRA
Wedge (linear and parabolic)	CPENTA
Pyramid (linear and parabolic)	CPYRAM
2D	Plane Strain Triangle (linear and parabolic)	CPLSTN3, CPLSTN6
Plane Strain Quadrilateral (linear and parabolic)	CPLSTN4, CPLSTN8
Plane Stress Triangle (linear and parabolic)	CPLSTS3, CPLSTS6
Plane Stress Quadrilateral (linear and parabolic)	CPLSTS4, CPLSTS8
Axisymmetric Triangle (linear and parabolic)	CTRAX3, CTRAX6
Axisymmetric Quadrilateral (linear and parabolic)	CQUADX4, CQUADX8
1D	Rigid Bar	RBAR
Rigid Link	RBE2
0D	Concentrated Mass	CONM1, CONM2

How do I

Define a porous material

Define acoustic properties of fluids with CFD results

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Meshing for acoustic analyses

Meshing for FEM acoustic analysis

Element size for acoustic analysis

Solution stabilization options

Defining acoustic properties of fluids with CFD results

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Fluid materials for acoustic analyses

Supported fluid material properties

Porous materials

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Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

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Supported element types for FEM acoustic analysis, Simcenter 3D 2021.1 Series

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