Abstractions Section

These tools allow you to define various modeling abstractions including nonstructural masses and acoustic features.

You can add nonstructural masses to a model to account for mass and inertia of components that do not add stiffness to the structure. Once their mass is accounted for, these components can be modeled as rigid bodies or left out of the simulation model entirely.

This page discusses:

Flyout for Rigid Bodies
Flyout for Inertias
Flyout for Masses


	Rigid Body See Flyout for Rigid Bodies.
	Point Inertia See Flyout for Inertias.
	Mass per Unit Volume See Flyout for Masses.
	Fluid Cavity Creates a surface-based fluid cavity. See Defining Fluid Cavities.
	Fluid Exchange Models flow between a fluid cavity and the environment or another fluid cavity. See Defining the Fluid Flow In and Out of Fluid Cavities.
	Acoustic Domain Defines the acoustic region of the model for use with Hex Dominated Meshing. See Defining Acoustic Domains.
	Acoustic Volume Sets the volume within which acoustic properties and mesh elements are applied. See Defining Acoustic Volumes.
	Acoustic Coupling Creates a tie coupling between the mesh in an acoustic domain and the mesh in the surrounding structural domain. See Defining Acoustic Couplings.
	Acoustic Absorber Specifies acoustic absorption properties for a surface of your model. See Defining Acoustic Absorbers.
	Cyclic Symmetry Creates a cyclic symmetry model. See Defining Cyclic Symmetry.
	Voxel Domain Creates a voxel domain for the voxel mesher. See Defining Voxel Domains.

Flyout for Rigid Bodies


	Rigid Body Applies properties to a region where deformation can be considered negligible. See Defining Rigid Bodies.
	Analytical Rigid Surface Applies properties to a region where the motion is controlled by the motion of a single point. See Defining Analytical Rigid Surfaces.
	Contact Virtual Part Applies a rigid mirror part in contact with the surface region selected. See Defining Virtual Contact Interactions.

Flyout for Inertias


	Point Inertia Applies nonstructural mass and inertia on a point. See Defining Point Inertias.
	Remote Inertia Applies remote mass and inertia. See Defining Remote Inertias.

Flyout for Masses


	Mass Per Unit Volume Applies nonstructural mass on a body. See Defining Mass Per Unit Volume.
	Mass Per Unit Area Applies nonstructural mass on a face. See Defining Mass Per Unit Area.
	Mass Per Unit Length Applies nonstructural mass along a beam. See Defining Mass Per Unit Length.