Creating Surface Mass Densities

You can create a surface mass density applied to a virtual part or to a geometry selection. Surface mass densities are used to model purely inertial (non-structural) system characteristics such as additional equipment. They represent scalar surface mass density fields of given intensity, applied to surface geometries.

Units are surface mass density units (typically kg/m2 in SI).

Before you begin: A structural analysis simulation containing a mass set must be open.
Related Topics
Working with Excitations
Authorized Supports
Reviewing Specifications

  1. In the Masses toolbar, click Surface Mass Density .

    The Surface Mass Density dialog box appears.

  2. Optional: In the Name box, modify the name of the mass.

  3. Select the support (a surface or face geometry) on which the surface mass density is applied.

    Any selectable geometry is highlighted when you pass the cursor over it. You can select several supports in sequence, to apply the surface mass density to all supports simultaneously.

  4. In the Surface mass density box, enter the value of the surface mass density.

    This value remains constant whatever the geometry selection.

  5. Click OK.

    A surface mass density appears in the specification tree under the active Masses set.