Creating Line Mass Densities

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

Units are line mass density units (typically kg/m 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 Line Mass Density .

    The Line Mass Density dialog box appears.

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

  3. Select the support (an edge, curve or line geometry) on which the line mass density is applied.

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

  4. In the Mass density box, enter the value of the mass density magnitude.

    This value remains constant whatever the geometry selection.

  5. Click OK.

    A line mass density appears in the specification tree under the active mass set. Symbols representing the line mass density are displayed on the geometry.