Creating Line Mass Densities

Linear masses are distributed as mass per unit length over the selected geometry.

Linear masses can be applied to curves, edges, or line groups.

This task shows you how to create a linear mass on geometry.

  1. Click the Line Mass Density icon .

    The Line Mass Density dialog box appears, and a Line Mass Density object appears in the specification tree under the Masses objects set for the current analysis case.

  2. You can change the identifier of the mass by editing the Name field.

  3. Select the geometry support (edges of beam geometry). Any selectable geometry is highlighted when you pass the cursor over it. You can also select an edge group. You can select several supports to distribute the mass over all supports simultaneously.

    The Supports field is updated to reflect your selection.

  4. Enter the mass per unit length in the Line Mass Density field.

  5. Click OK in the Line Mass Density dialog box.

    Symbols representing the applied mass are displayed on the geometry.