16.9.20 Defining an inward volume acceleration

You can create an inward volume acceleration load to specify a volume acceleration at a vertex or node on the boundary of an acoustic medium. (For more information, see Loads, in Acoustic, shock, and coupled acoustic-structural analysis, Section 6.10.1 of the Abaqus Analysis User's Guide.)

To create or edit an inward volume acceleration:

  1. Display the inward volume acceleration load editor using one of the following methods:

  2. Click the arrow to the right of the Distribution field, and select the option of your choice from the list that appears:

    • Select Uniform to define a load that is uniform over the region.

    • Select an analytical field to define a spatially varying load. Only analytical fields that are valid for this load type are displayed in the selection list. Alternatively, you can click to create a new analytical field. (See Chapter 58, The Analytical Field toolset,” for more information.)

  3. In the Magnitude field, enter the volume acceleration (units L3T–2).

  4. If desired, click the arrow to the right of the Amplitude field, and select the amplitude of your choice from the list that appears. Alternatively, you can click to create a new amplitude. (See Chapter 57, The Amplitude toolset,” for more information.)

  5. Click OK to save your data and to exit the editor.


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