Defining a concentrated charge

You can create a concentrated charge load to apply an electric charge to a vertex or node in a piezoelectric analysis.

Related Topics
Creating and modifying prescribed conditions
Understanding symbols that represent prescribed conditions
Using analytical expression fields
Creating expression fields
In Other Guides
Piezoelectric analysis

  1. Display the concentrated charge 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 The Analytical Field toolset for more information.)

  3. In the Magnitude field, enter the charge magnitude (units C).

  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 The Amplitude toolset for more information.)

    Note:

    The amplitude field appears only if amplitudes are valid for the type of perturbation step in which you are creating the load. For more information, see “Linear perturbation analysis steps,” in General and perturbation procedures.

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