ABAQUS Keywords Reference Manual  

*CECHARGE
Specify concentrated electric charges in piezoelectric analysis.

This option is used to apply electric charge to any node in a piezoelectric model.

Product: ABAQUS/Standard  

Type: History data

Level: Step  

Reference:

Optional parameters:

AMPLITUDE

Set this parameter equal to the name of the amplitude curve that defines the magnitude of the electric charge during the step. If this parameter is omitted, the reference magnitude is applied immediately at the beginning of the step or linearly over the step, depending on the value assigned to the AMPLITUDE parameter on the *STEP option (“Procedures: overview,” Section 6.1.1 of the ABAQUS Analysis User's Manual).

LOAD CASE

Set this parameter equal to the load case number. This parameter is used only in *STEADY STATE DYNAMICS, DIRECT analysis; it is ignored in all other procedures. LOAD CASE=1 (default) defines the real (in-phase) part of the loading, and LOAD CASE=2 defines the imaginary (out-of-phase) part of the loading.

OP

Set OP=MOD (default) for existing *CECHARGEs to remain, with this option modifying existing electric charges or defining additional electric charges.

Set OP=NEW if all existing *CECHARGEs applied to the model should be removed.

Data lines to define concentrated electric charges: 

First line:

  1. Node number or node set label.

  2. Leave blank.

  3. Reference electric charge magnitude. (Units of C.)

Repeat this data line as often as necessary to define concentrated electric charges at various nodes or node sets.