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*DSECURRENT
Specify distributed current densities over a surface in an electromagnetic analysis.

This option is used to input distributed current densities over a surface in coupled thermal-electrical, coupled thermal-electrical-structural, eddy current, and magnetostatic analyses.

Products: Abaqus/Standard  Abaqus/CAE  

Type: History data

Level: Step

Abaqus/CAE: Load module

References:

Optional parameters:

AMPLITUDE

Set this parameter equal to the name of the amplitude curve that defines the magnitude of the electric current density during the step (“Amplitude curves,” Section 34.1.2 of the Abaqus Analysis User's Guide). 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 (“Defining an analysis,” Section 6.1.2 of the Abaqus Analysis User's Guide).

OP

Set OP=MOD (default) for existing *DSECURRENTs to remain, with this option defining distributed current densities to be added or modified.

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

Optional, mutually exclusive parameters for time-harmonic eddy current analyses: 

IMAGINARY

Include this parameter to define the imaginary (out-of-phase) part of the surface current density.

REAL

Include this parameter (default) to define the real (in-phase) part of the surface current density.

Data lines to define distributed electrical current densities in coupled thermal-electrical or coupled thermal-electrical-structural analyses: 

First line:

  1. Surface name.

  2. Distributed current density type label CS.

  3. Reference surface current density magnitude. (Units of CL–2T–1.)

Repeat this data line as often as necessary to define current densities for various surfaces.

Data lines to define surface current densities in eddy current or magnetostatic analyses: 

First line:

  1. Surface name.

  2. Surface current density type label CK (uniform) or CKNU (nonuniform).

  3. Reference surface current density magnitude. (Units of CL–1T–1.)

  4. 1-component of the surface current density vector direction.

  5. 2-component of the surface current density vector direction.

  6. 3-component of the surface current density vector direction.

    7. For nonuniform loads the magnitude and direction must be defined in user subroutine UDSECURRENT. If given, the magnitude and direction will be passed into the user subroutine.

  7. Name of the orientation option (“Orientations,” Section 2.2.5 of the Abaqus Analysis User's Guide) that defines the local coordinate system in which the surface current density vector is specified.

Repeat this data line as often as necessary to define surface current densities for various surfaces.