hropt

Mapdl.hropt(method='', maxmode='', minmode='', mcout='', damp='', **kwargs)

Specifies harmonic analysis options.

APDL Command: HROPT

Parameters
  • method

    Solution method for the harmonic analysis:

    AUTO - Automatically select the most efficient method. Either the FULL method or the

    Variational Technology method is selected depending on the model. (default method).

    FULL - Full method.

    MSUP - Mode-superposition method.

    VT - Variational Technology method (based on FULL harmonic algorithm).

    VTPA - Variational Technology perfect absorber method (based on FULL harmonic

    algorithm).

    VTRU - Variational Technology reuse method (based on FULL harmonic algorithm).

  • maxmode – Largest mode number to be used to calculate the response (for Method = MSUP only). Defaults to the highest mode calculated in the preceding modal analysis.

  • minmode – Smallest mode number to be used (for Method = MSUP only). Defaults to 1.

  • mcout

    Modal coordinates output key (valid only for the mode superposition method MSUP):

    NO - No output of modal coordinates (default).

    YES - Output modal coordinates to the text file jobname.MCF.

  • damp

    Damping mode for frequency-dependent material properties (valid only for the Variational Technology Method VT).

    Hysteretic - Not proportional to the frequency.

    Viscous - Proportional to the frequency (default).

Notes

Specifies the method of solution for a harmonic analysis (ANTYPE,HARMIC). If used in SOLUTION, this command is valid only within the first load step. See the product restrictions indicated below.

For cyclic symmetry mode-superposition harmonic solutions, MAXMODE and MINMODE are ignored.

To include residual vectors in your mode-superposition harmonic analysis, specify RESVEC,ON.

This command is also valid in PREP7.

Distributed ANSYS Restriction: The VTRU method is not supported.