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.