- Mapdl.hropt(method='', maxmode='', minmode='', mcout='', damp='', **kwargs)¶
Specifies harmonic analysis options.
APDL Command: HROPT
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
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.
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.
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).
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.