The main commands used to specify a Harmonic Balance Method (HBM) analysis are listed below. For a more detailed description of available options, their default settings, recommendations, and a discussion of how various options affect the analysis, see also HBM Solution Controls. For an example of usage, see Harmonic Balance Method Examples.
Preprocessor (/PREP7) or Solution (/SOLU) commands | |
---|---|
HROPT | Issue HROPT,HBM,NH
to specify:
|
HBMOPT | To specify solution options (must be issued in the solution
(/SOLU) processor). Note that cyclic symmetry
(HBMOPT,CYCLIC with
CYCkey =1) must be activated with this command
to solve for harmonic index greater than 0. |
HARFRQ | To define the frequency range by setting
FREQB and
FREQE to the beginning and end
frequency (Hz). Note the following:
|
NSUBST | To specify the number of substeps,
NSBSTP , if no continuation method is
used (only applicable for
HBMOPT,CONTSET,OFF). |