plmc

Mapdl.plmc(lstep='', sbstep='', timfrq='', kimg='', hibeg='', hiend='', **kwargs)

Plots the modal coordinates from a mode-superposition solution.

APDL Command: PLMC

Parameters:

lstep, sbstep

Plot the solution identified as load step LSTEP and substep SBSTEP

timfrq

As an alternative to LSTEP and SBSTEP, plot the solution at the time value TIMFRQ (for ANTYPE,TRANS) or frequency value TIMFRQ (for ANTYPE,HARMIC). LSTEP and SBSTEP should be left blank.

kimg

If 0 (or blank), plot the real solution. If 1, plot the imaginary solution. Only valid for ANTYPE,HARMIC.

hibeg, hiend

For cyclic symmetry solutions, plot the solutions in the harmonic index solution range HIbeg to HIend. Defaults to all harmonic indices (all modes).

Notes

PLMC plots a histogram of the modal coordinates (the response amplitudes applied to each mode shape) at a certain time point (transient analyses) or frequency point (harmonic analyses). The absolute values of the modal coordinates are plotted. Use /XRANGE to plot only modes in a certain range, if desired.

For transient analyses, the Jobname.RDSP file must be available. For harmonic analyses, the Jobname.RFRQ must be available. No SET command is required and no expansion pass is required.

For a cyclic harmonic mode-superposition analysis, use the CYCFILES command to identify the Jobname.RFRQ and modal Jobname.RST file. You may limit the plot to display only those modes in a certain harmonic index range. The modes having the same harmonic index are each plotted in a unique color. If there are less than 10 harmonic indices, they are identified in the graphics legend.

This is a graphical representation of the optional Jobname.MCF text file. (see the TRNOPT and HROPT commands). For more information on modal coordinates, see Mode-Superposition Method in the Mechanical APDL Theory Reference.