Spectrum options

These SOLUTION commands are used to define options for spectrum analyses.

Mapdl.addam([af, aa, ab, ac, ad, amin])	Specifies the acceleration spectrum computation constants for the
Mapdl.coval([tblno1, tblno2, sv1, sv2, sv3, ...])	Defines PSD cospectral values.
Mapdl.cqc([signif, label, forcetype])	Specifies the complete quadratic mode combination method.
Mapdl.ddaspec([keyref, shptyp, mountloc, ...])	APDL Command: DDASPEC
Mapdl.dsum([signif, label, td, forcetype])	Specifies the double sum mode combination method.
Mapdl.freq([freq1, freq2, freq3, freq4, ...])	Defines the frequency points for the SV vs.
Mapdl.grp([signif, label, forcetype])	Specifies the grouping mode combination method.
Mapdl.mmass([option, zpa])	Specifies the missing mass response calculation.
Mapdl.nrlsum([signif, label, labelcsm, ...])	Specifies the Naval Research Laboratory (NRL) sum mode combination
Mapdl.pfact([tblno, excit, parcor])	Calculates participation factors for the PSD or multi-point response
Mapdl.pivcheck([key, prntcntrl])	Controls the behavior of an analysis when a negative or zero equation solver pivot value is encountered.
Mapdl.psdcom([signif, comode, forcetype])	Specifies the power spectral density mode combination method.
Mapdl.psdfrq([tblno1, tblno2, freq1, freq2, ...])	Defines the frequency points for the input spectrum tables PSDVAL vs.
Mapdl.psdgraph([tblno1, tblno2, displaykey])	Displays input PSD curves
Mapdl.psdres([lab, relkey])	Controls solution output written to the results file from a PSD
Mapdl.psdspl([tblno, rmin, rmax])	Defines a partially correlated excitation in a PSD analysis.
Mapdl.psdunit([tblno, type_, gvalue])	Defines the type of input PSD.
Mapdl.psdval([tblno, sv1, sv2, sv3, sv4, ...])	Defines PSD values.
Mapdl.psdwav([tblno, vx, vy, vz])	Defines a wave propagation excitation in a PSD analysis.
Mapdl.qdval([tblno1, tblno2, sv1, sv2, sv3, ...])	Defines PSD quadspectral values.
Mapdl.rock([cgx, cgy, cgz, omx, omy, omz])	Specifies a rocking response spectrum.
Mapdl.rose([signif, label, td, forcetype])	Specifies the Rosenblueth mode combination method.
Mapdl.rigresp([option, method, val1, val2])	Specifies the rigid response calculation.
Mapdl.sed([sedx, sedy, sedz, cname])	Defines the excitation direction for response spectrum and PSD
Mapdl.spdamp([tblno, curvno, dampratio])	Defines input spectrum damping in a multi-point response spectrum
Mapdl.spfreq([tblno, freq1, freq2, freq3, ...])	Defines the frequency points for the input spectrum tables SPVAL vs.
Mapdl.spgraph([tblno, curvno, curvnobeg])	Displays input spectrum curves for MPRS analysis.
Mapdl.spopt([sptype, nmode, elcalc, ...])	Selects the spectrum type and other spectrum options.
Mapdl.spunit([tblno, type_, gvalue, keyinterp])	Defines the type of multi-point response spectrum.
Mapdl.spval([tblno, curvno, sv1, sv2, sv3, ...])	Defines multi-point response spectrum values.
Mapdl.srss([signif, label, abssumkey, forcetype])	Specifies the square root of sum of squares mode combination method.
Mapdl.sv([damp, sv1, sv2, sv3, sv4, sv5, ...])	Defines spectrum values to be associated with frequency points.
Mapdl.svplot([optionscale, damp1, damp2, ...])	Displays input spectrum curves.
Mapdl.svtyp([ksv, fact, keyinterp])	Defines the type of single-point response spectrum.
Mapdl.vddam([vf, va, vb, vc])	Specifies the velocity spectrum computation constants for the analysis