PSDRES

PSDRES, Lab, RelKey
Controls solution output written to the results file from a PSD analysis.

SOLUTION: Spectrum Options

Lab

Label identifying the solution output:

DISP	—	Displacement solution (default). One-sigma displacements, stresses, forces, etc. Written as load step 3 on File.rst.
VELO	—	Velocity solution. One-sigma velocities, "stress velocities," "force velocities," etc. Written as load step 4 of File.rst.
ACEL	—	Acceleration solution. One-sigma accelerations, "stress accelerations," "force accelerations," etc. Written as load step 5 on File.rst.

RelKey

Key defining relative or absolute calculations:

REL	—	Calculations are relative to the base excitation (default).
ABS	—	Calculations are absolute.
OFF	—	No calculation of solution output identified by `Lab`.

Command Default

Relative displacement solution, no velocity or acceleration solution for 1 σ results.

Notes

Controls the amount and form of solution output written to the results file from a PSD analysis. One-sigma values of the relative or absolute displacement solution, relative or absolute velocity solution, relative or absolute acceleration solution, or any combination may be included on the results file.

This command is also valid in PREP7.

Menu Paths

Main Menu>Preprocessor>Loads>Load Step Opts>Spectrum>PSD>Calc Controls

Main Menu>Solution>Load Step Opts>Spectrum>PSD>Calc Controls