- Mapdl.psdunit(tblno='', type_='', gvalue='', **kwargs)#
Defines the type of input PSD.
APDL Command: PSDUNIT
Input table number.
Label identifying the type of spectrum:
DISP - Displacement spectrum (in terms of displacement2/Hz ).
VELO - Velocity spectrum (in terms of velocity2/Hz ).
ACEL - Acceleration spectrum (in terms of acceleration2/Hz ).
ACCG - Acceleration spectrum (in terms of g2/Hz ).
FORC - Force spectrum (in terms of force2/Hz ).
PRES - Pressure spectrum (in terms of pressure2/Hz ).
Value of acceleration due to gravity in any arbitrary units for Type=ACCG. Default is 386.4 in/sec2.
Defines the type of PSD defined by the PSDVAL, COVAL, and QDVAL commands.
Force (FORC) and pressure (PRES) type spectra can be used only as a nodal excitation.
GVALUE is valid only when type ACCG is specified. A zero or negative value cannot be used. A parameter substitution can also be performed.
This command is also valid in PREP7.