spunit#
- Mapdl.spunit(tblno='', type_='', gvalue='', keyinterp='', **kwargs)#
Defines the type of multi-point response spectrum.
APDL Command: SPUNIT
- Parameters:
- tblno
Input table number.
- type_
Label identifying the type of spectrum:
- DISP - Displacement spectrum (SPVAL values interpreted as displacements with units of
length).
- VELO - Velocity spectrum (SPVAL values interpreted as velocities with units of
length/time).
- ACEL - Acceleration spectrum (SPVAL values interpreted as accelerations with units of
length/time2).
- ACCG - Acceleration spectrum (SPVAL values interpreted as accelerations with units of
g/time2).
FORC - Force spectrum.
PRES - Pressure spectrum.
- gvalue
Value of acceleration due to gravity in any arbitrary units for Type=ACCG table. Default is 386.4 in/sec2.
- keyinterp
Key to activate or deactivate the linear interpolation between input response spectrum points and input response spectrum curves:
0 (OFF or NO) - Deactivate linear and use logarithmic interpolation. This value is the default.
1 (ON or YES) - Activate linear interpolation.
Notes
Defines the type of multi-point response spectrum defined by the SPFREQ and SPVAL 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.