rigresp

SpectrumOptions.rigresp(option='', method='', val1='', val2='', **kwargs)

Specifies the rigid response calculation.

Mechanical APDL Command: RIGRESP

Parameters:

optionstr

Flag to activate or deactivate the rigid response calculation:

• 1 (ON or YES) - Activate.

• 2 (OFF or NO) - Deactivate. This value is the default.

methodstr

Method used to calculate the rigid response:

• GUPTA - Gupta method.

• LINDLEY - Lindley-Yow method.

val1str

If Method = GUPTA, Val1 represents the frequency F:sub:1 in Hertz.

If Method = LINDLEY, Val1 is the Zero Period Acceleration (ZPA). If a scale factor is defined (FACT in the svtyp command), it is used to scale this value

val2str

If Method = GUPTA, Val2 represents the frequency F:sub:2 in Hertz.

Notes

This rigid response calculation is only valid for single point response spectrum analysis ( spopt, SPRS) and multiple point response spectrum analysis ( spopt, MPRS) with combination methods ( srss ), complete quadratic ( cqc ) or Rosenblueth ( rose )

This command is also valid in PREP7.

• Performing a Single-Point Response Spectrum (SPRS) Analysis

• Performing a Multi-Point Response Spectrum (MPRS) Analysis

• Rigid Responses in the Mechanical APDL Theory Reference

• mmass command