An Indirect Method for Converting a Shock Response Spectrum Specification to a New Q Value

•  Aerospace pyrotechnic shock response spectrum (SRS) specifications are almost always given with an amplification factor Q=10
• Corresponding time history waveforms for the base input acceleration are almost never given with the specifications
• Users are allowed to synthesize their own waveforms to satisfy the SRS for analysis & test purposes
• Some shock analysis methods use the SRS directly without time history synthesis, such as modal combination methods
• The following method enables an SRS specification to be converted to a new Q value for engineering purposes

Slides:  150_SRS_specification_new_Q.pptx

Software: Matlab Vibrationdata GUI

– Tom Irvine