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How do I Determine Shock Response Spectra?

Asked by Alex Fay on 23 Feb 2012

I have data from several accelerometers on a missile. I need to determine the shock response spectra and can't find an adequate function in the Matlab library. Can someone point me down the right path?

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Alex Fay

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Answer by bym on 24 Feb 2012

I would say that Alex is looking for something else...

In my experience, the derivative of acceleration is called "jerk". SRS is the maximum {displacement,velocity,acceleration} of a single DOF oscillator at specific frequencies given a certain input time history. I have some code, but have to do some digging... in the meantime here is a good reference if you want to "roll your own" from scratch

http://www.saviac.org/78th_Symposium/Training%20Material/Shock%20Analysis%20Using%20the%20Pseudo%20Velocity%20Shock%20Spectrum%20-%20Part%201%20(10-23-07).pdf

2 Comments

Alex Fay on 27 Feb 2012

Thanks. I'm reading some background publications from Dr. Gaberson. He actually lives nearby, so I may have to track him down.

bym on 28 Feb 2012

email him and he'll send you his code...

bym

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