I agree with the above^^ It matters what the real world shock environment is, not whether or not it is hard on the equipment.
Getting 80Gs on the equipment with a 40G base excitation isn't a surprisingly high amount. I've seen spikes on isolated equipment over 100G from that same pulse.
My background is aerospace electronics. It is common to shock test isolated equipment on a shaker. On isolated equipment you can expect a high shock response. The test in MIL-STD-810 (I am guessing you're doing crash safety shock, procedure V since you mentioned 40G 11ms Sawtooth) calls for a...
Thank you both, that is very helpful.
I am interested in calculating fatigue damage spectrums for base excitations where this is not the case. E.G. broadband random with narrowband spikes) The powerpoint here provides a general equation that does not make this assumption...
Hi, I am reading this paper: http://www.vibrationdata.com/tutorials2/FDS_FDET_McNeill.pdf
In the intro it says "The APSD must be approximately uniform over the half power bandwidth of each oscillator."
What is the significance of the Acceleration PSD being "uniform" over the HPBW? What does...