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MIL-STD-810G Transportational Shock Simulation

Question asked by James Galliers on Oct 3, 2018


I was wondering if somebody could help me with modelling Transportation Shock as shown below using Solid works Simulation. I am Using Simulation Pro and have performed previous Random Vibration Analysis for the same project but am a little unsure on how to go about this one. I have a frequency study which I have copied into a new modal time study and inputted a peak sawtooth running over 11ms for each g rating and getting sensible stress answers in areas that I know would see the high stress due to previous real world failures, but I have 2 questions. 1.  Do I need to perform three separate shock sims i.e. one for 5.1g one for 6.4g and one for 7.6g and question 2 how do I input this data into a fatigue study to get the number of shocks in?

Many Thanks