Your suggestion to find an expert is appropriate and we are taking steps to do so, unfortunately our customer is not the proper source for said expert, making it a bit more difficult.
The random vibe PSD curve provided pertains to launch loads the component would experience, and for this...
We are performing a Random Vibe FEA on a spacecraft component. My question is once we have stress values from the analysis (either 1 sigma or 3 sigma), what then do we do with these? Compare to yield? Superimpose with pressure and thermal stresses and then compare to yield? Are they suitable...