Designing and Testing to Meet Standard Vibration Test Curves
Designing and Testing to Meet Standard Vibration Test Curves
(OP)
Can someone explain how to design and test a product to meet the requirements for standard random vibration test curves for equipment installed in fixed-wing aircraft? I have an Acceleration Power Spectral Density vs. Frequency curve that I'm having a hard time understanding.





RE: Designing and Testing to Meet Standard Vibration Test Curves
In order to do this task, you will probably need to perform a finite element analysis of the article in order to calculate the vibration modes and its response to dynamic (or quasi-static) loading. After you have optimized the dynamic response and have built the hardware, you will probably need to verify the modes (prior to a vibration test) through an experimental modal analysis. After you have correlated the modes with the analytical model and are satisfied that nothing will break during testing, you could hand-off the article to a test lab that will perform the actual qualification test.
pj