Random Vibration results analysis - how to?
Random Vibration results analysis - how to?
(OP)
Hi
I've run a model of an antenna fairing thru the frequency response and submitted it to the random PSD analysis. I get graphs of certain variables - accelerations, stresses and so forth.
How do I interpert these results? how can I say they are "good"/"bad"/have a certain margin of safety?
I know it's a tall order, but my associate who does the dynamic analysis is abroad, and I have no one else :)
TIA
Jake.
I've run a model of an antenna fairing thru the frequency response and submitted it to the random PSD analysis. I get graphs of certain variables - accelerations, stresses and so forth.
How do I interpert these results? how can I say they are "good"/"bad"/have a certain margin of safety?
I know it's a tall order, but my associate who does the dynamic analysis is abroad, and I have no one else :)
TIA
Jake.





RE: Random Vibration results analysis - how to?
2. Perform a fatigue calculation using Miner's rule.
3. Compare the acceleration levels with any test levels that the antenna has previously been subjected to and successfully passed.
Tom Irvine
www.vibrationdata.com