Random Vibration Testing
Random Vibration Testing
(OP)
We are about to do some Random Vibration Testing in an external Lab, and have been asked about the "Sweep Rate" for the testing. I cannot see what "sweep rate" has to do with Random Vibration Testing. Have I missed something?
Thanks for any input.
Thanks for any input.





RE: Random Vibration Testing
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Random Vibration Testing
RE: Random Vibration Testing
The purpose for that is to see if you "changed" something as a result of the random vibe test.
Did you also request a sine sweep or sine vibe?
RE: Random Vibration Testing
I once flight-qualified a tungsten heater filament for a space booster launch. The vib. tech and I joked that the test would likely have a high sweep rate - and the stress analyst who was also there to witness the test gave us a puzzled look and started to object.
Then I explained that we meant how often we'd have to sweep up the broken pieces...