Bump Test
November 18, 2011
If you suspect that a natural resonance condition exists in your machine at some running speed attained with a VFD, and you don’t have the resources to perform a startup/coastdown test or a means to do any formal modal tests, you might try a quick “bump” test.
The “bump” test is a useful vibration analysis technique to help identify resonance frequencies in a machine’s structure.
Tip provided by: Dennis Shreve, Customer Success Manager, Commtest Inc.
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Comments (1)
1) Posted 10:55 pm, 23 November 2011 by Madan Mohan Gupta