Vibration Failures:  Dynamic Testing and Finite Element Modeling Have Been Successful Diagnostic Methods
by: Maki Onari and Chris Hurrell
January 2008

A well-practiced approach is needed to find solutions to failures due to vibration.  This approach typically includes passive vibration analysis methods, strain gage results, and dynamic pressure measurements.  Field test data can be used to calibrate a Finite Element Analysis (FEA) model that mimics the problem.  The model can then be used to establish a solution without resorting to trial-and-error problem solving.  The below case history demonstrates that a combination of comprehensive dynamic testing and FEA can be a cost-effective approach to solving difficult, chronic mechanical problems...

This technical article appeared in the January/February 2008 edition of Turbomachinery International.

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