Overall vibration, severity levels and CF+
by Dr G Zusman and G Gardner, Fluke Corporation
Published in Electricity+Control, October 2014 (pages 4 – 8)
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Mechanical vibration is a difficult subject matter to master. The advanced practitioner must master sophisticated concepts in mathematics and physics in order to accurately collect and interpret vibration data. This has caused a major problem for industrial plants – the benefits of a mechanical vibration testing programme are well known, but far too many plants choose to avoid mechanical vibration testing because of the perceived complexity.
Topics covered in this article are:
- The difference between frequency spectrum analysis and overall mechanical vibration analysis
- Overall mechanical vibration analysis and severity scales
- Crest Factor Plus (CF+): High frequency overall mechanical vibration analysis and severity scales
The article describes two mechanical vibration products – a mechanial vibration tester and a mechanical vibration meter - which are easy to use and able to overcome the complex issues relating to mechanical vibration.
- Mechanical vibration is difficult to master.
- Sophisticated concepts in mathematics and physics are necessary to accurately collect and interpret mechanical vibration data.
- Many industrial plants avoid mechanical vibration testing because of its perceived complexity.