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Synthesized synchronous sampling and acceleration enveloping for differential bearing damage signature

  • US 20100071469A1
  • Filed: 09/22/2008
  • Published: 03/25/2010
  • Est. Priority Date: 09/22/2008
  • Status: Active Grant
First Claim
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1. A method of detecting differential bearing damages, the method comprising:

  • generating a plurality of speed signals for inner and outer rotating bearing races;

    synthesizing a tachometer corresponding to the speed difference of the inner and outer races ; and

    synchronously sampling bearing vibration data in response to the synthesized speed difference tachometer signal to generate synthesized cycle domain data corresponding to at least one bearing damage signature.

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