Frequency Spectrum/Vibration of a secondary bearing

[YungPlantEng]

Let’s say we have a reasonably small pump and only want to measure vibration with a triaxial permanently mounted sensor on the IB of the motor due to its location. If a defect occurred on the OB of the motor or the pump bearing what would the vibration look like?

Is there any literature surrounding this?

 

[GregLocock]

It would show p, but not necessarily very obviously. Yes, if you do a modal analysis you can measure the transfer function of acceleration at the IB to the acceleration at the OB.

Cheers

Greg Locock


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