Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum (src_forum@alionscience.com )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

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Original Message:

Posted by: Paul (pauldeo1@hotmail.com )
Organization:TOSL Engineering Limited
Date posted: Thu May 2 14:42:57 US/Eastern 2002
Subject: vibration analysis
Message:
In my vibration spectra for a class one motor, the 120Hz peak is located at 4.13X in the low frequency range. I'm getting a peak of 0.21mm/s at this 120 Hz peak on the non drive end of the motor... when I look at the high range frequency readings I'm seeing two peaks spaced at a distance of 4.13 apart....in the radial, tangential and axial directions of the motor..one of these peaks has a value of 3.75mm/s in the radial direction ...I think that the motor has an electrical problem...but I can't specifically identify the electrical fault...can you help me on this, mentioning anything you can on the level of 3.75mm/s if you can . Thank you Regards, Paul

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