Vibration Monitoring of Induction Motors and Case Histories on Shaft Misalignment and Soft Foot

William T. Thomson

doi:10.1017/9781108784887.002

1 - Vibration Monitoring of Induction Motors and Case Histories on Shaft Misalignment and Soft Foot

Published online by Cambridge University Press: 17 February 2021

William T. Thomson

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William T. Thomson: Affiliation:
EM Diagnostics Ltd., Scotland

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Summary

Chapter 1 provides an overview of publications on sources of vibration in electrical machines.Problems in rolling element bearings account for the largest number of failures of induction motors, therefore a review is presented on the use of vibration measurements and spectrum analysis to diagnose faults in rolling element bearings.The practical difficulty of accessing the housings of rolling element bearings is strongly emphasised, because if bearing housings cannot be accessed then it is more difficult to diagnose bearing faults. A brief overview of shaft misalignment and soft foot in induction motor drives is included, and five industrial case histories are presented on vibration analysis to detect shaft misalignment and/or soft foot.

Type: Chapter
Information: Vibration Monitoring of Induction Motors
Practical Diagnosis of Faults via Industrial Case Studies
, pp. 1 - 46

DOI: https://doi.org/10.1017/9781108784887.002 [Opens in a new window]

Publisher: Cambridge University Press

Print publication year: 2020

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References

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