Vibration Analysis of Shaft Misalignment and Diagnosis Method of Structure Faults for Rotating Machinery

doi:10.23940/ijpe.17.04.p1.337347

Abstract

Abstract: In this paper, two kinds of dynamic models for shaft misalignment of rotating machinery are proposed for vibration analysis and diagnosis of the shaft misalignment state. In order to obtain the solution of the dynamic models and clarify the vibration signal features measured in the shaft misalignment state, the calculation method of vibration forces caused by misalignments is also shown. The results of computer simulation and experiment using the same rotating machine are shown to verify the efficiency of the dynamic analysis method proposed in this paper. Finally, the method for distinguishing structure faults of rotating machines (shaft misalignment state, unbalance state and looseness state) is discussed by using symptom parameters and spectra of the vibration signal measured in these states.

Submitted on January 9, 2017; Revised on May 16, 2017; Accepted on May 24, 2017
References: 21

Zhaoyi Guan, Peng Chen, Xiaoyu Zhang, Xiong Zhou, and Ke Li. Vibration Analysis of Shaft Misalignment and Diagnosis Method of Structure Faults for Rotating Machinery [J]. Int J Performability Eng, 2017, 13(4): 337-347.

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