IMPACT-RUB FAULT CHARACTERISTICS AND HOLOSPECTRUM ANALYSIS OF ROTATING MACHINERY WITH IMBALANCE

Liu Xiong; Li Qihan

Chinese

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IMPACT-RUB FAULT CHARACTERISTICS AND HOLOSPECTRUM ANALYSIS OF ROTATING MACHINERY WITH IMBALANCE

更新时间：2026-07-07

- IMPACT-RUB FAULT CHARACTERISTICS AND HOLOSPECTRUM ANALYSIS OF ROTATING MACHINERY WITH IMBALANCE
- Vol. 13, Issue 4, (1998)
- 作者机构：
  
  北京航空航天大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1998
- 稿件说明：
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Liu Xiong, Li Qihan. IMPACT-RUB FAULT CHARACTERISTICS AND HOLOSPECTRUM ANALYSIS OF ROTATING MACHINERY WITH IMBALANCE[J]. 1998, 13(4).
DOI：

Liu Xiong, Li Qihan. IMPACT-RUB FAULT CHARACTERISTICS AND HOLOSPECTRUM ANALYSIS OF ROTATING MACHINERY WITH IMBALANCE[J]. 1998, 13(4). DOI：

摘要

Abstract

With respect to the impact-rub dynamic equations of Jeffcott rotor only with imbalance

the characteristics of every harmonic wave in the spectrum domain are studied according to the 2-dimension holospectrum theory

and an important feature of the impact-rub is obtained.The effects of friction coefficient and rotating velocity on the precession are analysed.It is discovered that the regular forward precession resulting from unbalancing force plays a critical role when the friction coefficient is small

but as the friction coefficient is enlarged

the quasi-periodic precession or instability will appear at certain rotating velocity.

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