Intelligent Manufacturing Technology

Discriminative Features of Abnormities in a Spiral Groove Gas Face Seal Based on Dynamic Model Considering Contact

  • Yuan Yin ,
  • Weifeng Huang ,
  • Decai Li ,
  • Songtao Hu ,
  • Xiangfeng Liu ,
  • Ying Liu
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  • 1. State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China;
    2. State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, China

收稿日期: 2021-01-12

  修回日期: 2021-12-27

  网络出版日期: 2022-06-30

基金资助

Supported by the National Key R & D Program of China (Grant No. 2020YFB2010000) and the National Natural Science Foundation of China (Grant No. U1737209)

Discriminative Features of Abnormities in a Spiral Groove Gas Face Seal Based on Dynamic Model Considering Contact

  • Yuan Yin ,
  • Weifeng Huang ,
  • Decai Li ,
  • Songtao Hu ,
  • Xiangfeng Liu ,
  • Ying Liu
Expand
  • 1. State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China;
    2. State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, China

Received date: 2021-01-12

  Revised date: 2021-12-27

  Online published: 2022-06-30

Supported by

Supported by the National Key R & D Program of China (Grant No. 2020YFB2010000) and the National Natural Science Foundation of China (Grant No. U1737209)

摘要

It is a difficult task to root the cause of the failure of a gas face seal because different causes may result in similar observations. In the work being presented, the discrimination of multiple types of abnormities in a spiral groove gas face seal is studied. A dynamic model is employed to analyze groups of cases in order to uncover the dynamic behaviors when the face contact is induced by different mixtures of abnormities, whose discriminative features when motion and contact are monitored are studied and uncovered. A circumferential-pattern-related oscillation phenomenon is discovered, which is extracted from contact information and implies the relative magnitude of the moment on stator and the rotor tilt. The experimental observation shows consistent results. It means that the grooves (or other circumferential patterns) generate useful informative features for monitoring. These results provide guidance for designing a monitored gas face seal system.

本文引用格式

Yuan Yin , Weifeng Huang , Decai Li , Songtao Hu , Xiangfeng Liu , Ying Liu . Discriminative Features of Abnormities in a Spiral Groove Gas Face Seal Based on Dynamic Model Considering Contact[J]. Chinese Journal of Mechanical Engineering, 2022 , 35(2) : 22 -22 . DOI: 10.1186/s10033-022-00694-4

Abstract

It is a difficult task to root the cause of the failure of a gas face seal because different causes may result in similar observations. In the work being presented, the discrimination of multiple types of abnormities in a spiral groove gas face seal is studied. A dynamic model is employed to analyze groups of cases in order to uncover the dynamic behaviors when the face contact is induced by different mixtures of abnormities, whose discriminative features when motion and contact are monitored are studied and uncovered. A circumferential-pattern-related oscillation phenomenon is discovered, which is extracted from contact information and implies the relative magnitude of the moment on stator and the rotor tilt. The experimental observation shows consistent results. It means that the grooves (or other circumferential patterns) generate useful informative features for monitoring. These results provide guidance for designing a monitored gas face seal system.

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