Dynamics of Multi-disk Rotor System with Rub-impact Fault

被引：0
|
作者：
Dai, Jishuang [1 ]
Ma, Hui
Wang, Xuejun
Wen, Bangchun [1 ]
机构：
[1] Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110004, Liaoning, Peoples R China
来源：
E-ENGINEERING & DIGITAL ENTERPRISE TECHNOLOGY VII, PTS 1 AND 2 | 2009年 / 16-19卷
关键词：
Dynamics; Multi-disk rotor system; Finite element method; Rub-impact;
D O I：
10.4028/www.scientific.net/AMM.16-19.1082
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, a multi-disk rotor system is studied. The rotor system is properly simplified and the finite element model is established. Assuming that contact region is an arc when the practical rotor-stator rub-impact fault occurs. Contact analysis and nonlinear finite element method are adopted to carry out numerical simulation of rub-impact. The results show that 1/2 fractional frequency components appear in slight rub-impact stage; 1/3 fractional frequency components appear in moderate rub-impact stage and 1/4 fractional frequency components appear in serious rub-impact stage. The research results will provide theoretical support for fault diagnosis of rub-impact.
引用
收藏
页码：1082 / 1086
页数：5
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