Non-linear dynamic analysis of rub-impact rotor supported by turbulent journal bearings with non-linear suspension

被引：24

作者：

Chang-Jian, Cai-Wan ^{[2
]}

Chen, Chao-Kuang ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mech Engn, Tainan 70101, Taiwan

[2] I Shou Univ, Dept Mech & Automat Engn, Kaohsiung, Taiwan

来源：

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2008年 / 50卷 / 06期

关键词：

turbulent journal bearing; non-linear suspension; rub-impact;

D O I：

10.1016/j.ijmecsci.2008.02.003

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study presents a dynamic analysis of a rub-impact rotor supported by two turbulent model journal bearings with non-linear suspension. The dynamics of the rotor center and bearing center are studied. The analysis of the rotor-bearing system is investigated under the assumptions of turbulent lubricant flow and a short bearing approximation. The spatial displacements in the horizontal and vertical directions are considered for various non-dimensional speed ratios and dimensionless unbalance parameter. The numerical results show that the stability of the system varies with the non-dimensional speed ratios and the non-dimensional unbalance parameters. The contribution of this study is to provide a further understanding of the characteristics and dynamic behaviors of the rotor-bearing system. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1090 / 1113

页数：24

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