| 油膜支承转子系统动静件碰摩特征分析 |
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| 引用本文： | 万方义,许庆余,张小龙,许清源.油膜支承转子系统动静件碰摩特征分析[J].应用力学学报,2003,20(2):17-21. |
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| 作者姓名： | 万方义 许庆余 张小龙 许清源 |
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| 作者单位： | 1. 西安交通大学,西安,710049
2. 西安交通大学,西安,710049;西安建筑科技大学,西安,710055 |
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| 基金项目： | 国家自然科学基金资助 (批准号 5 0 2 75 113 ) |
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| 摘 要： | 以支承在油膜轴承上的Jeffcott转子为对象，分析了油膜力对碰摩转子动力学行为的影响。通过与刚支情形对比，发现油膜力是耦合作用于碰摩转子系统，有时能够抑制振动，有时却加剧振动。因此实际转子碰摩故障诊断过程中，必须在充分考虑支承情况的基础上建立合理的非线性动力学模型，才能为实际转子系统的碰摩故障分析提供必要的理论依据。
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| 关 键 词： | 转子系统 油膜力 碰摩特征 非线性动力学 故障分析 转子动力学 故障诊断 油膜轴承 |
| 文章编号： | 1000-4939(2003)02-0017-05 |
| 修稿时间： | 2002年3月28日 |
Analysis on the Characteristics of Rotor System with Rotor and Stator Rubbing Against Oil Film Bearing |
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| Wan Fangyi Xu Qingyu Zhang Xiaolong , Xu Qingyuan.Analysis on the Characteristics of Rotor System with Rotor and Stator Rubbing Against Oil Film Bearing[J].Chinese Journal of Applied Mechanics,2003,20(2):17-21. |
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| Authors: | Wan Fangyi Xu Qingyu Zhang Xiaolong Xu Qingyuan |
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| Institution: | Wan Fangyi 1 Xu Qingyu 1 Zhang Xiaolong 1,2 Xu Qingyuan 1 |
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| Abstract: | In this paper, a Jeffcott rotor against oil film bearing is investigated. And the effect of the oil film force on the rubbing rotor is analyzed too. Comparing with the rigid supported rotor, it is found that the film force heavily affects the response of the rotor and to some extent restricts or aggravates the rub impact faults. So, to diagnose the rub impact faults of a practical rotor, the bearing condition must be taken into account and a dynamic nonlinear model must be set up too. Moreover, the results also show that the rubbing rotor is not sensitive to the bearing parameters. All these may be useful to diagnose rub impact faults of a practical rotor. |
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| Keywords: | rotor system rub nonlinear dynamics oil film bearing fault diagnosis |
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