| 不对称润滑工况下碰摩转子-轴承系统的动力学分析 |
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| 引用本文： | 陈宏,李小彭,张晓伟,闻邦椿. 不对称润滑工况下碰摩转子-轴承系统的动力学分析[J]. 中国机械工程, 2004, 15(18): 1647-1650 |
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| 作者姓名： | 陈宏 李小彭 张晓伟 闻邦椿 |
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| 作者单位： | 东北大学机械工程与自动化学院,沈阳,110004 |
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| 基金项目： | 国家自然科学基金资助项目 (5 0 2 75 0 2 4)，沈阳市科技局资助项目 (10 2 2 0 41-1-0 9) |
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| 摘 要： | 在考虑非线性油膜力的基础上，建立了具有碰摩故障的转子一轴承系统的动力学模型。研究了具有碰摩故障的转子在两支承轴承使用相同和不同粘度润滑剂时的动力学行为，发现随着一端轴承润滑油粘度的降低，转子的混沌区域和拟周期区域扩大了。该结果为采用不同粘度润滑剂的转子一轴承系统的故障诊断提供了依据。
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| 关 键 词： | 转子—轴承系统 混沌 碰摩 故障 非线性油膜力 润滑油 粘度 |
| 文章编号： | 1004-132X(2004)18-1647-04 |
Dynamic Analysis of Rotor-bearing Systems with Rub-impact Fault in Unsymmetrical Lubricant Operating Conditions |
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| Chen Hong Li Xiaopeng Zhang Xiaowei Wen Bangchun Northeastern University,Shenyang. Dynamic Analysis of Rotor-bearing Systems with Rub-impact Fault in Unsymmetrical Lubricant Operating Conditions[J]. China Mechanical Engineering, 2004, 15(18): 1647-1650 |
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| Authors: | Chen Hong Li Xiaopeng Zhang Xiaowei Wen Bangchun Northeastern University Shenyang |
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| Affiliation: | Chen Hong Li Xiaopeng Zhang Xiaowei Wen Bangchun Northeastern University,Shenyang,110004 |
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| Abstract: | Considering the influences of the nonlinear oil-film force and lubricant oil viscosity, a dynamic model was set up for rotor-bearing system with rub-impact faults. The dynamic behaviors of rotor with rub-impact faults was investigated when using the same viscosity lubricant oils and different ones on both supporting bearings. The results show that within the sub-critical speed ranges the chaotic and quasi-period regions increase with the decreasing of the lubricant oil viscosity in one of two supporting bearings. The results provide a reference for the fault diagnosis of rotor-bearing system lubricated with different viscosity lubricant oils. |
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| Keywords: | rotor-bearing system chaos rub-impact fault nonlinear oil-film force lubricant oil viscosity |
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