| 碰摩转子-轴承系统周期运动稳定性分析 |
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| 引用本文： | 杜元虎,张松鹤,昂雪野,刘晓东.碰摩转子-轴承系统周期运动稳定性分析[J].汽轮机技术,2005,47(3):170-172. |
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| 作者姓名： | 杜元虎 张松鹤 昂雪野 刘晓东 |
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| 作者单位： | 大连民族学院,大连,116600;大连民族学院,大连,116600;大连民族学院,大连,116600;大连民族学院,大连,116600 |
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| 摘 要： | 在同时考虑轴承油膜力和碰摩发生时转定子问的相对速度对非线性摩擦力的影响基础上，构造了具有碰摩故障转子一轴承系统的动力学模型，利用求解非线性非自治系统周期解的延拓打靶法和Floquet理论，研究了系统周期运动的稳定性。发现碰摩转子一轴承系统在不同的转速下会发生鞍结分岔、倍周期分岔和Hopf分岔等现象。研究结果为转子一轴承系统的故障诊断提供了一定的参考。
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| 关 键 词： | 转子-轴承系统 碰摩 稳定性 分岔 混沌 |
| 文章编号： | 1001-5884(2005)03-0170-03 |
| 修稿时间： | 2005年4月10日 |
The Stability Analysis of Periodic Motion on the Rotor-Bearing System with Rub-Impact Fault |
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| DU Yuan-hu,ZHANG Song-he,ANG Xue-ye,LIU Xiao-dong.The Stability Analysis of Periodic Motion on the Rotor-Bearing System with Rub-Impact Fault[J].Turbine Technology,2005,47(3):170-172. |
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| Authors: | DU Yuan-hu ZHANG Song-he ANG Xue-ye LIU Xiao-dong |
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| Abstract: | Considering the nonlinear oil-film force and influence of nonlinear friction force, a dynamic model was set up for the rotor-bearing system with rub-impact fault. Using the continuation-shooting algorithm for periodic solution of nonlinear non-autonomous system, the stability of the system periodic motion was studied by the Floquet theory. The saddle-node bifurcation, period-doubling bifurcation and the Hopf bifurcation were found. The conclusions provide a theoretic basis reference for the failure diagnosis of the rotor-bearing system with rub-impact fault. |
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| Keywords: | rotor-bearing system rub-impact fault stability bifurcation chaos |
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