| 碰摩转子系统的混沌特性 |
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| 引用本文： | 褚福磊,张正松,冯冠平.碰摩转子系统的混沌特性[J].清华大学学报(自然科学版),1996(7). |
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| 作者姓名： | 褚福磊 张正松 冯冠平 |
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| 作者单位： | 清华大学精密仪器与机械学系 |
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| 摘 要： | 基于旋转机械故障诊断的需要，分析了一个由油膜轴承支承的转子系统在转子与定子碰摩时的振动特征，模型考虑了碰撞时定子的线性变形以及摩擦时的库仑摩擦。分析表明，系统除具有各种形式的周期和概周期振动以外，还具有丰富的混沌运动与分叉现象。碰摩转子系统所展示的混沌运动以及所具有的各种现象，作为这类系统的显著特征，可以用于诊断汽轮发电机组中经常发生的碰摩故障
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| 关 键 词： | 转子系统 混沌 碰摩 故障诊断 分叉现象 |
Chaotic behavior of a rub rotor model |
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| Chu Fulei,Zhang Zhengsong,Feng Guanping.Chaotic behavior of a rub rotor model[J].Journal of Tsinghua University(Science and Technology),1996(7). |
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| Authors: | Chu Fulei Zhang Zhengsong Feng Guanping |
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| Affiliation: | Chu Fulei,Zhang Zhengsong,Feng GuanpingDepartment of Precision Instruments and Mechanology,Tsinghua University |
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| Abstract: | To meet the requirement of fault diagnosis for rotating machinery, the vibration characteristics of a rotor system with rotor stator rub interaction and supported on oil film bearings are investigated theoretically. Linear deformation of the stator and a Coulomb type of frictional relationship were considered in the model. It is indicated that besides periodic and quasi periodic vibrations the system shows different forms of chaotic motion and bifurcation phenomena. Chaotic motion and various related phenomena found in the rub rotor system, as one feature of this type, can be used to diagnose the rotor stator rub fault often happened in power generating equipment. |
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| Keywords: | rotor systems chaos rub fault diagnosis bifurcation phenomenon |
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