| 碰摩转子系统振动响应的频率特征研究 |
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| 引用本文： | 张志禹,顾家柳,王月玲,汪文秉.碰摩转子系统振动响应的频率特征研究[J].机械科学与技术(西安),2002,21(1):102-104,107. |
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| 作者姓名： | 张志禹 顾家柳 王月玲 汪文秉 |
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| 作者单位： | [1]西安交通大学，西安710049 [2]西北工业大学，西安710072 |
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| 摘 要： | 以刚度为分段线性的 Jeffcott转子为转子与静子碰摩的简化模型 ,建立了系统的运动微分方程 ,在碰摩作用的时间间隔相同 ,且每次转子与静子接触时间极短的情况下 ,推导出了系统运动方程解的形式和系统振动响应的频率特征 ,证明了在这种假设下 ,系统呈周期或拟周期运动 ,数值计算也验证了这一结论
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| 关 键 词： | 碰摩转子系统 振动特征 运动微分方程 Poincare图 |
| 文章编号： | 1003-8728(2002)01-0102-03 |
Researches on Vibration Characteristics of a Rub-impact Rotor System in Frequency Domain |
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| ZHANG Zhi yu ,GU Jia liu ,WANG Yue ling ,WANG Wen bing.Researches on Vibration Characteristics of a Rub-impact Rotor System in Frequency Domain[J].Mechanical Science and Technology,2002,21(1):102-104,107. |
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| Authors: | ZHANG Zhi yu GU Jia liu WANG Yue ling WANG Wen bing |
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| Affiliation: | ZHANG Zhi yu 1,GU Jia liu 2,WANG Yue ling 1,WANG Wen bing 1 |
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| Abstract: | In this paper, vibration characteristics of a rotor system with rotor to stator rub impact are investigated, particularly focussing on analysis of the fault symptom of the system. A rub impact model based on Jeffcott rotor without considering vibration of the stator is analyzed, the vibration characteristics in frequency domain are investigated through analysis of the orbit, spectrum and Poincare map. In case of same interval of impact and transient contact time of rotor to stator, the expressions of solution are derived from the motion equation. It is confirmed by numerical calculation that the system exhibits periodic or quasi periodic vibration in this situation. |
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| Keywords: | Rub impact rotor system Vibration characteristics Motion equation Poincare map |
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