| 转子支承动刚度对转子动力特性的影响分析 |
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| 引用本文： | 洪杰,王华,肖大为,陈萌.转子支承动刚度对转子动力特性的影响分析[J].航空发动机,2008,34(1):23-27. |
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| 作者姓名： | 洪杰 王华 肖大为 陈萌 |
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| 作者单位： | 1. 北京航空航天大学,能源与动力工程学院,北京,100083
2. 沈阳发动机设计研究所,沈阳,110015 |
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| 摘 要： | 针对转子支承动刚度对转子动力特性的影响,分别运用静刚度、动刚度和整机有限元模型对某型发动机进行了转子动力特性计算,并对各种计算结果进行了比较和分析;分析了转子支承动刚度剧烈变化的原因,同时,指出运用整机模型能够分析支承动刚度和各种机匣的局部振动对整机振动的影响。
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| 关 键 词： | 航空发动机 转子 动刚度 动力特性 |
| 修稿时间： | 2007年7月17日 |
Effects of Dynamic Stiffness of Rotor Bearing on Rotordynamic Characteristics |
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| Authors: | HONG Jie WANG Hua XIAO Da-wei CHEN Meng |
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| Abstract: | The calculations of rotordynamic characteristics for an aeroengine were performed respectively by the static stiffness,dynamic stiffness and engine finite element model for the rotordynamics characteristics affected by dynamic stiffness of the rotor bearing.The various calculation results were compared and analyzed.The reasons of drastic change of the dynamic stiffness of rotor bearing were analyzed.The effects of the dynamic stiffness of rotor bearing and the local vibrations of various casings on the engine vibration could be analyzed by the engine model. |
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| Keywords: | aeroengine rotor dynamics stiffness dynamic characteristics |
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