| 高速柔性转子系统非线性振动响应特征分析 |
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| 引用本文： | 洪杰,于欢,肖森,马艳红.高速柔性转子系统非线性振动响应特征分析[J].北京航空航天大学学报,2018,44(4):653-661. |
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| 作者姓名： | 洪杰 于欢 肖森 马艳红 |
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| 作者单位： | 北京航空航天大学 能源与动力工程学院,北京100083;先进航空发动机协同创新中心,北京100083;北京航空航天大学 能源与动力工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金(51575022) National Natural Science Foundation of China(51575022) |
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| 摘 要： | 针对高速柔性转子多支点支承的结构特点及转子动力特性设计的需要，分析松动支承对转子动力特性的影响，仿真研究得到多支点支承高速柔性转子系统的非线性振动响应特征。研究结果表明：工作在多阶临界转速以上的转子系统，存在松动支承时，工作中的柔性转子可能存在周期、拟周期、混沌运动。进而研究了松动支承位置、不平衡量、松动间隙等参数对多支点支承柔性转子振动响应的影响，分析结果为多支点支承高速柔性转子系统的动力学设计提供了理论方法。
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| 关 键 词： | 高速柔性转子 松动支承 非线性振动 动力响应 动力学设计 |
| 收稿时间： | 2017-04-28 |
Nonlinear vibration response characteristics of high-speed flexible rotor system |
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| HONG Jie,YU Huan,XIAO Sen,MA Yanhong.Nonlinear vibration response characteristics of high-speed flexible rotor system[J].Journal of Beijing University of Aeronautics and Astronautics,2018,44(4):653-661. |
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| Authors: | HONG Jie YU Huan XIAO Sen MA Yanhong |
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| Abstract: | According to the multi-supported structure feature of high-speed flexible rotor and with the demand of rotor dynamic design, the influence of the bearing looseness on the rotor dynamic was analyzed. The nonlinear vibration response characteristics of the high-speed flexible rotor system were obtained through simulation.The results show that when the working speed of rotor is above the critical speed, the periodic, quasi-periodic and chaos can exist when the flexible rotor working.Furthermore, the influence of location of bearing looseness,value of unbalance and bearing clearance on the vibration response of multi-supported flexi-ble rotor was studied.The analysis results provide theoretical method for dynamic design of multi-supported high-speed flexible rotor system. |
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| Keywords: | high-speed flexible rotor bearing looseness nonlinear vibration dynamic response dynamic design |
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