| 气膜约束对轴系固有频率影响的试验 |
| |
| 引用本文： | 韩东江,杨金福,张占一.气膜约束对轴系固有频率影响的试验[J].航空动力学报,2012,27(7):1646-1651. |
| |
| 作者姓名： | 韩东江 杨金福 张占一 |
| |
| 作者单位： | 1. 中国科学院工程热物理研究所,北京100190 中国科学院研究生院,北京100039
2. 中国科学院工程热物理研究所,北京,100190 |
| |
| 基金项目： | 国家重点基础研究发展计划(2010CB227306) |
| |
| 摘 要： | 对10kg转子进行自由状态和有气膜约束两种状态下的试验模态分析,试验结果给出了转子平动、锥动和一阶弯曲时的固有频率及其振型等模态参数,分析了轴承供气压力变化对轴系固有频率的影响.进行了轴系升降速试验,结果表明:气膜约束下的模态分析结果比自由状态下的更接近于升降速试验的结果.试验结果为气体轴系固有频率的确定以及控制参数的选取提供了依据,也为下一步轴系振动控制奠定了基础.
|
| 关 键 词： | 气膜约束 模态分析 固有频率 轴承供气压力 振动控制 气体轴承-转子系统(轴系) |
| 收稿时间： | 9/2/2011 12:00:00 AM |
Experiment on effect of gas film constraint on natural frequency of gas bearing-rotor system |
| |
| HAN Dong-jiang,YANG Jin-fu and ZHANG Zhan-yi.Experiment on effect of gas film constraint on natural frequency of gas bearing-rotor system[J].Journal of Aerospace Power,2012,27(7):1646-1651. |
| |
| Authors: | HAN Dong-jiang YANG Jin-fu and ZHANG Zhan-yi |
| |
| Institution: | Institute of Engineering Thermo physics, Chinese Academy of Sciences,Beijing 100190,China;Graduate University of Chinese Academy of Sciences,Beijing 100039,China;Institute of Engineering Thermo physics, Chinese Academy of Sciences,Beijing 100190,China;Institute of Engineering Thermo physics, Chinese Academy of Sciences,Beijing 100190,China |
| |
| Abstract: | Experimental modal analysis (EMA) was presented on the 10kg rotor in free constraint state and gas film constraint state.The experimental results were given including rotor translation,conical moving and the first bending natural frequency and modal shape.The effect of gas film constraint on natural frequency of gas bearing-rotor system was analyzed by the experiment.EMA under gas film constraint was closer to the raising speed experimental results.The results provide a basis to determine the natural frequency of the gas shaft and to choose the control parameters.Also,it lays a foundation for vibration controlling of the gas bearing-rotor system. |
| |
| Keywords: | gas film constraint modal analysis natural frequency bearing supply pressure vibration controlling gas bearing-rotor system (GBRS) |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
