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| 浮环轴承非线性耦合动力润滑特性 | |
| 引用本文： | 杨金福,陈策,袁平,吴文峰,董春伟.浮环轴承非线性耦合动力润滑特性[J].航空动力学报,2009,24(2):365-370. |
| 作者姓名： | 杨金福 陈策 袁平 吴文峰 董春伟 |
| 作者单位： | 1. 中国科学院工程热物理研究所,北京,100190 2. 哈尔滨东安发动机有限(集团)公司,哈尔滨,150066 3. 华北电力大学能源动力工程学院,北京,102206 |
| 基金项目： | 国家高技术研究发展计划 |
| 摘 要： | 针对浮环轴承-柔性转子结构的某型微型燃机实验结果的分析,结合浮环轴承非线性耦合动力润滑的机理研究,进一步研究与探讨了浮环轴承流固耦合润滑的非线性行为.给出了浮环轴承存在的五种典型非线性振动的频率特征,阐明了转子临界区域工频振动特征与转子涡动频率谐波振动特征的区别与联系,同时也明确了相应的振动抑制或消除的措施及方法.根据单膜润滑油膜承载能力及涡动速度的解析表达式,论证了浮环轴承半速涡动的频率特征及其稳定性.试验证明,浮环内、外油膜半速涡动与油膜振荡现象的涡动比接近于0.5与0.3,并且理论与实验具有很好的一致性.这为浮环轴承的设计及性能研究提供了相应理论与实验的依据. |
| 关 键 词： | 浮环轴承 柔性转子 非线性 润滑机理 |
| 收稿时间： | 1/3/2008 1:11:17 PM |
| 修稿时间： | 2008/6/10 0:00:00 |
Research on nonlinear fluid-solid interaction dynamic lubrication in floating ring bearings |
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| YANG Jin-fu,CHEN Ce,YUAN Ping,WU Wen-feng and DONG Chun-Wei.Research on nonlinear fluid-solid interaction dynamic lubrication in floating ring bearings[J].Journal of Aerospace Power,2009,24(2):365-370. | |
| Authors: | YANG Jin-fu CHEN Ce YUAN Ping WU Wen-feng and DONG Chun-Wei |
| Institution: | Institute of Engineering Thermo physics, Chinese Academy of Sciences,Harbin Dong an Power Ltd,Institute of Engineering Thermo physics, Chinese Academy of Sciences |
| Abstract: | An experiment of floating ring bearings and flexible rotor in a micro turbo-engine was presented.Some nonlinear behaviors of fluid-solid interaction in floating bearings were studied.And nonlinear frequency characteristics of five typical vibrations in floating ring bearings were presented.Furthermore,the difference and correlation between power frequency characteristic in critical speed range and whirl frequency harmonic response characteristic were illustrated.At the same time,the method to control vibrat... |
| Keywords: | floating ring bearings flexible rotor nonlinear lubrication mechanism |
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