| 自适应挤压油膜阻尼器减振机理理论研究 |
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| 引用本文： | 马艳红,洪杰,赵福安.自适应挤压油膜阻尼器减振机理理论研究[J].北京航空航天大学学报,2004,30(1):5-8. |
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| 作者姓名： | 马艳红 洪杰 赵福安 |
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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 |
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| 摘 要： | 研究了带金属橡胶环自适应挤压油膜阻尼器ASFD/MRR(Adaptive Squeeze Film Damper with Metal Rubber outer-Ring)的减振机理,以ASFD/MRR和转子轴颈的受力分析和运动分析为基础,从N-S方程、流体连续方程出发,推导了ASFD/MRR的雷诺方程并求解了油膜压力场.对比ASFD/MRR和挤压油膜阻尼器SFD减振机理的特点,指出SFD仅是ASFD/MRR的特殊形式,ASFD/MRR具有抑制双稳态跳跃等非线性振动的能力,适用于更大的不平衡量范围.
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| 关 键 词： | 阻尼器 转子 减振 金属橡胶 |
| 文章编号： | 1001-5965(2004)01-0005-04 |
| 收稿时间： | 2002-09-19 |
| 修稿时间： | 2002年9月19日 |
Theoretical investigation of vibration attenuation mechanism of a adaptive squeeze film damper |
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| Ma Yanhong,Hong Jie,Zhao Fuan.Theoretical investigation of vibration attenuation mechanism of a adaptive squeeze film damper[J].Journal of Beijing University of Aeronautics and Astronautics,2004,30(1):5-8. |
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| Authors: | Ma Yanhong Hong Jie Zhao Fuan |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | Vibration attenuation mechanism of an adaptive squeeze film damper with metal rubber outer-ring(ASFD/MRR) was investigated. Based on static strength analysis and motional analysis of an ASFD/MRR and an axes-s neck of rotor, Reynold equations were deduced from Nevier-Stockes equation and liquid continuous equation,and pressure field of squeeze film was solved. Comparing vibration attenuation mechanism of ASFD/MRR with a squeeze film damper(SFD), the result indicates that SFD is a special form of ASFD/MRR. ASFD/MRR can markedly restrain the occurrence of nonlinear vibration phenomenon such as bistable characteristic and it can be suitable for wider range of unbalance level. |
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| Keywords: | dampers rotors vibration attenuation metal rubber |
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