| 自适应挤压油膜阻尼器减振机理研究 |
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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研究[J].北京航空航天大学学报,2003,29(2):173-177. |
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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 动力系 |
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| 摘 要： | 提出了一种带有金属橡胶外环的自适应挤压油膜阻尼器ASFD/MRR(Adaptive Squeeze Film Damper with Metal Rubber outer-Ring),它利用环形金属橡胶的弹性变形来调整油膜间隙,以达到油膜阻尼器最佳的减振效果,所进行的实验研究表明:对ASFD/MRR减振机理的理论预测和实验结果具有良好的一致性,该阻尼器在优化设计下,油膜间隙可以得到良好的控制,能明显抑制非线性振动现象的发生,具有良好的减振性能.
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| 关 键 词： | 阻尼器 转子 减振 金属橡胶 |
| 文章编号： | 1001-5965(2003)02-0173-05 |
| 收稿时间： | 2001-12-20 |
| 修稿时间： | 2001年12月20日 |
Vibration Attenuation Mechanism Investigation of a Adaptive Squeeze Film Damper |
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| Ma Yanhong,Hong Jie,Zhao Fuan.Vibration Attenuation Mechanism Investigation of a Adaptive Squeeze Film Damper[J].Journal of Beijing University of Aeronautics and Astronautics,2003,29(2):173-177. |
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| Authors: | Ma Yanhong Hong Jie Zhao Fuan |
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| Institution: | Dept.of Propulsion, Beijing University of Aeronautics and Astronautics |
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| Abstract: | An ASFD/MRR (Adaptive Squeeze Film Damper with Metal Rubber outer Ring) was designed to improve the high non linearity of oil film force of conventional SFD (Squeeze Film Damper). The ASFD/MRR can effectively reduce vibration due to its ability of automatically adjusting the film clearance by elastic deformation of the metal rubber. Experimental results indicated that ASFD/MRR can control the clearance of the film and its oil film force characteristics are better than those of SFD. If ASFD/MRR can markedly restrain the occurrence of nonlinear vibration phenomenon such as bistable characteristic, lockup and non synchronous motion, 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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