| 弹性环式挤压油膜阻尼器实验研究与应用 |
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| 引用本文： | 周明,李其汉,晏砺堂. 弹性环式挤压油膜阻尼器实验研究与应用[J]. 航空动力学报, 1998, 13(4): 409-412,460 |
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| 作者姓名： | 周明 李其汉 晏砺堂 |
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| 作者单位： | 1.清华大学热能工程系动控教研室 |
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| 摘 要： | 实验证实了弹性环式挤压油膜阻尼器（ＥＲＳＦＤ）的油膜阻尼的存在，并研究了ＥＲＳＦＤ的减振、调频特性。将ＥＲＳＦＤ应用于某核心机减振、调频，其效果很好，ＥＲＳＦＤ在某核心机上获得成功应用。实验和应用研究表明ＥＲＳＦＤ有优良的减振、调频性能。
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| 关 键 词： | 油膜 阻尼器 弹性支座 调频 减振 |
| 收稿时间： | 1998-03-01 |
| 修稿时间： | 1998-07-01 |
EXPERIMENTAL INVESTIGATION AND APPLICATION OF AN ELASTIC RING SQUEEZE FILM DAMPER |
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| Zhou Min,Li Qihan and Yan Litang. EXPERIMENTAL INVESTIGATION AND APPLICATION OF AN ELASTIC RING SQUEEZE FILM DAMPER[J]. Journal of Aerospace Power, 1998, 13(4): 409-412,460 |
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| Authors: | Zhou Min Li Qihan Yan Litang |
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| Affiliation: | 2.4th Dept.Beijing University of Aeronautics and Astronautics,Beijing 100083 |
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| Abstract: | An experimental investigation on a model of rotor support system with Elastic Ring Squeeze Film Damper (ERSFD) was completed in the case of supplying oil for the squeeze oil film damping during rotor system operation.The dynamic characteristic experiments including vibration damping and frequency retuning characteristics of the model of rotor support system with EQSFD were conducted.It is proved true that the ERSFD possesses very good properties for both vibration damping and freqnency retuning.At last,the ERSFD has been used successfully in the rotor system of a given core aero-engine.It is indicated that the ERSFD can adjust the critical speeds of the rotor system to meet the demands of engine operation and control the vibration of whole core engine very well. |
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| Keywords: | Oil film Damper Elastic supports Frequency retuning Vibration damping |
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