| 带弹性阻尼支承的转子系统丢失叶片瞬态响应试验研究 |
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| 引用本文： | 李其汉,赵福安,张世平. 带弹性阻尼支承的转子系统丢失叶片瞬态响应试验研究[J]. 航空动力学报, 1992, 7(2): 103-107,191 |
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| 作者姓名： | 李其汉 赵福安 张世平 |
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| 作者单位： | 北京航空航天大学 100083 |
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| 摘 要： | 本文对带弹性阻尼支承的转子系统由于丢失叶片产生的瞬态响应给出了系统的实验研究结果。进行了不同转速和不同挤压油膜阻尼器(SFD)油膜间隙情况下转子上施加不同的突加不平衡量的实验。在阻尼器处由极限圆表征的不稳定门限值可以确定;全面地观察到转子系统由于非线性引起的一些特殊现象,如“锁死”、双稳态跳跃和亚协调进动等。分析了SFD抑制转子系统不稳定的有效性和能力。
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| 关 键 词： | 突加不平衡 弹性阻尼支承 转子系统 瞬态响应试验 挤压油膜阻尼器 叶片 响应轨迹 油膜间隙 模型转子 极限圆 |
| 收稿时间： | 1991-01-01 |
EXPERIMENTAL INVESTIGATION ON BLADE LOSS TRANSIENT RESPONSE OF ROTOR WITH FLEXIBLE DAMPED SUPPORT |
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| Li Qihan,Zhao Fuan and Zhang Shiping. EXPERIMENTAL INVESTIGATION ON BLADE LOSS TRANSIENT RESPONSE OF ROTOR WITH FLEXIBLE DAMPED SUPPORT[J]. Journal of Aerospace Power, 1992, 7(2): 103-107,191 |
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| Authors: | Li Qihan Zhao Fuan Zhang Shiping |
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| Affiliation: | Beijing University of Aeronautics & Astronautics,Beijing 100083 |
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| Abstract: | A rotor system with flexible damped support has been investigated experimentally under the conditions of simulated blade loss.Some results of the transient response dynamics are presented.Experiments under different sudden unbalances applied to the rotor system with various Squeeze Film Damper (SFD) film clearances were performed at different rotational speeds.The instability conditions characterized by limiting circle orbits for large amplitude at damper location can be determined,and some particular phenomena caused by nonlinearity of the rotor system such as lock up,bistable jump and subharmonic etc.have been observed.The effectiveness and the capability of SFD for suppressing instability of the rotor system are analyzed. |
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