| 考虑二次流效应的叶片颤振预估方法 |
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| 引用本文： | 李克俭,张扬军,陶德平.考虑二次流效应的叶片颤振预估方法[J].航空动力学报,1995,10(2):121-123,198. |
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| 作者姓名： | 李克俭 张扬军 陶德平 |
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| 作者单位： | 北京航空航天大学;北京航空航天大学;北京航空航天大学 |
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| 基金项目： | 国家自然科学基金;航空科学基金 |
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| 摘 要： | 采用流线曲率法和Adkins-Smith二次涡模型相结合的方法得到周向非均匀的定常流场, 再与变叶片间相角的变形激盘法相结合发展了考虑二次流效应的三维叶片颤振预估方法, 并用此方法对BF-1-2转子的气弹稳定性进行了分析。结果表明, 考虑二次流效应计算的颤振边界与实验一致。不同二次流与叶片颤振的相关性中尖部漏流涡对叶片气弹稳定性的影响较大。
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| 关 键 词： | 二次流 叶片 气动力弹性 稳定性 预测 |
| 收稿时间： | 5/1/1994 12:00:00 AM |
| 修稿时间： | 9/1/1994 12:00:00 AM |
A BLADE FLUTTER PREDICTION METHOD INCLUDING SECONDARY FLOW EFFECTS |
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| Li Kejian,Zhang Yangjun and Tao Deping.A BLADE FLUTTER PREDICTION METHOD INCLUDING SECONDARY FLOW EFFECTS[J].Journal of Aerospace Power,1995,10(2):121-123,198. |
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| Authors: | Li Kejian Zhang Yangjun and Tao Deping |
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| Institution: | 4th Dept.,Beijing University of Aeronautics and Astronautics,Beijing 100083;4th Dept.,Beijing University of Aeronautics and Astronautics,Beijing 100083;4th Dept.,Beijing University of Aeronautics and Astronautics,Beijing 100083 |
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| Abstract: | In order to obtain a better understanding of the secondary flow effects on blade stall flutter,this paper presents an approximate method to analyse the effects of secondary flow on blade aeroelastical stability.The method combines conventional streamline curvature methods with the secondary flow model to obtain the stationary flow with circumferential nonuniformity,and then incorporates the non constant phase angle deforming actuator disk method.Several secondary flow effects on aeroelastical stability were analysed respectively.The results show that the effects of the secondary flow on the aeroelastical stability are different.The tip leakage vortex may have greater effect than other vortexes,that is consistent with the experimental results. |
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| Keywords: | Secondary flow Blade Aeroelastical Stability Predictions |
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