| 用当地流活塞理论计算大攻角翼面超音速颤振 |
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| 引用本文： | 杨炳渊,宋伟力.用当地流活塞理论计算大攻角翼面超音速颤振[J].振动与冲击,1995,14(2):60-63,81. |
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| 作者姓名： | 杨炳渊 宋伟力 |
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| 作者单位： | 上海航天技术研究院总体设计部 |
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| 摘 要： | 本文应用当地流活塞理论，推导了弹性振动翼面的非定常压力分布以及用模态坐标表示的广义气动力系数矩阵，相应的颤振运动方程和特征方程，提出了可用于大攻角、有限厚度翼面超音速颤振计算的一种新的工程计算方法。算例表明方法的可行性和工程实用价值。
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| 关 键 词： | 颤振 大攻角翼面 活塞理论 有翼飞行器 超音速 |
SUPERSONIC FLUTTER CALCULATION OF A WING WITH ATTACK ANGLE BY LOCAL FLOW PISTON THEORY |
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| Yang Bingyuan, Song Weili.SUPERSONIC FLUTTER CALCULATION OF A WING WITH ATTACK ANGLE BY LOCAL FLOW PISTON THEORY[J].Journal of Vibration and Shock,1995,14(2):60-63,81. |
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| Authors: | Yang Bingyuan Song Weili |
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| Affiliation: | General Design Department of Shanghai Academy of Spaceflight Technology |
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| Abstract: | In this paper a new engineering approach is presented of flutter analysis by the local flow piston theory. Corresponding pressure distribution of unsteady flow for wing with elastic vibration, general aerodynamical coefficient matrix using modal coodinate, motion equation of flutter and flutter eigenequation are deduced. This method is available for supersonic flutter calculation of wing with attack angle and finite thickness. The results from numerical example show that this method is effective and practical value for engineering aplication. |
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| Keywords: | flutter wing with attack angle unsteady flow pistion theory local flow piston theory supersonic flow |
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