| 弹性飞行器飞行载荷与动态特性分析 |
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| 引用本文： | 吴志刚,杨超.弹性飞行器飞行载荷与动态特性分析[J].中国航空学报,2004,17(1):17-22. |
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| 作者姓名： | 吴志刚 杨超 |
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| 作者单位： | School of Aeronautic Science and Technology，Beijing University of Aeronautics and Astronautics，School of Aeronautic Science and Technology，Beijing University of Aeronautics and Astronautics Beijing100083，China，Beijing100083，China |
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| 基金项目： | High techResearchandDevelopmentProgramofChina |
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| 摘 要： | 在综合考虑了刚体运动自由度和弹性自由度的弹性飞行器运动方程的基础上 ,采用了线性气动力的影响系数形式 ,提出了一套飞行载荷与动态特性分析的方程和方法 ,用于解决飞行力学和气动弹性力学中的静气动弹性发散、配平与结构变形、气动载荷分布、颤振与飞行动态特性等问题。算例表明 ,该方法有效可行 ,且对于大柔性飞行器 ,刚体运动模态与弹性模态之间的耦合是显著的 ,应予以重视。
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| 关 键 词： | 弹性飞行器 气动弹性 飞行动力学 飞行载荷 |
Flight Loads and Dynamics of Flexible Air Vehicles |
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| WU Zhi-gang,YANG Chao.Flight Loads and Dynamics of Flexible Air Vehicles[J].Chinese Journal of Aeronautics,2004,17(1):17-22. |
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| Authors: | WU Zhi-gang YANG Chao |
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| Abstract: | Based on the equations of motion of flexible air vehicles including rigid-body modes and elastic structural modes, and applying influence coefficients of linear aerodynamics, a set of equations are derived and a method is presented for analysis of flight loads and dynamic characteristics. The problems in the fields of flight mechanics and aeroelasticity such as static aeroelastic divergence, trim and deformation, aerodynamic loads distribution, flutter and flight dynamics can be solved by the procedure. An airplane with high aspect ratio wings is analyzed, and the results show that the coupling between rigid-body modes and elastic modes is distinct and should not be overlooked. |
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| Keywords: | flexible air vehicle aeroelasticity flight dynamics flight load |
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