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首页> 外文期刊>The Aeronautical Journal >Flight Mechanics Of A Free-wing Tilt-body Aircraft
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Flight Mechanics Of A Free-wing Tilt-body Aircraft

机译：自由翼倾斜式飞机的飞行力学

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The free-wing tilt-body aircraft refers to a vehicle configuration in which the wing, fuselage, and empennage are in a longitudinally articulated connection. This allows the main wing to freely rotate relative to the body, while the empennage, which is in the form of a long twin boom connected to the rear of the body, changes its incidence angle relative to the body in response to external commands. The principal advantages claimed for the configuration are short takeoff and landing capability, and reduced gust sensitivity. The aerodynamics of the free-wing tilt-body configuration has been previously studied, but analysis of its flight mechanics is limited. In this paper we present derivations of the flight dynamic equations of motion using multi-body dynamic modelling techniques, and combine the resulting equations of motion with experimental aerodynamic data to achieve a nonlinear mathematical model for flight simulation of a generic free-wing tilt-body vehicle. The mathematical model is suitable for the study of detailed dynamic characteristics as well as for model based control law synthesis. Key flight performance, and stability and control characteristics of a generic configuration are obtained from the mathematical model.
机译：自由翼倾斜体飞机是指机翼，机身和尾翼处于纵向铰接连接的飞行器配置。这使得主翼可以相对于机身自由旋转，而尾翼则是连接在机身后部的长双臂杆形式，可以响应于外部指令改变其相对于机身的入射角。该配置声称的主要优点是起飞和降落能力短，阵风敏感度降低。先前已经研究了自由翼倾斜体构型的空气动力学特性，但是对其飞行力学的分析是有限的。在本文中，我们介绍了使用多体动力学建模技术得出的飞行动力学方程，并将所得的运动方程与实验空气动力学数据相结合，从而获得了用于通用自由翼倾斜体飞行仿真的非线性数学模型车辆。该数学模型适合于研究详细的动态特性以及基于模型的控制律综合。从数学模型可以获得关键飞行性能以及通用配置的稳定性和控制特性。

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