| 准静弹性飞机升力分布及气动导数计算 |
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| 引用本文： | 刘千刚,吴长霖,简政.准静弹性飞机升力分布及气动导数计算[J].航空学报,1982,3(1):1-11. |
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| 作者姓名： | 刘千刚 吴长霖 简政 |
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| 作者单位： | 西北工业大学 |
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| 摘 要： | 本文介绍一种准静弹性飞机气动特性的数值计算方法。可以用它来计算亚音速时弹性飞机的升力分布及11个主要的纵向气动导数。 文中附有算例,并对准静弹性飞机动态特性方面的一些问题进行了分析和讨论。 本文所得的导数可直接用于弹性飞机操纵性与稳定性的分析。
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| 收稿时间： | 1980-07-01; |
CALCULATION OF THE LIFT DISTRIBUTION AND AERODYNAMIC DERIVATIVES OF QUASI-STATIC ELASTIC AIRCRAFT |
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| Liu Qiangang,Wu Changlin,Jian Zheng.CALCULATION OF THE LIFT DISTRIBUTION AND AERODYNAMIC DERIVATIVES OF QUASI-STATIC ELASTIC AIRCRAFT[J].Acta Aeronautica et Astronautica Sinica,1982,3(1):1-11. |
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| Authors: | Liu Qiangang Wu Changlin Jian Zheng |
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| Institution: | Northwestern Polytechnical University |
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| Abstract: | A numerical method is presented for predicting the aerodynamic characteristics of elastic aircraft under quasi-static approximation. This method can be used to evaluate the lift distribution and 11 main longitudinal aerodynamic derivatives of elastic aircraft at subsonic speeds. The aerodynamic calculations are based on the Green's function method. The structure deformation is evaluated by the free structure influence coefficient method. The combination of these methods can provide an efficient, general and flexible aerodynamic tool for design of elastic aircraft.Several numerical examples are given and some dynamical problems of elastic aircraft are also discussed in this paper. The derivatives evaluated in this paper can be directly adopted in analysis of stability and control of elastic aircraft. |
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