| 飞机横-航向耦合模态特性和飞行品质优化研究 |
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| 引用本文： | 郑本武,夏伟国.飞机横-航向耦合模态特性和飞行品质优化研究[J].飞行力学,1991(4). |
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| 作者姓名： | 郑本武 夏伟国 |
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| 作者单位： | 南京航空学院，南京航空学院 |
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| 摘 要： | 本文阐述了飞机横—航向耦合的形成机理,研究了气动外形参数变化对滚转-螺旋耦合模态的影响。文中提出对横—航向模态特性进行优化的算法,该算法对飞机的改型和初步设计有一定的参考价值。最后对某歼击机的横—航向模态特性进行了优化计算,计算结果表明,该机在许多状态下的飞行品质得到了提高。
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| 关 键 词： | 横—航向耦合 滚转—螺旋耦合模态 横—航向模态特性 |
INVESTIGATION OF THE LATERAL DIRECTIONAL COUPLING MODES OF AIRCRAFT AND OF OPTIMIZATION OF FLYING QUALITIES |
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| Zheng Benwu,Xia Weiguo.INVESTIGATION OF THE LATERAL DIRECTIONAL COUPLING MODES OF AIRCRAFT AND OF OPTIMIZATION OF FLYING QUALITIES[J].Flight Dynamics,1991(4). |
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| Authors: | Zheng Benwu Xia Weiguo |
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| Institution: | Nanjing Aeronaticat Institute |
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| Abstract: | This paper describes the mechanism of the lateral-directional coupling formation of aircraft and investigates the influence of geometric parameters of aircraft on coupled roll-spiral mode. A method of optimizing the lateral-directional modes is presented in this paper. This optimization method is useful for initial design and reformation of aircraft. These lateral-directional modes are calculated by using optimization techniques. The results indicate that the flying qualities have been improved in many flight conditions. |
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| Keywords: | lateral-directional coupling coupled roll-spiralmode lateral-directional modes |
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