飞机横-航向耦合模态特性和飞行品质优化研究  

INVESTIGATION OF THE LATERAL DIRECTIONAL COUPLING MODES OF AIRCRAFT AND OF OPTIMIZATION OF FLYING QUALITIES

作　　者：郑本武 夏伟国[1] 

机构地区：[1]南京航空学院

出　　处：《飞行力学》1991年第4期39-50,共12页Flight Dynamics

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。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.

关 键 词：横航向耦合 耦合模态 飞行品质 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程]