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.
出处
《飞行力学》
CSCD
北大核心
1991年第4期39-50,共12页
Flight Dynamics
关键词
横航向耦合
耦合模态
飞行品质
lateral-directional coupling
coupled roll-spiralmode
lateral-directional modes.
