一种非线性飞行控制律评估方法研究  

Method for clearance of nonlinear flight control laws research

作　　者：吕全喜[1] 占正勇[1] 

机构地区：[1]飞行自动控制研究所飞控部,陕西西安710065

出　　处：《飞行力学》2010年第1期20-23,28,共5页Flight Dynamics

基　　金：航空科学基金资助(2006ZC18003)

摘　　要：研究了一种基于改进遗传算法的非线性评估方法。将非线性准则转换成简单的适应度函数,通过寻优找到最坏情况,在其基础上实现评估。仿真结果表明,该方法不仅能在各个飞行状态对飞行控制律进行非线性准则评估,而且能找出飞行包线内的最坏飞行状态,细化飞行包线,方法使用灵活,结果可靠。A novel improved genetic based analysis method applied to clearance of flight control laws is proposed. By using fitness functions transformed from flight quality criteria, the technique can search for the set of parameters in the worst condition. And based on the obtained worse set, it can easily give out the clearance results. The simulations show that the improved genetic based clearance method can not only clear the flight control laws in the special flight condition, but also give the worst flight condition within the entire envelope and study the envelope, the method is agile and credible.

关 键 词：非线性 飞行控制律评估 改进遗传算法 迎角限制 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]