用最优轨迹分析法研究战斗机的敏捷性

摘要

Evaluation of several functional fighter agility metrics using optimal trajectory analysis is introduced. The problem is settled by transforming optimal control question into parameter optimal question to gain the optimization using non-linear mathematic programming theory. When the different maximum attack angles and the thrusts of representative aircraft are changed, its optimal control strategies are acquired. The simulational results indicate that properly increasing the maximum attack angle and the thrust can increase turn rate and reduce turn time. So the function agility is improved.%利用最优轨迹分析法确定战斗机的敏捷性，并将最优控制问题转换为参数优化问题，由非线性数学规划理论解出最优参数变化规律。从典型示例飞机分析了不同迎角限制和推力下的控制策略及对功能敏捷性的影响。仿真结果表明，在转弯过程中适当放宽迎角限制和增加推力都能增大转弯速率，缩短转弯时间，从而改善飞机的功能敏捷性。