基于MatLab的俯仰轴等效系统拟配及飞行品质评价

Pitch Axis Equal System Match and Flying Quality Evaluation Based on MatLab

阐述了在MatLab软件中采用阻尼最小二乘法进行飞机等效系统拟配时所遇到的问题及解决方法,并在此基础上按照等效系统准则对某小型飞机进行俯仰轴短周期飞行品质评价,结果表明在MatLab中进行等效系统拟配——包括初值选取、拟配优化和拟配结果验证是可行的。此外,还探讨了运用MatLab中的遗传算法和直接搜索工具箱进行等效系统拟配的方法。

Problems and their corresponding solutions are stated here appearing when qualified parameters of equal systems for aircrafts were pursued in MatLab using damped least square optimization principle. On the basis of the acquired method, the pitch axis short-term flying quality of a small-sized airplane is judged according to the equal system principle. The result suggests that the equal system matching procedures realized in MatLab, including obtaining initial values of the matching parameters, matching optimization and matching result verification, are feasible. In addition, the equal system matching method using genetic algorithm and direct search toolbox in MatLab is also discussed.