论文部分内容阅读
“随机抽检,直接搜索”法(简称RCDS法)是一种类似于非线性动态规划的直接法,可用于求解受到任意个不等式约束的线性或非线性系统的最优解问题.本文用变更概率分布函数、逐步加大搜索步长和剔除重叠搜索区间等措施进行了加快收敛速度的改进,使该方法的效率显著提高.文中应用改进了的RCDS法对一架大型旅客机的自动着陆系统进行了优化设计;对一架歼击机的本体加自动器的高阶系统进行了等效系统拟配,效果良好.RCDS法可广泛应用於飞行力学的其他优化问题或系统/参数辨识问题中。
The “random sampling and direct search” (RCDS) method is a direct method similar to nonlinear dynamic programming, which can be used to solve the optimal solution of linear or nonlinear systems subject to arbitrary inequality constraints.In this paper, Distribution function, step-by-step increase of search step size and elimination of overlapping search intervals are carried out to speed up the improvement of convergence speed and improve the efficiency of this method.An improved RCDS method is applied to the automatic landing system of a large passenger aircraft The optimization design is carried out.An equivalent system is fitted to the high-end system of a fighter body and robot.RCDS method can be widely used in other optimization problems of flight mechanics or system / parameter identification.