摘要
本文提出直升机抑制阵风扰动的最优控制律设计方法。优化性能指标要求在阵风扰动下驾驶员处法向过载、飞机姿态变化、以及控制信号能量损耗最小。最终所综合的系统工程实现简便,只需在直升机姿态控制系统基础上增加垂直升降速率反馈通道即可。为跟踪90年代采用高级语言开发飞控应用软件的总趋势,本文使用C语言对优化控制律进行编程。数模混合仿真表明,控制律优化及数字化实现的效果是令人满意的。
A design method of the optimal control law to suppress gust disturbance for helicopters is presented in this paper. The optimization requires the minimization of the normal acceleration overload at the position of pilot, the attitude variation and the control energy consumption under gust disturbance. Based on the original attitude control system, the result system can be easily realized by adding the vertical speed feedback. In order to follow-up the general trend of developing the real-time operational flight control software by means of high order languages during the 1990's, the optimized control law is written in C language. It is proved by the hybrid simulation that the performance of gust response alleviation and efficiency of digitalization are all satisfactory.
关键词
直升机
阵风响应
控制律
设计
helicopter, gust response, optimal control, high order language, digitalization
