飞机拦阻系统非线性控制仿真分析

Simulation Analysis for Nonlinear Control of Aircraft Arresting System

针对飞机拦阻系统采用非线性控制进行了机构实现分析,利用状态反馈线性化及线性系统二次性能指标最优控制设计方法设计了非线性控制规律。建立了跟踪控制飞机位移及速度的非线性控制仿真模型,针对系统参数变化及飞机撞网速度测量值有偏差状况,进行了鲁棒性仿真分析,仿真结果表明:采用非线性控制,系统动态响应快,跟踪特性好,鲁棒性强,拦阻指标容易满足。

The feasibility that aircraft arresting system adopts nonlinear control is analyzed. Making use of state-feedback linearization and optimal control method of quadratic performance index of linear system, the nonlinear control law is designed. The nonlinear control simulation model of follow-up controlling airplane displacement and speed is established. The robustness of system is analyzed by simulation calculation when parameters change and measured value of engaging speed has deviation. Simulation results show that with nonlinear control, the dynamic response of system is fast, tracking characteristic is well, robustness is strong and arresting indexes are easy to satisfy.