摘要
以微下击暴流为典型代表的低空风切变对飞机起飞着陆安全构成严重威胁。文中系统建立了典型商用飞机的动力学模型和微下击暴流风场模型。设计最优二次型调节器实现进场着陆的自动控制,并进行了仿真验证。在此基础上,进行飞机纵向改出风切变的控制策略及安全性研究。通过仿真结果与建模数据的对比表明,建立的动力学模型和控制律正确。通过不同改出控制策略的仿真,给出了飞机穿越风切变进场着陆的建议改出方法。
Low-altitude wind shear, especially the microburst, threatens aircrafts＇ flight safety seriously during take-off and landing. Typical flight dynamics model for commercial aircraft and microburst wind field model were built in this paper. The control law of auto-landing was designed based on optimal linear quadratic regulator which was validated by the simulation. Furthermore, the longitudinal escape control and safety analysis were studied. The comparison of simulation results and modeling data shows that the flight dynamics model and control law are correct. By the simulation for different escape schemes, the advice for escape scheme in microburst was presented.
出处
《信息技术》
2014年第10期38-43,47,共7页
Information Technology
基金
国家自然科学基金重点项目(61039002)
航空科学基金(20128052060)
中央高校基本科研业务费专项资金(NS2012060)
关键词
风切变
最优控制
改出策略
飞行仿真
wind shear
optimal control
escape schemes
flight simulation
