飞机穿越风切变时的地速/空速控制

为解决飞机穿越风切变过程中控制系统解耦和飞行轨迹的实时/在线控制问题,对飞机纵向三自由度非线性模型,运用非线性动态逆方法,在风轴系中设计了飞行轨迹的高度变化率/空速控制模式,在地轴系中设计了高度变化率/地速控制模式.对2种控制模式进行比较并将其结合起来,得到更加完善的地速/空速控制律.仿真计算表明动态逆方法在飞机穿越风切变的轨迹控制过程中实用有效.

Ground-Speed/Air-Speed Control of Airplane During Penetration of Windshear

To design the control logic during the penetration of windshear, Non linear Inverse Dynamics (NID for short) method has been employed to achieve the decoupling of the non linear flight control system and the implementation of the real time/on line control for the flight trajetory. Two independent control laws were developed: climb rate/airspeed control mode in the wind coordinate system and climb rate/ground speed control mode in the ground coordinate system. On the basis of analysis of the two modes, they were integrated to form a new and more feasible penetration trajectory control law: ground speed/airspeed control law. The simulative calculation results indicated that the NID method works effectively in the trajectory control of airplane during the penetration of windshear.