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针对客机在侧向紊流干扰下产生附加过载、导致乘坐品质下降的问题,提出一种新的乘坐品质控制律设计方案。首先,根据乘坐品质的设计要求,建立大气扰动和飞机的综合模型;然后,利用在垂直安定面上测得的压差信号,在飞机发生不期望的偏航运动之前,驱动方向舵实现乘坐品质改善;同时,结合偏航阻尼模块产生的偏航角速度信号,确保飞机的稳定控制;最后,采用粒子群算法在不同强度的紊流干扰和有无驾驶员操纵的情况下进行控制参数设计。仿真结果表明,所提的控制系统能有效改善飞机的乘坐舒适性。
Aiming at the problem of additional overload caused by the disturbance of lateral turbulence and the decrease of riding quality, a new design scheme of riding quality control law is proposed. First of all, based on the design requirements of ride quality, a comprehensive model of air disturbance and aircraft is established. Then, the pressure difference signal measured on the vertical stabilizer is used to drive the rudder to improve the riding quality before the unwanted yaw movement of the aircraft At the same time, the yaw rate signal generated by the yaw damping module is combined to ensure the stable control of the aircraft. Finally, the particle swarm optimization algorithm is used to design the control parameters with different intensity of turbulence disturbance and driver’s manipulation. The simulation results show that the proposed control system can effectively improve the ride comfort of the aircraft.