主动侧杆引导下的Ⅱ型驾驶员诱发振荡抑制

Modern fly-by-wire airframes are often designed to have relaxed static stability and side-stick control, making Pilot-Induced Oscillation (PIO) caused by actuator rate saturation as an important factor affecting flight qualities. In this paper, an active side-stick is designed as a means to alleviate pilot-induced oscillations due to actuator rate saturation. The stiffness of the active side-stick is changed with the actuator rate saturation, so as to mitigate the rate saturation. Based on the pilot-aircraft closed-loop system model with active side-stick, the simulation analysis and evaluation results show that the active side-stick to change the stiffness of the feel system can reduce the degree of saturation, improve flying qualities, and prevent category II PIO due to actuator rate saturation effectively.