Research on Load Simulator Control Methods for Aircraft Actuation System

The load simulator simulates the aerodynamic loads on actuators in flight in a laboratory. It is used to evaluate whether the performance of actuation system meets the aircraft requirements. The maneuverability and control precision of aircraft are attracting more and more attention with the development of aviation industry. Because of being a force closed-loop system, the load simulator control system is seriously influenced by the redundant force. Taking aim at this problem, this paper establishes a mathematical model of the control system and proposes using fuzzy adaptive PID control strategy to eliminate redundant force. Through the computer simulation analysis, it was demonstrated that this method is feasible in theory. The experimental results also demonstrated that the fuzzy adaptive PID control strategy can eliminate redundant force efficiently.