AMESim Dynamic Simulation and Parameter Optimization for Hydraulic Governor
The governor plays a key role in the flight stability and engine safety of propeller aircraft.The design structure of hydrau-lic governor and its working principle were analyzed;AMESim models of governor,hydraulic system and actuator were established,and dynamic characteristics were simulated and analyzed;the single-factor influence analysis of governor dynamic characteristics was con-ducted,and the main design parameters included control valve mass,counterweight mass and spring stiffness,etc..Then the optimal de-sign parameters were obtained through multi-factor influence analysis.The optimized governor model was verified by dynamic simula-tion.The results show that after the optimization of governor parameters,the oscillations amplitude of speed regulation and the oscillations number are significantly reduced,increasing the stability of the governor system,and its performance is greatly improved,which can bet-ter meet the requirements of engine and propeller speed regulation.