Mechanism and Characteristic Analysis of Deflector Jet Pressure Servo Valve with Mechanical Hydraulic Feedback
Pressure servo valve is a significant control component of aircraft brake pressure servo system.In order to meet the requirements of high dynamics and high reliability of the pressure servo valve,a deflector jet pressure servo valve with the mechanical hydraulic feedback is designed in this paper.To investigate the mechanism and characteristics of the pressure servo valve,the mathematical model and Simulink simulation model were established.The simulation results show that the dead current of the pressure servo valve is 1 mA,the maximum output pressure is 10 MPa,the pressure gain is 1.15 MPa/mA,the amplitude bandwidth is 26 Hz,and the phase bandwidth is 36 Hz.The dynamic and static performance of the pressure servo valve is satisfactory,which meets the requirements of the system.Finally,the accuracy of the theory and simulation model is verified by experiments.The results show that the theoretical model can predict the static performance of the pressure servo valve well,and provide theoretical support and simulation reference for the structural design and optimization of the pressure servo valve.
NETL
NSTL
万方数据
维普
