Modeling and Simulation of Conversion Booster Cylinder Control System

This paper is based on the accelerated fatigue test of aviation hydraulic actuators. For the case where aviation hydraulic actuators transmission medium is different from the testing rig transmission medium, a new type of conversion booster cylinder is designed. This conversion booster cylinder set pressurization, medium conversion, pumping aviation oil as one, and laid the foundation for the pressure pulse fatigue test of aviation hydraulic actuator cylinders. Combined with the principle of valve-controlled asymmetric cylinder, a mathematical model of the control system of the pressurized cylinder was established using the method of parameter weighted averaging to unify the models in both directions. Simulink software is used to simulate the system, and the required time domain and frequency domain performance indexes are obtained. The working condition of confining pressure is simulated and the effectiveness of the design of the conversion booster cylinder is proved.