Numerical model of loading system for real-time substructure testing

Abstract:

To reveal the actual working state of loading system in real-time substructure testing(RSTing),and based on the existing transfer function model of servo-hydraulic system developed by Jung,three modifications had been made,which included transfer function of actuator、servo-valve gain and pressure feedback gain.A new numerical model of servo-electric hydraulic system was set up and used to simulate the effects of the dynamics of the test system.The simulation results agree very well with those of simulink model,which verifies the correctness of the modifications to the existing transfer function model.