Research on Electro-hydraulic Static Loading System Based on Direct-acting Digital Valve

Static test of complex engineering components is an important means of researching static characteristics and the main method to identify product structure static strength.Electro-hydraulic static servo loading system is the key equipment of static testing.An electro-hydraulic servo loading system based on direct-action digital valve was designed.The combination of direct-acting digital servo valve and classical PID control improved the system accuracy and dynamic response speed,and better experimental effect was achieved.