Fault Analysis and Diagnosis of High Temperature Reliability Test Bed for Solenoid Directional Valve Based on AMESim
To analyze the failure of solenoid valves in airliner system,parameters of a simulation model were set to simulate par-tial failure conditions.The simulation model about the high temperature reliability test bed was built by using simulation software AMESim.These parameters indicate element failure such as electromagnet burn out,spring break,push rod wear,internal leak-age,hysteresis,etc.The simulation about change of leakage at high temperature and influence of push rod wear on flow rate was also carried out.The simulation results show that:With temperature increasing,the push rod wear which causes flow rate change increases gradually.In addition,oil leakage is greatly affected by temperature.To avoid large leakage,it is necessary to pay atten-tion to machining accuracy and assembly accuracy of the valve.The simulation results provide a reference for debugging of the test bed and fault diagnosis during actual use.
NETL
NSTL
万方数据
维普
