Modeling and Simulation of Injection Hydraulic System of Semi-solid Magnesium Alloy Molding Machine
Aiming at the problems such as high modeling difficulty of injection hydraulic system of semi-solid magnesium alloy molding machine,low accuracy of simulation model due to difficulty in obtaining actual structural parameters of key components,and difficulty in analyzing dynamic characteristics of injection hydraulic system,simulation models of key components were established by measuring 3D models of key components of injection hydraulic system and using AMESim simulation platform.The whole circuit was built according to the principle diagram,and the no-load test of the molding machine was carried out to verify the correctness of the simulation model.Finally,the injection and braking characteristics of the cylinder during injection were analyzed based on the simulation model of the injection hydraulic system.The results show that the simulation model can accurately simulate the dynamic performance of the injection hydraulic system,and the maximum relative error is less than 5%.The simulation model can correctly simulate the dynamic characteristic changes of the injection hydraulic system,laying a foundation for the analysis of the dynamic performance of the injection hydraulic system.
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