Dynamic Research of Hydraulic Excavator Through Multidisciplinary Co-Simulation
Based on Altair software Activate and Motion module,a multidisciplinary collaborative simulation model of excava-tor mechanism-structure-hydraulic-control was established by collecting parameters such as the working track of the hydraulic excavator.Taking the working track of the excavator as the control target,the stress conditions of the boom cylinder,bucket rod cylinder and bucket cylinder were compared and analyzed.The results show that:The stress trend of simulation and test is the same.The average deviation of acting force of boom cylinder is 5%,that of bucket rod cylinder is 2%,and that of bucket cylinder is 2%.The research shows that the excavator model based on multidisciplinary co-simulation can well simulate the stress condi-tion of the cylinder during excavator operation.The model can reduce the number of tests,reduce the cost of tests,and provide load data for the optimization design of the excavator structure,which has certain engineering significance and value.