Study On Synchronization Feature For5-axis Forging Hydraulic Machine Based On Collaborative Simulation

2000KN5-axis forging hydraulic press is developed in the China’s strategiccontext of developing heavy forging equipment design and manufacturingcapabilities,which aims to research the the common problem study of "multi-axiscoupled multi-axis synchronization control forging hydraulic press," in order to providea theoretical basis for the design of the same type of heavy forging equipment.This paper mainly researches the electro-hydraulic synchronization characteristicsof2000KN five-axis forging hydraulic press by the way of co-simulation. Based onADAMS and AMESim，simulation models of four-axis and five-axis forging hydrauliccontrol system were established and verified.Then make the beam as the study center,the state space equation and the transfer function were established and analyzed,with theinput of eccentric load torque、Hydraulic cylinder corrective force，and the output ofbeam angle,and then the inequality of allowed eccentric moment was established underdifferent cylinder output combinations，which provides a theoretical reference for thepress pressing process.Then,the co-simulation model of4-cyclinder and5-cyclinderwere established through the software of ADAMS and AMESim，by the use ofcross-coupled synchronous control strategy, synchronization features position controland speed synchronous control synchronous co-simulation are established. On this basis,for different load conditions,the synchronization features of the four-axis andfive-cylinder control system are studied through the method of co-simulation. As aresult, the system would lead to the synchronization error of4.5mm without correctivestrategies,when the synchronization error can be reduced to0.6mm. Furthermore,with the PD controller added to feedforward path，the synchronization error wasreduced to0.3mm.And the simulation result was verified by relative experimental study.Then, the electro-hydraulic simulation platform was established through the software ofADAMS、 AMESim、 MATLAB/Simulink,and the control strategy of fuzzyPIDcombined with the cross-coupling synchronous control was developed to improve thedynamic performance of the press,which can reduce the dynamic synchronization errorto0.22mm.Finally,the factors leading to unsynchronized are researched, which canprovide guidance for the control system for better maintenance of equipment.