Forging Precision And Rapidity Parameter Matching Technology Of Hydraulic Press Based On Mechanical- Electrical-Hydraulic Co-Simulation And Its Application

Forging precision and rapidity of hydraulic press is usually a pair of conflicting performance, improves one will reduce another, and there are many influence parameters, the combination of them is complicated, it is difficult to match the two performances through practical experiment. This article discusses its parameter matching technology of forging precision and rapidity, obtains the combination of influence parameters which coordinately matched them, provides theoretical reference for the practical application.Chapter 1 summarizes the research status of parameter matching technology which is based on mechanical-electrical-hydraulic co-simulation, gives the main content and structure of the paper.Chapter 2 analyzes the dynamic characteristic of each subsystem and the coupling relationship between them based on mechanical-electrical-hydraulic multidisciplinary coupled modeling, extracts the key parameters, sets forging precision and rapidity as matching goal, constructs the comprehensive evaluation function of the two performances based on the linear weighted method, combines with the variable constraints, constructs the parameter matching model.Chapter 3 analyzes the process of mechanical-electrical-hydraulic co-simulation which is based on process coupling, discusses the time wasting caused by its parameter dependence, propose a pre-compute accelerate strategy, executes the accelerate discrimination according to the slope of the curve of output variables. Combines the testing of the accuracy of predicted value, the accelerate process of co-simulation is completed under the assurance of the accuracy.Chapter 4 uses the optimal Latin Hypercube to carry out sampling of parameters, and achieves the objects through co-simulation, the elliptical basis functions is established then. The seeker optimization algorithm is adopted to obtain the optimal solution of matching goals, the comprehensive evaluation function of forging precision and rapidity is then set, and the final matching result is achieved. Compared with the original result, the effectiveness of parameter matching technology is verified.Chapter 5 constructs the simulation model of mechanical-electrical-hydraulic subsystem of hydraulic press and performs the co-simulation process. Establishes the agent model of forging precision and rapidity, completes the parameter matching solving process. Finally, the matching result is verified by simulation tests.Chapter 6 summarizes the main works and the innovations of this article, and points out the areas which need to be improved in the future research.