The Mechanical-Hydraulic Co-Simulation Of The Hydraulic Support And The Analysis Of Hydraulic Control System

With the developing of mining technology, the demanding for capability of key equipment in the fully mechanized caving mining face is increasing. To research, design and develop hydraulic support with high performance applications, more time and cost would be needed to produce and test prototype, and can not change parameters of hydraulic support freely, if only use traditional design ways. The virtual prototyping technology just beginning to emerge in recent years provides a new way for the design and study of hydraulic support. Analyze and assess the product's performance before the product is manufactured using virtual prototyping technology model which can optimize the design project to achieve the optimal target.This paper has taken a certain type of hydraulic support as the study object. Based on the virtual prototyping technology, getting help from the 3D design software PRO/E and mechanical systems dynamic analysis software ADAMS, the physical model of hydraulic support is established and executes kinematical simulation. The movement characteristics of the prop rising and falling mechanism, end beam swinging and inserting plate extension mechanism as well as the guard board swinging mechanism are the crucial points of the study. Through the system analysis software EASY5, the hydraulic system model is set up and the static and dynamic characteristics of some hydraulic loops are analyzed. In addition, the issue of interface produced by two types of software is studied and the mechanical-hydraulic integration virtual prototyping model is established which is the real model of the whole system. The co-simulation of mechanical system and hydraulic system is realized.By building the mechanical-hydraulic integration co-simulation model, the prop control hydraulic loop and guard board control hydraulic loop are simulated and studied. Analyze the interaction response characteristics between the hydraulic power loop and the mechanical system which has the true and accurate dynamic characteristics of the whole machine mastered by the designer. This way of co-simulation has provided a new method for performance testing and research of hydraulic support.In addition, the co-simulation technology studied in this paper can be applied in the design and development of other mechanical-electronic-hydraulic products, which has important significance to enhance our international competitiveness of the mechanical-electronic-hydraulic products.