Modeling And Simulation Of Hydraulic Support's Hydraulic System

With the continuous development of coal industry, high yield and high efficiency compound mining equipment progress quickly. As the main compound mining equipment, hydraulic support puts forward higher requirement for its performance. If we make various performance tests with the traditional design method, cycle is long, the cost is high, changing parameters or conditions is very difficult. Sometimes, it even can not be achieved. This article based on one type of hydraulic support's hydraulic system, studies some of the dynamic characteristics of hydraulic support, and has calculated the pressure loss of liquid.This thesis models the hydraulic system of hydraulic support, using the software of AMESim. AMESim is stark and graphical in modeling. According to the mathematical equations to create multiple areas of graphical component libraries, making modeling method more convenient. This thesis'auxiliary tool is Visual Basic, using it we make the man-machine interface of hydraulic support's hydraulic system, and write the interface program of Visual Basic and AMESim, in the last, realizes the joint simulation of Visual Basic and AMESim.Based on the hydraulic support's hydraulic system establishment of hydraulic model, we make the simulation, and study the dynamic characteristic of Emulsion pump, pillar control circuit and goes control circuits, which are the main loops. in addition, using the way of damping hole in instead of hydraulic support directional control valve in hydraulic system, the system model is simplified. And then analysis the Simulation, using the simulation results, we calculate the pressure loss of hydraulic support's hydraulic system.This article makes the aim of controlling hydraulic support's hydraulic system by the way of making machine interface control, and makes the operation more convenient. We analysis the simulation system through the way of changing parameters, get the main factors of influence hydraulic support's hydraulic system dynamic. It provides theory basis for new hydraulic support's research and design, improving hydraulic support's performance.