工程臂架液壓驅(qū)動(dòng)同步系統(tǒng)設(shè)計(jì)與控制策略
[Abstract]:Hydraulic drive synchronization system is an important branch of electrohydraulic integration. With the development of hydraulic technology, modern machining, aerospace and aeronautical technology and the improvement of equipment technology, the accuracy of synchronization is becoming more and more demanding, and synchronization control is paid more and more attention. At the same time, due to the rapid development of microcomputer and automation theory, the digital valve with direct interface with computer, strong anti-pollution ability and cheap price appeared. So how to use digital valves to achieve hydraulic drive synchronization has become a hot research topic. On the basis of consulting a large number of related literatures at home and abroad and taking the engineering boom as the research object, this paper designs a double cylinder hydraulic drive synchronous circuit with high flow rate, high precision and high response, using the high speed switch valve as the pilot valve to control the cone valve. According to the design scheme and working conditions, the components selection, analysis, calculation and electromechanical and hydraulic integration module design of the hydraulic drive synchronous system are carried out, and the engineering and 3D drawings are drawn. According to the working principle of synchronous loop, the corresponding mathematical model is established by using the theory of spatial state variable. Based on the mathematical model, the simulation model is built with MATLAB/simulink toolbox and the simulation research is carried out to verify the feasibility of the scheme. Finally, the PID controller, fuzzy controller and fuzzy PID controller are used to control the synchronization system by using the MATLAB/simulink toolbox. After analyzing the precision of synchronization, the most suitable control strategy for the synchronization system is selected. The above research has certain reference value and reference function for the research and production of synchronous control by using digital valve.
【學(xué)位授予單位】:湖南師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2011
【分類號(hào)】:TH137
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