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Research and Design on Electric-Hydraulic Servo-Control System of Tire Endurance Testing Machine

Author: WangWeiHong
Tutor: WangShouCheng
School: Qingdao University of Science and Technology
Course: Mechanical Manufacturing and Automation
Keywords: Tire endurance testing machine Hydraulic serve-control Fuzzy -PID adaptive control Emulation Visual Basic Software system
CLC: TP271.3
Type: Master's thesis
Year: 2008
Downloads: 54
Quote: 2
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Abstract


Tire is widely used in various fields, with the development of the tire industry, the high-performance testing tire endurance machine is necessarily. However, this technique has a late start in our country, we had to import the machines abroad over the years. For the past few years, though design and research on tire endurance testing machine had made a certain progress that still can not meet the needs of the market. The tire endurance testing machine designed in this thesis is used to measure the tire’s life expectancy under various parameters, which may provide accurate experimental data for tire development and new technologies.The main contents of this thesis is designed on electric-hydraulic servo-control system of tire endurance testing machine, which is a loading device used to simulate the load on tire, plays an important role in it. Designed on the system structure; Established the mathematical model of the components and the entire system, linearized the model and calculated the linear coefficient on operating point, then geted the transfer function. Designed a fuzzy PID adaptive controller, which has the advantages both the fuzzy control and the PID control. It based on expert system, can setting the PID parameters on-line, has a good dynamic and static properties, and good adaptability; Achieved the function of the controller by fuzzy logic in MATLAB toolbox, and established the system simulation model using SIMULINK toolbox, the simulation results indicate that the system has good dynamic and static properties, and fully verified the reliability of the system.Designed on the hardware system. Developed the real-time control system software by Visual Basic, the interface of the software is friendly and operation is convenient. Achieved the function of real-time data acquisition、real-time control of the decision-making and completed the communication between the computer and the control system successfully.In the research of this thesis, the application and practicability is critical, the design ideas and methods are universal, and it is helpful that the design of similar system would be assisted.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > General Automation System > Fluid Systems
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