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Research of Electro-hydraulic Control System of Vibration Table

Author: HuangJinYong
Tutor: ZhouYi
School: Chongqing University
Course: Mechanical and Electronic Engineering
Keywords: Electro-hydraulic vibration table data acquisition card servo controller Visual C++6.0 MATLAB
CLC: TP273
Type: Master's thesis
Year: 2011
Downloads: 21
Quote: 0
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Abstract


Electro-hydraulic vibration platform has a wide range of applications in the actual industrial applications for its excellent cost-effective, which has always been a focus of attention in application fields. And Servo controller is particularly significant as its control center. Most of electro-hydraulic vibration table is basically the instrument control operations style, which is greatly restricted in system maintenance, expansion and upgrade, etc. The computer control system used in this paper meets the development trend of control operation.In this paper, we build electro-hydraulic vibration’s control system and study it based on its existing hydraulic drive system. Firstly, establishing the linear mathematical model of electro-hydraulic vibration table, analysing electro-hydraulic servo control system’s dynamic characteristics, and then obtain the characteristics of its nonlinear nature. Secondly, proposing the design features of its control system and the design specifications of servo controller, combined with the existing electro-hydraulic vibration table. Then study the control strategy of the servo controller, we design two controllers, which is fuzzy controller and PID controller based on Ziegler-Nichols parameters-adjust empiric formula.Thirdly, we simulate the adjust stability of the controlling system and its tracking performance by MATLAB, which compares the simulation results of the behavior of PID controller and fuzzy controller. Finally, we establish the hardware of servo controller, combined with computer, data acquisition card, servo amplifier and so on; and development the control software by Visual C++6.0, then debug the electro-hydraulic servo control system online; at last we do some experiment to test the system and get the dynamic characteristics parameters of the servo control system and analysis the experimental results.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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