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Design of loading system for hydraulic cylinder test-bedbased on fuzzy PID control strategy(PDF)


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Design of loading system for hydraulic cylinder test-bedbased on fuzzy PID control strategy
Zhang Zhaodong1Xu Xiaoliang2Yang Yang2Zhang Honghu23Lu Baochun2
1.School of Mechanical Engineering,Yangzhou Vocational University,Yangzhou 225009,China; 2.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China; 3.Yangzhou Jiangdu Yongjian Co.,Ltd.,Yangzhou 225200,China
hydraulic cylinder test-bed control accuracy fuzzy proportional integral differential control strategy modeling and simulation
TH137; TP273.4
The loading system of a hydraulic cylinder comprehensive performance test-bed is taken as the research object in this paper and a loading control method based on fuzzy proportional integral differential(PID)control strategy is proposed to solve the problem that the loading system is unstable and inaccurate due to the external interference. Firstly,the joint model of displacement system and loading system is obtained according to the structural characteristics of the test-bed and the theory of passive control. The influencing factors of the control precision are obtained by using MATLAB to simulate its output loading force under the influence of the displacement system. By adding the fuzzy PID control strategy to the original system,it can adjust its PID control parameters dynamically,effectively improve the response speed of loading force,and shorten the response time.


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Last Update: 2019-02-28