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http://dx.doi.org/10.3795/KSME-A.2015.39.11.1113

FRF based Position Controller Design through System Identification for A Hydraulic Cylinder  

Seo, Hyoung Kyu (Dept. of Mechanical Design and Robot Engineering, Seoul Nat’l Univ. of Science and Technology)
Kim, Dong Hwan (Dept. of Mechanical Design and Robot Engineering, Seoul Nat’l Univ. of Science and Technology)
Park, Jong Won (Reliability Assessment Center, Korea Institute of Machinery and Materials)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.39, no.11, 2015 , pp. 1113-1121 More about this Journal
Abstract
In this study, we have focused on the design of a controller and an operating program for the operation of the hydraulic actuators used in a shaker. To control the motion of the shaker accurately, the position of each hydraulic cylinder should be controlled precisely even under an uncertain environment. For this purpose, we have suggested a control algorithm using an FRF (frequency response function) based control which senses the behavior of the actuator in advance, calculates a transfer function through the system identification method, and provides the final control input. The experimental results on the performance of this system were compared with that of a simple PID control algorithm.
Keywords
System Identification; FRF; DFT; Hydraulic Cylinder;
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