Experimental study of electro-hydraulic actuator with payload for precision motion control

Offline iterative control technique in a hydraulic testing sector is primarily used to improve the tracking control performance despite nonlinearity caused by a testing subject or hydraulic actuators. However, it is hard to find previous researches analyzing about the effect of various load types to...

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Published inMicrosystem technologies : sensors, actuators, systems integration Vol. 24; no. 3; pp. 1347 - 1357
Main Authors Baek, Seung Guk, Ji, Sanghoon, Koo, Ja Choon
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2018
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ISSN0946-7076
1432-1858
DOI10.1007/s00542-016-3050-9

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Abstract Offline iterative control technique in a hydraulic testing sector is primarily used to improve the tracking control performance despite nonlinearity caused by a testing subject or hydraulic actuators. However, it is hard to find previous researches analyzing about the effect of various load types to the offline iterative control technique. The present paper demonstrated the effect of three load types to the offline iterative control technique by using experimental data. For this, the three load types in test conditions were defined. Then transfer functions of an actuating system and tracking control performance of the offline iterative control technique were experimentally examined. The experimental results showed that load types affected transfer functions of an actuating system, and frequency response function’s distortion, caused by nonlinearity, degraded the tracking performance of the offline iterative control technique.
AbstractList Offline iterative control technique in a hydraulic testing sector is primarily used to improve the tracking control performance despite nonlinearity caused by a testing subject or hydraulic actuators. However, it is hard to find previous researches analyzing about the effect of various load types to the offline iterative control technique. The present paper demonstrated the effect of three load types to the offline iterative control technique by using experimental data. For this, the three load types in test conditions were defined. Then transfer functions of an actuating system and tracking control performance of the offline iterative control technique were experimentally examined. The experimental results showed that load types affected transfer functions of an actuating system, and frequency response function’s distortion, caused by nonlinearity, degraded the tracking performance of the offline iterative control technique.
Author Baek, Seung Guk
Ji, Sanghoon
Koo, Ja Choon
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  organization: Korea Institute of Industrial Technology, Robot R&D Group
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  fullname: Koo, Ja Choon
  email: jckoo@skku.edu
  organization: Department of Mechanical Engineering, Sungkyunkwan University
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Snippet Offline iterative control technique in a hydraulic testing sector is primarily used to improve the tracking control performance despite nonlinearity caused by...
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SubjectTerms Electronics and Microelectronics
Engineering
Instrumentation
Mechanical Engineering
Nanotechnology
Technical Paper
Title Experimental study of electro-hydraulic actuator with payload for precision motion control
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