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김철재(C. J. Kim),강용주(Y. J. Kang),최순우(S. U. Choi),허준영(J. Y. Huh) 유공압건설기계학회 2019 유공압건설기계학회 학술대회논문집 Vol.2019 No.6
To be able to eliminate interferences in a system, it is necessary to isolate the fault and to establish the cause. Since a fault is often the result of several causes, it is essential to be aware of the effects of all potential individual faults. In this way, the individual causes can be investigated specifically and eliminated, whereby it is best to adopt a systematic procedure. Festo educational hydraulic servo system (TP511 Didactic) is globally used. In this study, For the case where this device receives disturbance to minimize the effects of disturbance in position control a state observer is introduced and tested by simulation to verify the usefulness.
보이스코일형 선형 직류 모터를 사용한 서보밸브의 특성해석
박성수(S. S. Park),허준영(J. U. Huh),박창순(C. S. Park),조재문(J. M. Mun),윤주한(J. H. Yoon) 유공압건설기계학회 2011 유공압건설기계학회 학술대회논문집 Vol.2011 No.6
In order to make a hydraulic control system having high accurate and fast response linear DC servo motor with voicec coil is used. The hydraulic control system using the servo motor moves a spool directly and use electrical feedback signal so the system has a good performance. The study on the voice coil type linear DC motor used to obtain design parameters for characteristic analysis. The static characteristic of voice coil type servo valve are examined. The simulation results are compared with data of manufacture"s catalog to show the validity of the modelling.