• Title/Summary/Keyword: 컨트롤 밸브

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Development and Verification of Analytical Model of a Main Control Valve (메인 컨트롤밸브의 해석모델 개발 및 검증)

  • Kim, D.M.;Lee, J.M.;Jung, W.J.;Jang, J.S.
    • Journal of Drive and Control
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    • v.12 no.2
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    • pp.39-48
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    • 2015

  • In order to control the actuators of hydraulic machinery such as excavators, various control valves are typically assembled in a single block. Such a control block is called a main control valve(MCV). In this paper, we analyzed the working principle and the particular purpose of the design of all valves included in the MCV system. To Examine the reliability of the analysis model, the pressure drop of the MCV at each port was measured. The authors developed an analytical model of the control valve(main spool, load poppet, pressure relief, make up, and regeneration). The authors considered the notch shape of the spool while developing the analytical models of the main spool valve. Most importantly, at the stage before the analysis model was applied in the design tuning, the reliability was ensured by comparing the analysis results with the test results. This paper showed a process of developing an analysis model that can be utilized in the design and tuning stages.

  • https://doi.org/10.7839/ksfc.2015.12.2.039 인용 PDF KSCI

An Experimental Study on the Response Characteristics of Current-Pneumatic Control Valve (전류-공기압 컨트롤 밸브의 응답특성에 대한 실험적 고찰)

  • Bae, Bong-Guk;Seok, Chang-Seong
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.25 no.2
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    • pp.206-213
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    • 2001

  • The positioner is an essential component of the control valve which is used to control quantity of the liquid in the pipe of chemical plants. In this paper, the experimental methodology for current pneumatic positioner was developed for the investigation of the static and dynamic characteristics of the positioner. The methodology was applied to evaluate response characteristics of two different positioners, which are current model in market and newly designed model. The experimental results of these two models were compared and analyzed.

  • https://doi.org/10.22634/KSME-A.2001.25.2.206 인용 PDF

A Study on Modeling and Simulation of Hydraulic System for a Wheel Loader using AMESim (AMESim을 이용한 휠로더 유압시스템의 모델링 및 시뮬레이션에 관한 연구)

  • Chung, Y.K.;Park, S.H.;Jeong, C.S.;Jeong, Y.M.;Yang, S.Y.
    • Transactions of The Korea Fluid Power Systems Society
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    • v.7 no.4
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    • pp.1-8
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    • 2010

  • 본 논문은 유압해석 상용툴인 AMESim을 이용하여 로드센싱형 휠로더 유압 시스템을 모델링 하였다. 휠로더 유압장치의 주요 구성요소인 펌프, 메인 컨트롤밸브, 압력 보상기, 리모트 컨트롤밸브 및 작업 장치를 모델링 하였으며 실제 차량의 제원을 적용하여 시뮬레이션을 수행하였다. 시뮬레이션 결과와 실차 데이터를 비교 검토하여 시뮬레이션 결과와 실차 데이터가 유사함을 알 수 있었다.

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