Journal of the Computational Structural Engineering Institute of Korea (한국전산구조공학회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Influence of Design Variables on Flow Characteristics of Poppet Valve using Analysis of Means

평균분석을 이용한 설계변수가 포핏 밸브의 유동특성에 미치는 영향

  • Jeong, Ja-Young (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Choi, Eun-Ho (Pusan Educational Center for Computer Aided Machine Design, Pusan Nat'l Univ.) ;
  • Kang, Young-Jin (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Noh, Yoojeong (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Lim, O-Kaung (School of Mechanical Engineering, Pusan Nat'l Univ.)
  • 정자영 (부산대학교 기계공학부) ;
  • 최은호 (부산대학교 기계설계전산화인력양성센터) ;
  • 강영진 (부산대학교 기계공학부) ;
  • 노유정 (부산대학교 기계공학부) ;
  • 임오강 (부산대학교 기계공학부)
  • Received : 2017.03.14
  • Accepted : 2017.05.08
  • Published : 2017.06.30
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Abstract

According to the structure, solenoid valve can be categorized as spool valve or poppet valve. While various research on spool valve which has simple structure and fine susceptibility to contamination has been conducted, poppet valve which has less susceptibility to contamination and advantage in a long time operation still need much research because of its complicated structure. In order to design the poppet valve, various parameters such as the diameter of the poppet, the angle of the poppet, the diameter of the disk, the spring stiffness, the spring preload and flow path structure should be considered. Conventional studies on poppet valve usually take only one design parameters and did not much focused on the effect of the parameters on flow characteristics. In this paper, the change of the flow characteristics according to the design parameters of the poppet valve for 3/2Way solenoid valve is analyzed. The previous studies and the results of initial model analysis was referred for the selection of the design parameters. The effects of design parameters on maximum pressure, minimum pressure, and pressure drop was examined using analysis of means(ANOM).

솔레노이드 밸브는 구조에 따라 스풀 밸브와 포핏 밸브로 구분된다. 구조가 단순하고 오염에 민감한 스풀 밸브에 대하여 연구가 많이 진행되고 있는 반면 오염에 덜 민감하고 장시간 작동에 용이한 포핏 밸브는 구조가 복잡하여 여전히 많은 연구가 필요하다. 포핏 밸브를 설계하기 위해서 고려해야 하는 사항으로 포핏의 직경, 포핏의 각도, 디스크의 지름, 스프링 강성, 스프링 예하중, 유로 구조 등 다양한 설계변수가 있다. 기존 연구에서는 설계변수를 한가지로 선정하여 연구가 진행되었고, 설계변수가 포핏 밸브의 유동특성에 미치는 영향에 대한 연구가 부족하다. 본 논문에서는 3/2Way 솔레노이드 밸브용 포핏 밸브의 설계변수 변화에 따른 유동특성의 변화를 분석하였다. 포핏 밸브의 설계변수 선정은 선행연구된 사례와 초기모델해석결과를 참고하여 진행하였다. 그리고 설계변수에 따른 최대압력, 최소압력, 압력강하의 영향을 평균분석(ANOM)을 사용하여 살펴보았다. 향후 3/2Way 솔레노이드 밸브용 포핏 밸브를 설계할 때 주효과를 파악하여 설계변수 선정에 사용하면 효율적인 설계변수 선정이 가능할 것으로 예상된다.

Keywords

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