Journal of Energy Engineering (에너지공학)

The Korean Society for Energy (한국에너지학회)
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Flow Analysis for Optimal Design of Small Gear Pump

소형 기어펌프 최적화 설계를 위한 유동해석

  • Lee, Suk-Young (Inha Technical College Department of Mechanical Engineering, Seed Company) ;
  • Kim, Seung-Chul (Inha Technical College Department of Mechanical Engineering, Seed Company)
  • 이석영 (인하공업전문대학 기계과, 씨드) ;
  • 김승철 (인하공업전문대학 기계과, 씨드)
  • Received : 2015.02.21
  • Accepted : 2015.03.16
  • Published : 2015.03.31
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Abstract

Gear pump has a simple structure high reliability, easy operation and maintenance, widely used as a source of hydraulic system of hydraulic. In general, the gear pump was designed using variety of variables, the variables through the analysis of the mass flow rate and efficiency. In this paper, three-dimensional flow of the gear pump, in order to produce the optimal design of product, analysis was performed by using commercial software ANSYS v15.0 CFX. And then, combination of design parameters selected by ANSYS was carried out to confirm the simulation result. The efficiency and mass flow rate of the gear pump were studied by varying its rotational speed and the clearance between the gear tip and the housing. In the simulation results, as the rotational speed were increased, the average mass flow rate and efficiency increased. Furthermore, as the clearance between the gear tip and the housing was increased, the average mass flow rate and efficiency decreased.

기어펌프는 단순한 구조를 가지면서도 신뢰성이 높고 작동과 유지가 쉽기 때문에 수력학 장치에 널리 사용된다. 일반적으로 기어펌프는 질량유량과 효율을 고려한 다양한 변수에 의해 설계된다. 본 연구에서는 기어펌프의 최적화 설계를 위해 ANSYS v15.0 CFX 상용프로그램을 사용한 3차원 유동해석을 실시하고 해석결과로부터 설계변수를 선정하도록 하였다. 즉, 기어펌프의 다양한 회전 속도 및 기어 끝단과 하우징 사이의 간극에 대한 질량유량 및 효율을 검토하였으며, 해석 결과로서, 회전 속도가 증가할수록 평균 질량유량 및 효율은 증가하였고, 기어펌프와 하우징의 간격이 증가할수록 평균 질량유량 및 효율은 감소하였다.

Keywords

References

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