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A Study on Alternative Fan Selection and Verification in Military Electronic Equipment

방산용 전자장비의 팬 선정 및 검증에 관한 연구

  • Received : 2017.01.20
  • Accepted : 2017.09.02
  • Published : 2017.11.01

Abstract

Sales of commercial-type cooling fans intended for application in military electronics are often discontinued during equipment production. This results in requirements for alternative fan selection as well as equipment performance and reliability tests, such as high-temperature operation testing. This study deals with alternative fan selection and verification methods that can be used during the production process. First, an alternative fan was selected by calculating the flow and pressure required to effectively cool the equipment, then the feasibility of the selected fan was verified using a reliable CFD heat dissipation analysis model. Following this, a high-temperature operation test was performed using the alternative fan in the equipment. Results demonstrated that the equipment satisfied its required function in a high-temperature environment, and the main parts as well as internal air temperature were found to be thermally stable.

상용(Commercial type) 냉각 팬이 적용된 방산용 전자장비는 생산 기간 중 팬 단종이 빈번하게 발생된다. 팬 단종 문제의 해결을 위해서는 대체 팬 선정이 필요하며, 고온 동작 시험 등의 장비 성능 및 신뢰성 검증이 요구된다. 따라서 본 논문에서는 생산 과정에서 활용 가능한 효과적인 대체 팬 선정 및 검증 방안에 대해 연구하였다. 먼저, 장비 냉각에 필요한 유량 및 압력을 계산하여 대체 팬을 선정하였고, 신뢰성을 확보한 CFD 방열 해석 모델을 활용해 팬 선정의 타당성을 검증하였다. 이후 대체 팬을 장비에 적용하여 고온 운용 시험을 수행하였다. 그 결과 장비는 고온 환경에서 정상적인 기능을 발휘하였으며, 주요 부품 및 내부 공기 온도는 열적으로 안정된 상태임을 확인하였다.

Keywords

References

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