한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제24권5호
  • /
  • Pages.34-42
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  • 2020
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  • 1226-6027(pISSN)
  • /
  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
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터보팬을 모사한 소형 엔진에서의 바이패스 비에 따른 적외선 신호 측정

Infrared Signal Measurement with Bypass Ratio in a Small Engine Simulating a Turbofan

  • Choi, Jaewon (Department of Aeronautical Mechanical Design Engineering, Koera National University of Transportation) ;
  • Jang, Hyeonsik (Aerospace Engineering Department, Jeonbuk National University) ;
  • Kim, Hyemin (Department of Aeronautical Mechanical Design Engineering, Koera National University of Transportation) ;
  • Choi, Seongman (Aerospace Engineering Department, Jeonbuk National University)
  • 투고 : 2020.05.08
  • 심사 : 2020.08.25
  • 발행 : 2020.10.31
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초록

현대 항공전에서 적외선 신호는 상대방 탐지에 있어 중요한 역할을 하며, 생존성 및 스텔스성 향상을 위해 저감되어야 한다. 특히 항공기 엔진 후류에서 발생하는 적외선 신호는 높은 강도를 가지며 파장이 짧아 대부분의 열 추적 미사일이 이러한 신호를 따라 탐지하게 된다. 이에 따라 본 연구에서는 엔진 후류에서 발생하는 Gas radiation 신호 측정 및 특성 분석을 수행하였다. 실제 항공기 터보팬 엔진을 모사하기 위해 마이크로 터보제트 엔진을 구성하였으며, 바이패스 비 조절을 통한 적외선 신호 저감 특성을 파악하였다. 이를 통해 각 파장 별 적외선 신호 특성을 분석하고 신호 저감 기술들에 대한 검증을 수행한다.

In modern air combat, infrared signals play an important role in the detection of opponents and must be reduced to improve survivability and stealth. In particular, IR signals generated in the wake of aircraft engines have high intensity and short wavelengths, so most heat-tracking missiles detect these signals. Accordingly, the measurement and characteristic analysis of Gas radiation signals from the engine's wake were carried out in this study. Micro turbojet engine has been configured to simulate a real aircraft turbofan engine, and the characteristics of IR signal reduction by adjusting the bypass ratio were identified. Through this, the IR signal characteristics for each wavelength are analyzed and verification of signal reduction technologies is performed.

키워드

과제정보

본 연구는 국방과학연구소가 지원하는 항공기생존성 향상을 위한 추진계통 IR 신호 감소 형상설계 파라메트릭 과제(UD 180038JD)로 수행되었습니다.

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