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터보팬을 모사한 소형 엔진에서의 바이패스 비에 따른 적외선 신호 측정
최재원(Jaewon Choi),장현식(Hyeonsik Jang),김혜민(Hyemin Kim),최성만(Seongman Choi) 한국추진공학회 2020 한국추진공학회지 Vol.24 No.5
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.
소형 터보젯 엔진 후류의 측정 각도 별 적외선 신호 특성
최재원(Jae Won Choi),장현식(Hyeonsik Jang),김혜민(Hye Min Kim),최성만(Seongman Choi) 한국추진공학회 2021 한국추진공학회지 Vol.25 No.4
Infrared (IR) stealth technology to protect aircraft from heat-tracking missiles is a very important factor in the development of military aircraft. In this study, the intensities of signal generation were compared by observing the IR signals generated from the plumes of the engine and identifying them for each measurement angle. To simulate a jet engine applied to an actual aircraft, a small turbojet engine was constructed, the infrared signal characteristics for each wavelength were identified according to the measurement angle, and the total infrared radiance was derived by integrating the signal for each wavelength. Through this study, we intend to present basic data for improving the infrared stealth performance of aircraft.