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풍동실험을 통한 능동위상배열레이더에서 다층레이돔에 작용하는 공기력과 풍압의 실험적 연구
임성환,강광희,최지호,이승호,권순덕,Yim, Sung-Hwan,Kang, Kwang-Hee,Choi, Ji-Ho,Lee, Seung-Ho,Kwon, Soon-Duck 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.1
In this paper, we investigated the sensitivity of aerostatic force coefficients of multi-layer radom in the various wind speeds. The test was conducted in KOCED Wind Tunnel Center in Chonbuk National University, and wind speeds were in the range from 5 m/s to 26 m/s in order to determine the Reynolds number independence. The test results of present multi-layer radom were not affected by the Reynolds number, The maximum positive pressure coefficient was found to be 1.08 at the center of the front of the plane in angle of attack of 0 degree, the maximum negative pressure coefficient was -2.03 at the upper right corner in angle of attack of 120 degree, while maximum drag coefficient was 1.11 in angle of attack of 180 degree.
이원혁(Won-Hyuk Lee),임성환(sung-Hwan Yim),강광희(Kwang-Hwe Kang),권호상(Ho-Sang Kwon) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
The Radar is to find the target with radiating signal and taking reflected signal. Commonly the automotive radar use higher frequency range than another radar. The conventional automotive radar detects the nearby obstacle. Currently being developed automotive radar has bigger size and high power than the existing automotive radar because of detection angle and angular resolution of high performance. Automotive radar needs size reduction to be mounted a car and thermal stability for the stable operation of the electronic component. Find the suitable structure for size reduction and thermal stability through changing structure inner radar and using numerical analysis.