Due to rapid development of infrared guided weapon, survivability of armored vehicle is severely threatened. Hence, reduction of susceptibility by lowering infrared signature level is essential to enhance survivability of the vehicle. For this purpose, numerical analysis is conducted to analyze time and spatial characteristics of infrared signature of the vehicle when surface emissivity changes in this study. The analysis shows that the emissivity which produces minimum contrast radiant intensity is significantly altered by time and detecting position. Based on the result, it is concluded that the controlled structures which have different emissivity should be adopted at different region of the vehicle to effectively decrease infrared signature level.

• 김태일(연세대학교 기계공학과) | Taeil Kim (Department of Mechanical Engineering, Yonsei Univ., Seoul, 03722, Korea)
• 김태환(연세대학교 기계공학과) | Taehwan Kim (Department of Mechanical Engineering, Yonsei Univ., Seoul, 03722, Korea)
• 배지열(연세대학교 기계공학과) | Ji-Yeul Bae (Department of Mechanical Engineering, Yonsei Univ., Seoul, 03722, Korea)
• 정대윤(국방과학연구소 제3기술연구본부) | Daeyoon Jung (The 3rd Research and Development Institute, Agency for Defense Development. Daejeon, 34186, Korea)
• 조형희(연세대학교 기계공학과) | Hyung Hee Cho (Department of Mechanical Engineering, Yonsei Univ., Seoul, 03722, Korea) Corresponding author