Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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On-orbit Thermal Analysis of Pico-class Satellite STEP Cube Lab. for Verification of Fundamental Space Technology

우주기반기술 검증을 위한 극초소형 위성 STEP Cube Lab.의 궤도 열해석

  • Kang, Soo-Jin (Space Technology Synthetic Laboratory, Department of Aerospace Engineering, Chosun University) ;
  • Ha, Heon-Woo (Space Technology Synthetic Laboratory, Department of Aerospace Engineering, Chosun University) ;
  • Oh, Hyun-Ung (Space Technology Synthetic Laboratory, Department of Aerospace Engineering, Chosun University)
  • Received : 2014.03.30
  • Accepted : 2014.07.31
  • Published : 2014.09.01
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Abstract

STEP Cube Lab. classified as a pico-satellite has been being developed by SSTL(Space Technology Synthesis Laboratory) in Chosun University. Its main mission objective is to perform the on-orbit verification of core space technologies, which will be the potential candidates for future space missions. In this paper, to guarantee successful mission operation of the cube satellite under extremely severe space thermal environment condition, the system level thermal design and analysis has been performed. The effectiveness of the design has been verified through on-orbit thermal analysis of cube satellite.

STEP Cube Lab.은 조선대학교 항공우주공학과 우주기술융합연구실에서 개발 중인 극초소형 위성으로 구분되는 1U 큐브위성으로, 논문 연구 실적으로만 그친 우주핵심기술을 발굴 및 탑재하여 궤도 검증 실시 및 해당 분야 기술의 지적 저변확대에 공헌을 목표로 한다. 이에 본 논문에서는 주요 탑재체인 가변방사율 라디에이터, 무충격 구속분리장치 그리고 MEMS 고체추진로켓 등을 탑재하여 극한 우주 열환경에서의 위성 시스템과 탑재 체의 안정적인 궤도 운용 및 기술 검증을 위해 시스템 통합 열해석 및 열제어를 실시하였으며, 이를 통해 해석결과 분석 및 열제어 설계의 타당성을 입증하였다.

Keywords

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