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

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Thermal Vacuum Test and Thermal Analysis for a Qualification Model of Cube-satellite STEP Cube Lab.

큐브위성 STEP Cube Lab.의 임무 탑재체 인증모델의 열진공시험 및 열모델 보정을 통한 궤도 열해석

  • Kang, Soo-Jin (Space Technology Synthesis Laboratory, Department of Aerospace Engineering, Chosun University) ;
  • Ha, Heon-Woo (Space Technology Synthesis Laboratory, Department of Aerospace Engineering, Chosun University) ;
  • Han, Sung-Hyun (Space Technology Synthesis Laboratory, Department of Aerospace Engineering, Chosun University) ;
  • Seo, Joung-Ki (SaTReC(Satellite Technology Research Center), KAIST) ;
  • Oh, Hyun-Ung (Space Technology Synthesis Laboratory, Department of Aerospace Engineering, Chosun University)
  • Received : 2015.03.18
  • Accepted : 2016.01.22
  • Published : 2016.02.01
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Abstract

Qualification model(QM) of main payloads including concentrating photovoltaic system using fresnel lens, heating wire cutting type shockless holding and release mechanism, and MEMS-based solid propellant thruster have been developed for the STEP Cube Lab.(Cube Laboratory for Space Technology Experimental Project), which is a pico-class satellite for verification of core space technologies. In this study, we have verified structural safety and functionality of the developed payloads under a qualification temperature range through the QM thermal vacuum test. Additionally, a reliability of thermal model of the payloads has been confirmed by performing a thermal correlation based on the thermal balance test results.

우주기반기술 검증용 극초소형 위성 STEP Cube Lab.(Cube Laboratory for Space Technology Experimental Project)의 주요 탑재체인 집광형 프레넬렌즈가 적용된 고효율 집광형 태양전력시스템, 열선 절단방식이 적용된 무충격 구속분리장치 그리고 MEMS 기반의 고체추력기에 대해 인증수준의 열진공 시험과 열평형 시험을 수행하였다. 이를 통해 열진공 환경 하의 인증수준의 시험온도규격에서 탑재체의 구조건전성 및 정상작동성을 검증하고, 열평형 시험 결과로부터 보다 신뢰성 높은 보정된 열해석 모델을 확립하였다. 본 논문에서는 주요 임무 탑재체의 인증수준의 열환경 시험에 대한 기능시험 결과 및 시험 결과로부터 수행된 열모델 보정과 최종 열모델의 궤도 열해석 결과에 대해 기술하였다.

Keywords

References

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