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

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Random Vibration Characteristics of a Whole Structure Composite Satellite Having Hybrid Composite Sandwich Panels

하이브리드 복합재 샌드위치 패널로 구성된 전구조 복합재 위성의 랜덤진동 특성 평가

  • Received : 2010.06.04
  • Accepted : 2010.06.24
  • Published : 2010.08.01
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Abstract

Whole composite structure small class (150kg) satellite, STSAT-3, was initially developed in Korea. The structure does have aluminum frames that support the structure, and it is composed of only composite sandwich panels. A number of electronic boxes and mechanical apparatus will be shielded within the compartments built up by the composite panels. This study focused on the random vibration responses of the satellite. For this objective, vibration tests and analyses have been successfully performed with respect to STM (structure and thermal model) of the satellite. Additionally, through the experiment and theoretical analyses, the both results' accuracy was verified by comparison each other.

전구조 소형 복합재 위성인 과학기술위성 3호가 국내 최초로 개발되었다. 과학기술위성 3호는 기존의 위성과 달리 알루미늄 프레임이 없는 구조로 되어있으며 알루미늄 코어에 적층복합재 스킨을 가진 샌드위치 패널의 조합으로 구성되었다. 이 복합재 패널의 결합으로 구성된 격자형태의 공간에 다수의 전장박스와 탑재체 및 장치들이 장착된다. 본 연구는 과학기술위성 3호의 랜덤진동 응답에 관한 연구이며 이를 위하여 FEA 해석과 시험이 수행 되었다. 진동시험 결과와 전산해석결과를 서로 상호 비교 검토함으로써 위성의 진동 특성을 규명하고 결과의 신뢰성을 검증하였다.

Keywords

Acknowledgement

Supported by : 한국과학기술원(KAIST) 인공위성연구센터(SaTReC), 한국항공우주연구원(KARI)

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