Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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Comparative Analysis of Bolt Torque Calculation Methods for Space Applications

우주산업용 볼트토크 계산법에 대한 비교 및 실험적 검증

  • Seo, Ji-Hwan (Satellite Structure Department, Korea Aerospace Research Institute) ;
  • Kim, Sun-Won (Satellite Structure Department, Korea Aerospace Research Institute) ;
  • Kim, Chang-Ho (Satellite Structure Department, Korea Aerospace Research Institute) ;
  • Jun, Hyuoung-Yoll (Satellite Structure Department, Korea Aerospace Research Institute) ;
  • Jeong, Gyu (Department of Mechanical Engineering, Chonbuk National University) ;
  • Lim, Jae Hyuk (Department of Mechanical Engineering, Chonbuk National University)
  • 서지환 (한국항공우주연구원 위성기계팀) ;
  • 김선원 (한국항공우주연구원 위성기계팀) ;
  • 김창호 (한국항공우주연구원 위성기계팀) ;
  • 전형열 (한국항공우주연구원 위성기계팀) ;
  • 정규 (전북대학교 기계공학과) ;
  • 임재혁 (전북대학교 기계공학과)
  • Received : 2017.09.27
  • Accepted : 2017.11.21
  • Published : 2017.12.31
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Abstract

In this study, the bolt torque calculation method for space industry was compared and verified experimentally. Currently, NASA, European Aerospace Agency, and US National Defense Standards are proposing standards for bolt torque estimation. However, these standards vary slightly and require a high level of comprehension. To address these challenges, we selected typical equations among the widely-used bolt torque calculation methodologies, and the predicted values were verified via clamping force test. In addition, we examined the changes in clamping force associated with handling and refastening.

본 연구에서는 우주산업용 볼트토크 계산법을 비교검토하고 실험적으로 검증한다. 현재 미국항공우주국, 유럽항공우주국, 미국국방규격 등에서는 고유의 볼트토크 산정을 위한 기준을 제안하고 있으나 이 기준들이 약간씩 달라 사용자의 높은 이해를 요구하고 있다. 이러한 문제를 해결하기 위해 널리 쓰이는 볼트토크 계산식 중 대표적인 식들을 선정하고 볼트토크 예측값 비교 및 체결축력시험을 통해서 예측값을 검증하였다. 아울러 취급 및 재체결작업에 의한 체결축력의 변화도 살펴보았다.

Keywords

References

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