Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Resistance and Structural Safety of a 3M Carbon Fibier-based Kayak

3미터급 카본 카약의 저항성능 및 구조 안전성 연구

  • Seo, Kwang-Cheol (Dept. of Naval Architecture and Ocean Engineering, Mokpo National Maritime University) ;
  • Lee, Gyeong-Woo (Dept. of Naval Architecture and Ocean Engineering, Mokpo National Maritime University) ;
  • Park, Joo-Shin (Central Research Institutes, Samsung heavy industries)
  • 서광철 (목포해양대학교 조선해양공학과) ;
  • 이경우 (목포해양대학교 조선해양공학과) ;
  • 박주신 (삼성중공업 중앙연구소)
  • Received : 2019.04.02
  • Accepted : 2019.06.27
  • Published : 2019.06.30
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Abstract

Leisure and business facilities have been steadily developing in Korea. Among waterborne leisure vessels and equipment, the distribution and sale of kayaks and canoes have significantly increased. Previously, (FRP) materials were primarily employed for constructing kayaks. However, owing to global warming and depletion of natural resources, the demand for non-polluting renewable energy is rapidly increasing, which has increased the demand for carbon fibers. To meet the requirements of changing social consciousness, a carbon fiber-based commercial kayak was designed in this study. Resistance analysis and structural safety were conducted by employing software tool for verifying the reliability of the proposed kayak. The pressure resistance and frictional resistance were examined in a wide range of speed. Obtained results indicate that at speeds greater than 2.6 m/s, the pressure resistance significantly increases and the total resistance also increases. Furthermore, the results corroborate that the proposed kayak structure has a adequate safety with respect to the design loads that are considered during operating conditions.

최근 수상 레저 사업장과 레저기구의 개수는 지속해서 성장하고 있다. 수상레저기구 중에서도 카약과 카누의 보급률이 크게 증가하고 있다. 기존에는 주로 FRP 재료를 사용하여 제작하였으나, 지구온난화, 천연자원 고갈 등의 문제로 인해 청정에너지 및 신재생 에너지에 대한 필요성이 대두됨에 따라 탄소섬유에 대한 수요도 빠르게 증가하고 있다. 본 연구에서는 이러한 사회적인 변화 의식에 부합하기 위하여, 탄소섬유를 적용한 보급형 카약을 설계하고, 제품의 신뢰성을 검증하기 위하여 저항성능 및 구조 안전성 평가를 수행하였다. 속도 변화에 따른 압력저항과 마찰저항 변화를 검토하였으며, 속도 2.6 m/s 이상에서는 압력저항이 크게 증가하면서 전체저항이 커지는 현상이 발생한다. 현재 카약 구조는 운용 시 고려할 수 있는 설계하중을 고려 시, 충분한 안전율을 갖고 있음을 확인하였다.

Keywords

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