• Title/Summary/Keyword: FRP Ship

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Comparison Analysis on Status of Domestic & Overseas Vessel Fire Accident and Relevant Standards for the Fire Retardant Structure (국내외 화재발생현황 및 관련 방화구조 기준 비교 분석)

  • Um, Han-Chan
    • Journal of Korea Ship Safrty Technology Authority
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    • s.38
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    • pp.12-21
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    • 2015
  • 유리강화섬유(FRP,Fiber Reinforced Plastic)은 가볍고 내구성등이 우수하여 가공하기 쉬워 선박건조, 특히 어선의 건조재료로 많이 활용되고 있으나, FRP의 재료인 매트와 로빙이 인화성을 가진 수지와 접합되어 화재에는 매우 취약한 특성을 가지는 특성을 가진다. 최근 10년간의 중앙해양안전심판원의 어선화재 재결서 분석결과 전체의 약80%에 해당하는 화재사고가 기관실에서 발생하였다. 이에 새로 출범한 해양수산부는 FRP선박의 구조기준을 개정하여 총톤수10톤 이상 선박의 기관실에 대한 방화조치를 그 이하선박까지로 적용 확대하였으며, 어선구조기준 역시 행정규칙 행정예고를 통해 강화하려는 움직임을 보이고 있다. 본 지에서는 국내외 화재사고 발생현황 및 관련 규제 내용을 비교 분석하여 제시하였으며 분석결과, 일반선박의 방화조치에 대한 규제는 거의 유사하였으나 어선관련 규제의 경우, 영국의 규제가 가장 강화되어 있었으며 관련 화재사고 발생현황도 국내 및 일본과 비교해 보았을때 같은 기간 발생한 일반선의 화재발생척수 대비 어선의 화재발생척수가 적은것을 확인할 수 있었다.

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A Study of Property F.R.P Structure Strength According to the Direction of Lay-up in the Small Ship (적층 방향에 따른 F.R.P 구조강도특성에 관한 연구)

  • 고재용;배동균;윤순동
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2002.11a
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    • pp.101-105
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    • 2002
  • FRP(Fiber glass reinforced plastics) is compound with materials, which are created to combine each other materials, of which nature of mechanical and chemical are different. Even though the weight and the thickness are identic, its physical figure of characteristic changes with consisting of lay-up and work situation. It is also a method of creating after manufacturing of mould. It has feature that manufacturing of FRP runs parallel design of material with design of structure simultaneously. The rule of FRP structure is distinguished from the length of a ship and it is hard to catch the feature of structure mechanics due to identical formula and figure used for it regardless of the shape of a ship or the speed. This studying, basing on a small FRP ship, will show te fundamental data needed to design of structure analysing the feature of intensity with direction, the method of Lay-up, and the characteristic of materials of FRP.

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On the Standardization of FRP Ships for the Cooperative Production System (강화플라스틱선의 협동화 생산시스템 운용을 위한 표준화 연구)

  • Na, Seung-Soo;Kim, Young-Hun;Kim, Keun-Cheol
    • Journal of the Society of Naval Architects of Korea
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    • v.42 no.3
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    • pp.276-283
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    • 2005
  • The cooperative production system was proposed as an efficient production system to reduce the ship construction cost and to enhance the competitiveness for small/medium sized shipbuilder in the previous paper. In viewpoint of cooperative production system, the specialization of the FRP ship sizes has already been accomplished to reduce the number of the hull molds by FRP shipbuilders of the Sapjin industrial complex located in Mokpo area in 2003. There also exist lots of effective methods, as a cooperative production system, to cut down the construction cost. In this study, an effective production system in connection with the super structure and outfitting members is proposed such as the standardization of those items and specialized company which intensively produces the super structure and outfitting members at the collectivization area for cooperative work.

On the Development of Bonded Joints for Modular FRP Hulls using Moulding-In Concept (모듈방식 FRP 선체를 위한 Moulding-In 개념 기반의 접합 이음부 개발에 관한 연구)

  • Jeong, Han Koo
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.30 no.6
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    • pp.531-539
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    • 2017
  • This paper deals with the development of bonded joints for fibre reinforced plastic (FRP) hull structures using moulding-in concept. Focus is placed on bonded in-plane connections between two adjacent panels that could form the boundaries of hull structural module. Traditional construction in FRP hull structures requires the construction of a mould, usually from steel or aluminium. In this construction the FRP materials are laid in the mould, and resin is saturated, and then the structural member is cured. This is expensive since it involves the fabrication of metal hull mould for every different hull type, which is sacrificed after the production of the FRP ship. One way of encouraging greater use of FRP in ship construction is to investigate the possible construction of FRP hull structures in a similar manner to metallic ships, that is in terms of blocks or modules. Such a manner of construction would eliminate the need for expensive hull moulds permitting greater flexibility in the construction of FRP ships. The main issue then would be the design and construction of adequate bonded connections between adjacent panels. To fulfill this object, the simplified and automated way of manufacturing joint edge shapes for bonded joints is developed, and their structural assessment is performed in both experimentally and numerically.

The Development of Racing Boat for Amateur (아마추어용 경정 모터보트의 개발)

  • Kwon, Soo-Yeon;Choung, Kwang-Gyo
    • Journal of Korea Ship Safrty Technology Authority
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    • s.26
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    • pp.36-46
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    • 2009
  • 본 연구에서는 문화관광부의 2008년도 스포츠연구개발사업의 취지에 맞게 소형선에서 가장 중요시되는 경량화를 위한 신소재를 적용하여 구조적으로 충분한 강도를 가지면서 아마추어들이 편하고 안전하게 모터보트 레이싱을 즐길 수 있도록 안전성 및 성능이 우수한 아마추어용 경정 보트를 개발하였다. 본 연구개발에 있어서 목재 및 FRP등 선체재료에 따른 구조해석을 수행하여 구조강도특성을 분석하고 워터제트형 경정 모터를 개발하여 경정 보트 시제품을 건조하여 시운전을 실시하는 등 안전성 및 성능을 확인하였다.

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A Study on the Characteristics of FRP Composites and Structural Adhesives (FRP선체 복합재료와 구조용 접착제의 실험적 연구)

  • Choi, Han-Kyu
    • Journal of Korea Ship Safrty Technology Authority
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    • s.26
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    • pp.4-23
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    • 2009
  • 선체용 복합재료 및 구조용 접착제와 신공법인 진공 성형법으로 건조한 레저선박에 강화플라스틱 구조기준을 그대로 적용하기에는 무리가 있으며, 따라서 복합재료, 수지, 접착제 및 진공 성형법 등 현장조사를 토대로 복합소재 및 접착제를 이용한 시험편을 제작하여 복합재료의 기계적 특성, 구조용 접착제에 대한 신뢰성 평가 및 국내외 기준 비교 검토를 통한 국내 실정에 적합한 검사기준을 제안하고자 한다.

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