Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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A Study on the Development of Block Support Height Adjustment Device Using Static Nonlinear Analysis

정적 비선형 해석을 이용한 블록 지지대 높이 조정 장치 개발에 관한 연구

  • Chunsik Shim (Department of Naval Architecture & Ocean Engineering, Mokpo National University) ;
  • Gwangsan Cheon (Department of Naval Architecture & Ocean Engineering, Mokpo National University) ;
  • Daseul Jeong (Department of Naval Architecture & Ocean Engineering, Mokpo National University) ;
  • Kangho Kim (Department of Naval Architecture & Ocean Engineering, Mokpo National University) ;
  • Mutiara Setyaning Dwityas (Department of Naval Architecture & Ocean Engineering, Mokpo National University) ;
  • Deokyeon Lee (Department of Naval Architecture & Ocean Engineering, Mokpo National University) ;
  • Byeongguk Jeong (HD HYUNDAI Samho Co., Ltd) ;
  • Byeonghwa Kim (MTESS Co., Ltd)
  • 심천식 (국립목포대학교 조선해양공학과) ;
  • 천광산 (국립목포대학교 조선해양공학과) ;
  • 정다슬 (국립목포대학교 조선해양공학과) ;
  • 김강호 (국립목포대학교 조선해양공학과) ;
  • 무티아라 (국립목포대학교 조선해양공학과) ;
  • 이덕연 (국립목포대학교 조선해양공학과) ;
  • 정병국 ((주)HD현대삼호) ;
  • 김병화 ((주)MTESS)
  • Received : 2024.04.11
  • Accepted : 2024.07.22
  • Published : 2024.10.20
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Abstract

Currently, shipyards are using ship block supports to hold various pre-erection (PE) blocks during ship construction work. The height adjustment method of the ship block support is performed by workers hammering and driving the wedge part, which requires repetitive high-load work. Accordingly, there are concerns about musculoskeletal diseases and safety accidents. To prevent safety accidents and improve work efficiency, this study developed a block support height adjustment device using a hydraulic cylinder. It was designed considering the ease of movement of the block support height adjustment device and the ease of adjusting the height of the block support by workers within the shipyard. Numerical analysis was conducted to confirm the critical points of the structural members of the designed block support height adjustment device and to verify the safety of the stress-based structure. As a result of the analysis, it was confirmed that the stress occurring at the critical point of the structural member was lower than the design allowable stress, making it structurally safe. Afterwards, the block support height adjustment device was redesigned for lightweight, and after verification of structural safety through numerical analysis, a prototype was manufactured and performance evaluation was conducted.

Keywords

Acknowledgement

본 과제(결과물)는 2024년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업의 결과입니다 (광주전남플랫폼 : 2021RIS-002). 이 논문은 2024년도 정부(산업통상자원부)의 재원으로 한국산업기술진흥원의 지원을 받아 수행된 연구임(P0017006, 2024년 산업혁신인재성장지원사업)

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