Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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A study on the Multibody Dynamics Simulation-based Dynamic Safety Estimation for Installation and Operation of A-Frame in Retrofit Vessel

개조 선박의 A-Frame 설치 및 운용을 위한 다물체 동역학 시뮬레이션 기반 동적 안전성 검토에 관한 연구

  • 오재원 (선박해양플랜트연구소 해양플랜트산업지원센터) ;
  • 김형우 (선박해양플랜트연구소 해양플랜트산업지원센터) ;
  • 권오순 (한국해양과학기술원) ;
  • 강현 (한국해양과학기술원)
  • Received : 2020.08.07
  • Accepted : 2020.08.26
  • Published : 2020.10.31
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Abstract

This paper considers the development of the dynamic analysis model and simulation-based operation safety estimation of A-Frame to be applied to the test evaluation support vessel for real sea test. The support vessel will be manufactured by modifying the existing offshore support vessel. Also, development and installation of various sensors and supporting facilities for test evaluation are under preparation. Among these facilities, A-Frame is an equipment that transfers marine equipment from ship deck to the sea floor, and is being designed to transfer up to 50 ton class equipment. However, the A-Frame is a moving equipment using hydraulic cylinders. When the 50 ton equipment is attached and transferred to A-Frame, the buckling of cylinders may occur or A-Frame becomes inoperable due to the influence of huge inertia. For this reason, safety verification should be performed using dynamic analysis techniques that can take into account huge inertia forces in the design of A-Frame. Therefore, in this study, A-Frame and ship behavior were modeled using dynamic analysis method, and the applied loads of various equipment including hydraulic cylinder of A-Frame was measured and the operation safety review was performed.

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