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

  • 제47권3호
  • /
  • Pages.421-429
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  • 2010
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  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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중량물의 동적 거동에 미치는 크레인 붐(boom)의 탄성 영향 분석

Analysis of an Elastic Boom Effect on the Dynamic Response of a Cargo

  • 박광필 (대우조선해양 선박해양연구소) ;
  • 차주환 (서울대학교 공학연구소) ;
  • 이규열 (서울대학교 조선해양공학과 및 해양시스템공학연구소)
  • Park, Kwang-Phil (Ship and Ocean Research Institute, Deawoo Shipbuilding & Marine Engineering Co., Ltd.) ;
  • Cha, Ju-Hwan (Engineering Research Institute, Seoul National University) ;
  • Lee, Kyu-Yeul (Department of the Naval Architecture and Ocean Engineering, and Research Institute of Marine System Engineering, Seoul National University)
  • 투고 : 2010.01.22
  • 심사 : 2010.04.08
  • 발행 : 2010.06.20
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초록

In this paper, in order to analyze the dynamic response of a floating crane when it lifts a heavy cargo, the boom of the floating crane is considered as an elastic beam. The boom is divided into elements based on finite element formulation and the floating frame of reference formulation and nodal coordinates are employed to model the boom as a flexible body. As an extension of the previous study, in order to consider spatial motion in waves, the coupled equations of motions of the 6 degree of freedom (DOF) floating crane and 6 DOF cargo are developed based on the flexible multibody system dynamics. The 3 dimensional deformation of the elastic boom is considered with 18 DOF. The dynamic simulation of the floating crane and the cargo is performed under regular wave conditions with various cargo weights. Finally, the effects of the elastic boom on lifting cargo are discussed by comparing the simulation results between the elastic boom and a rigid boom.

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참고문헌

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