Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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A Study on the Analysis of Welding Distortion for Moon Pool Structure of FPSO Vessel

FPSO선 Moon Pool구조의 용접변형 해석에 관한 연구

  • KIM SANG-IL (Ship & Marine Structure R&D Team, Daewoo Shipbuilding & Marine Engineering Co., Ltd.)
  • 김상일 (대우조선해양(주) 선박해양구조연구팀)
  • Published : 2003.06.01
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Abstract

The welding distortion of a hull structure in the shipbuilding industry is inevitable at each assembly stage. The geometric inaccuracy caused by the distortion tends to preclude the introduction of automation and mechanization. Thus, additional man-hours are needed for the adjusting work in the assembly stage. To overcome this problem, a distortion control method should be applied. For this purpose, it is necessary to develop an accurate prediction method that can explicitly account for the influence of various factors on the welding distortion. In order to minimize the weld-induced residual deformation, this paper proposes the optimum welding sequence as a method for distortion control. The validity of this method has been substantiated by a number of numerical simulations and experiments.

Keywords

References

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