등가하중법을 이용한 PCTC 박판 블록 용접변형에 관한 연구

A Study on Welding Deformation of Thin Plate Block of PCTC by Using Equivalent Load Method

  • Kang, Sung-Koo (Research Institute of Technology, STX Offshore & Shipbuilding) ;
  • Yang, Jong-Soo (Research Institute of Technology, STX Offshore & Shipbuilding) ;
  • Kim, Ho-Kyung (Research Institute of Technology, STX Offshore & Shipbuilding) ;
  • Heo, Joo-Ho (Research Institute of Technology, STX Offshore & Shipbuilding)
  • 발행 : 2011.09.30

초록

The use of thin plate increases due to the need for light weight in large ship. Thin plate is easily distorted and has residual stress by welding heat. Therefore, the thin plates should be carefully joined to minimize the welding deformation. In this study, the welding deformation of PCTC which use a thin plate is investigated by using equivalent load method. The analysis model of 10, 11, 12, upper and garage deck is composed of thin plate of 6mm which is susceptible to welding heat. For two different welding sequences, the welding deformation is calculated and its trend is investigated. The influence of gravity on welding deformation is studied.

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