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

The Society of Naval Architects of Korea (대한조선학회)
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Plate Flattening Analysis in Line Heating Process using Bending Strains

굽힘 변형도를 이용한 선상가열 과정의 곡 펴짐 현상에 관한 연구

  • Park, Jung-Seo (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Kim, Jung (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Shin, Jong-Gye (Research Institute of Marine Systems Engineering, Seoul National University) ;
  • Hyun, Chung-Min (Institute of Industrial Technology, Sanmsung Heavy Industries Co.,Ltd.) ;
  • Doh, Young-Chil (Institute of Industrial Technology, Sanmsung Heavy Industries Co.,Ltd.) ;
  • Ko, Kwang-Hee (Department of Mechatronics, Gwangju Institute of Science and Technology)
  • 박정서 (서울대학교 조선해양공학과) ;
  • 김정 (서울대학교 조선해양공학과) ;
  • 신종계 (서울대학교 해양시스템공학연구소) ;
  • 현충민 (삼성중공업 산업기술 연구소) ;
  • 도영칠 (삼성중공업 산업기술 연구소) ;
  • 고광희 (광주과학기술원 기전공학과)
  • Published : 2008.08.31
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Abstract

In the line heating process, only angular distortion whose direction is perpendicular to that of a heating path is expected. However, it is observed that a deformation is induced in the direction of the heating line. Because of this, during forming a saddle type plate we experience unfavorable deformations in the unintended direction. In this paper we discuss the unwanted distortion in the manufacturing process by analyzing intermediate plates of saddle type during fabrication. For this analysis we consider the longitudinal and transversal directions separately and use the bending strain for the analysis.

Keywords

References

  1. Jang, C.D. and Moon, S.C., 1998, "A New Algorithm to Determine Heating Lines for Plate Forming by Line Heating Method," Journal of the Society of Naval Architects of Korea, Vol. 35, No. 2, pp. 104-113
  2. Lee, J.H. and Shin, J.G., 2002, "Relations between Input Parameters and Residual Deformation in Line Heating Process using Finite Element Analysis and Multi-Variate Analysis," Journal of the Society of Naval Architects of Korea, Vol. 39, No. 2, pp. 69-80 https://doi.org/10.3744/SNAK.2002.39.2.069
  3. Lee, J.S., Kim, S.I. and Oh, S.J., 1994, "Plate Forming Automation System of Steel Plates by Line Heating Method( I )", Journal of the Society of Naval Architects of Korea, Vol. 31, No. 4, pp. 139-146
  4. Park, J.S., Shin, J.G. and Ko, K.H., 2007a, "Geometric Assessment for Fabrication of Large Hull Pieces in Shipbuilding," Computer-Aided Design, Vol. 39, No. 10, pp. 870-881 https://doi.org/10.1016/j.cad.2007.05.007
  5. Park, J.S., Shin, J.G., Ko, K.H., Hyun, C.M. and Doh, Y.C., 2007b, "Development of an Automated Line Heating Information Extract System for Fabrication of Curved Hull Plates," ICCAS2007, Portsmouth, UK
  6. Ryu, C.H., 2002, "A Consistent Algorithm for Unfolded Flat Shape of Curved Ship's Hull Shells by Minimizing Strain Energy," Ph.D dissertation of Seoul National University
  7. Shin, J.G. and Lee, J.H., 2002 "Nondimensionalized Relationship Between Heating Conditions and Residual Deformations in the Line Heating Process," Journal of Ship Research, Viol. 46, No. 4, pp. 229-238
  8. Shin, J.G., Ryu, C.H., Lee, J.H. and Kim, W.D., 2003, "A User-friendly, Advanced Line Heating Automation for Accurate Plate Fabrication," Journal of Ship Production, Vol. 19, No. 1, pp. 8-15
  9. Shin, J.G. and Ryu, C.H., 2000, "Nonlinear Kinematic Analysis of the Deformation of Plates for the Ship Hull Fabrication," Journal of Ship Research, Vol. 44, No. 4, pp. 270-277
  10. Storch, R.L., Hammon C.P., Bunch H.M. and Moore R.C., 1995, Ship Production 2nd ed., The Society of Naval Architects and Marine Engineers, New Jersey

Cited by

  1. Determination of plates with inflection lines for hull plate forming vol.52, pp.5, 2015, https://doi.org/10.3744/SNAK.2015.52.5.365
  2. A study on the Thermal Deformation of Line Heated TMCP and Normalizing Steel vol.20, pp.5, 2016, https://doi.org/10.9726/kspse.2016.20.5.046