Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Development of Knowledge-based Method to Automatically Derive the Deformation Estimation Formula due to Line Heating

선상가열 변형예측식 자동 산출을 위한 지식기반 방법의 개발

  • Lee, Joo-Sung (School of Naval Architecture & Ocean Engineering, University of Ulsan)
  • 이주성 (울산대학교 조선해양공학부)
  • Published : 2010.02.28
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Abstract

For the last couple of decades many studies have been carried out to find out solutions to improve the effectiveness and productivity of the plate forming process. The practical way for the automation of the plate forming process has not been, however, developed yet. Since the characteristics of heating machines may be different form each other, it is necessary to investigate the thermal deformation characteristics of the heating machine to be used in the automation system. And their characteristics may be updated as new information about thermal deformation by heating is accumulated. In this paper, data base system has been constructed based on the results of experiments and numerical analyses, which will be used in deriving the deformation estimation formula. The computer code which can automatically derive the deformation estimation formula has been also developed. This paper also illustrates how the formula is updated as experimental data are added. From the present findings, it can be said that the automatic deriving procedure may be important in the automated plate forming system since the heating line information to be generated must be directly influenced by the deformation estimation formula.

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References

  1. J.S. Lee : Plate Forming Automation System of Steel Plates by Line Heating Method(III), J. of the Society of Naval Architects of Korea, 34-2(1997), 85-89 (in Korean)
  2. C.D. Jang, Y.S. Ha, D.E. Ko and S.C. Moon : Determination of Inherent Strain Regions to Estimate Plate Deformation by Line Heating, J. of the Society of Naval Architects of Korea, 39-1(2002), 82-89(in Korean) https://doi.org/10.3744/SNAK.2002.39.1.082
  3. K.Y. Bae, Y.S. Yang, C.M. Hyun and S.I. Cho : Development of Simplified Formulas to Predict Deformations in Plate Bending Process with Oxy-Propane Gas Flame, Journal of the Korean Welding & Joining Society, 25-2(2007), 172-177 (in Korean) https://doi.org/10.5781/KWJS.2007.25.2.070
  4. J.S. Lee and D.Y. Lim : Thermal Deformation of Curved Plates by Line Heating, J. of Ocean Engineering and Technology, 19-1(2005), 33-38 (in Korean)
  5. J.S. Lee : Development of Numerical Control System for Plate Forming Automation, J. of Ocean Engineering and Technology, 17-1(2003), 72-79 (in Korean)
  6. J.Y. Lee and J.G. Shin : Relations between Input Parameters and Residual Deformation in Line Heating Process using Finite Element Analysis and Multi-Variate Analysis, J. of the Society of Naval Architects of Korea, 39-2(2002), 69-80 (in Korean) https://doi.org/10.3744/SNAK.2002.39.2.069
  7. K.J. Sona, J.O. Yunb, Y.W. Kimc, Y.-S. Yangb, : Analysis of Angular Distortion in Line-Heating, International J. of Mechanical Sciences, 49(2007) 1122–1129 https://doi.org/10.1016/j.ijmecsci.2007.02.008
  8. T. Terasaki, K. Yamaguchi, T. Nomoto and T. Kitamura : Study on Transverse Shrinkage and Angular Distortion Generated by Line Heating, J. Society of Naval Architecture of Japan, 193(2002), 65-74 (in Japanese)
  9. J.S. Lee : A Study on the Accuracy Control of Panel Blocks, J. of Ocean Engineering and Technology, 18-1(2004), 35-40 (in Korean)