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Computer aided precision cotrol in shipbuilding based on simulation

Research Project

Project/Area Number 07305044
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section総合
Research Field 船舶工学
Research InstitutionOsaka University

Principal Investigator

MURAKAWA Hidekazu (1996)  Osaka University, Joining and welding research institute, Associate Professor, 接合科学研究所, 助教授 (60166270)

上田 幸雄 (1995)  大阪大学, 溶接工学研究所, 教授 (30029037)

Co-Investigator(Kenkyū-buntansha) MASAOKA Kouji  Osaka Prefecture University, Faculty of Engineering, Lecturer, 工学部, 講師 (10244659)
TOMITA Yasumitsu  Osaka University, Faculty of Engineering, Professor, 工学部, 教授 (30029251)
NAKACHO Keiji  Osaka University, Joining and welding research institute, Associate Professor, 接合科学研究所, 助教授 (10112070)
UEDA Yukio  Kinki University,, 生物理工学研究所, 教授 (30029037)
村川 英一  大阪大学, 溶接工学研究所, 助教授 (60166270)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 1996: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1995: ¥3,800,000 (Direct Cost: ¥3,800,000)
Keywordsprecision / simulation / FEM / cutting / bending / welding / computer aided / shipbuilding
Research Abstract

The control of precision has been an important part of the manufacturing process of welded structures. However, conventional methods were largely dependent on experience and they did not have clear theoretical bases. Also, the analysis of the error observed in the process is limited within each process. The problem of precision is not analyzed as an overall problem which involves many processes and their interfaces.
Thus, the manufacturing process is divided into cutting, bending and welding and theories and finite elemnt codes to analyzed the individual process are developed in the first year of the research project. Then, fundamental guideline to combine these for making a system to control the precision is studied from the point of view of the total manufacturing process in the second year.
Generally, manufacturing cites, such as building dock, and computer simulations are entirely different in nature and it is very difficult to make mutual understanding between people working in these sections. To introduce computer simulation, good interface is necessary between menufacturing and Computers. In this research, strategic and conceptual modellings are proposed as such interfaces. Their effectiveness is demonstrated using various examples of applications.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] 上田幸雄他: "三次元熱弾塑性解析プログラムの開発と圧縮機の溶接組立への応用" 溶接学会論文集. 13・4. 628-634 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 川村、羅、上田: "固有ひずみを用いた弾性計算による溶接変形および残留応力の推定" 日本造船学会論文集. 180. 739-751 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 中長、盛岡、上田: "海洋構造物の溶接部の局部溶接変形量とその影響因子" 溶接学会論文集. 15・1. 136-140 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H. Murakawa: "Computational Welding Mechanics and Its Interface with Indusrial Application" Proc. Int. Symp. on Theoretical Prediction in Joining and Welding, JWRI, Osaka University. 231-245 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 川村英一他: "難鋼薄板の小容量エアプラズマアーク切断における残留応力および面内曲げ変形のFEM解析" 溶接構造シンポジューム'95、講演論文集(溶接学会). 259-264 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Luo, Murakawa, Ueda: "Prediction of Welding Deformation and Residual Stress by Elastic FEM Based on Inherent Strain" Proc. of 6th Int. Symp. JWS. Nagoya (1996). 551-556 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 上田幸雄他: "板継溶接終端部における変形に及ぼす諸条件の影響に関するFEM解析" 溶接構造シンポジューム'95、講演論文集(溶接学会). 247-252 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Ma, Murakawa, Ueda: "Effects of Initial Stresses on Welding Deformation and Residual Stresses" Proc. of 6th Int. Symp., JWS. Nagoya (1996). 557-562 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Murakawa: "Computational Welding Mechanics and Its Interface with Industrial Application" Proc.Int.Symp.on Theoretical Prediction in Joining and Welding, Osaka University. 231-245 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Murakawa, Y.Luo and Y.Ueda: "Prediction of Welding Deformation and Residual Stress by Elastic FEM Based on Inherent Strain" J.Society of Naval Architects of Japan. Vol.180. 739-751 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.Luo, H.Murakawa and Y.Ueda: "Prediction of Welding Deformation and Residual Stress by Elastic FEM Based on Inherent Strain" Proc.of 6th Int.Symp., JWS,Nagoya. 551-556 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Nakacho, J.Morioka and Y.Ueda: "Local Shrinkage and Rotations near the Joint by Welding in Offshore Structure and Their influential Factors" Quarterly Jornal of the Japan welding Society. Vol.15 No.1. 136-140 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.X.Ma, H.Murakawa and Y.Ueda: "Effects of Initial Stresses on Welding Deformation and Residual Stresses" Proc.of 6th Int.Symp., JWS,Nagoya. 557-562 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.G.Yuan, J.Wang, H.Murakawa and Y.Ueda: "Development of Finite Element Program of Three Dimensional Thermal-Elastic-Plastic Analysis and Its Application to Assembly of a Compressor by Welding" Quarterly Journal of the Japan welding Society. Vol.13 No.4. 628-634 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] S.Gu.H.Murakawa and Y.Ueda: "FEM Analysis on Influential Factors upon Deformation at End Part of Butt Welding" Proc.Welded Structure Symposium '95 (JWS). 247-252 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Sugihara, H.Murakawa, Y.Ueda and Y.Nishikawa and E.Aoyama: "Finite Element Simulation of Residual Stress and Two-dimensional Deformation Caused by Low Current Air Plasma Arc Cutting of the Thin Mild Steel Plate" Proc.Welded Structure Symposium '95 (JWS). 259-264 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Murakawa: "Computational Welding Mechanics and Its Interface with Indusrial Application" Proc.Int.Symp.on Theoretical Prediction in Joining and Welding Nov.26-27,1996,JWRI,Osaka University. 231-245 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 村川、羅、上田: "固有ひずみを用いた弾性計算による溶接変形および残留応力の推定" 日本造船学会論文集. 180. 739-751 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Luo.Murakawa,Ueda: "Prediction of Welding Deformation and Residual Stress by Elastic FEM Based on Inherent Strain" Proc.of 6th Int.Symp.,JWS,Nagoya. 551-556 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 中長、盛岡、上田: "海洋構造物の溶接部の局部溶接変形量とその影響因子" 溶接学会論文集. 15・1. 136-140 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Ma,Murakawa,Ueda: "Effects of Initial Stresses on Welding Deformation and Residual Stresses" Proc.of 6th Int.Symp.,JWS,Nagoya. 557-562 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 上田幸雄: "三次元熱弾塑性解析プログラムの開発と圧縮機の溶接組立への応用" 溶接学会論文集. 13. 628-634 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 中長啓治: "海洋構造物の溶接部の局部溶接変形量に関する研究" 溶接構造シンポジューム'95、講演論文集(溶接学会). 231-238 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 上田幸雄: "板継溶接終端部における変形に及ぼす諸条件の影響に関するFEM解析" 溶接構造シンポジューム'95、講演論文集(溶接学会). 247-252 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 村川英一: "軟鋼薄板の少容量エアプラズマアーク切断における残留応力および面内曲げ変形のFEM解析" 溶接構造シンポジューム'95、講演論文集(溶接学会). 259-264 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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