Development of Precise Prediction System of Welding Deformation for Large-scale Structure Using GPGPU Computing
| Project/Area Number |
25420873
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
Shibahara Masakazu 大阪府立大学, 工学(系)研究科(研究院), 准教授 (20350754)
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| Co-Investigator(Kenkyū-buntansha) |
ITOH Shinsuke 大阪府立大学, 大学院工学研究科, 客員准教授 (50535052)
MURAKAWA Hidekazu 大阪大学, 接合科学研究所, 教授 (60166270)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | GPGPU / 溶接変形 / 大規模解析 / 高速解析 / 熱弾塑性解析 / 船体構造 / 理想化陽解法FEM / ルートギャップ / 船体ブロック |
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| Outline of Final Research Achievements |
In this research, a new analysis system based on Idealized Explicit FEM using GPU was developed. Additionally, massively parallel processing is introduced to this system for high-speed computation. The proposed system is method is effective in large-scale analysis. Using this system, it's possible to predict the influence of several factors related to welding procedure such as tack welds, behavior of root gap, misalignment in an assembly process.
By developing this system, the prediction of deformation during welding assembling process in ship building becomes to be possible. Since this system can be applied to not only welding deformation problem in ship building but also welding residual stress problem of various structure. This means that the proposed system is promising in the future.
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Report
(4 results)
Research Products
(38 results)
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[Presentation] 理想化陽解法FEMを用いた多重パイプ継手の残留応力解析2015
Author(s)
生島 一樹, 北村 徳識, 河原 充, 南野 寿造, 柴原 正和, 湯藤 尚人, 永井 昭弘, 谷 和彦, 辻 丈彰, 山田 順也, 中谷 光良
Organizer
溶接学会平成27年度秋季全国大会
Place of Presentation
北海道科学大学（北海道札幌市）
Year and Date
2015-09-02
Related Report
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[Presentation] Enhanced large-scale analysis method and its application to multi-axial pipe weld2015
Author(s)
K. Ikushima, T. Minamino, A. Kawahara, M. Shibahara, H. Yuto, A. Nagai, K. Tani, T. Tsuji, J. Yamada, M. Nakatani
Organizer
The 68th Annual Assembly of the International Institute of Welding
Place of Presentation
Crowne Plaza Helsinki, Helsinki, Finland
Year and Date
2015-06-28
Related Report
Int'l Joint Research
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