Investigation on mitigation of welding deformation on assembly of ship hull block using ultra large scale analysis method
| Project/Area Number |
26889052
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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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 |
Ikushima Kazuki 大阪府立大学, 工学(系)研究科(研究院), 助教 (80734003)
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| Project Period (FY) |
2014-08-29 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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)
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| Keywords | 有限要素法 / 船体ブロック / 溶接変形 / 非線形解析 / 大変形 / 大規模非線形解析 / 画像計測 |
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| Outline of Final Research Achievements |
In this research, a new analysis method based on the Idealized Explicit FEM, which can perform large scale simulation and is gathering attention, was developed. In addition, the developed method was applied to the fundamental investigation of welding distortion on the assembly process of ship hull block.
As a result of investigation, it was shown that it is possible to analyze the buckling behavior which includes large change of deformation tendency by using Idealized Explicit FEM. This kind of behavior may cause the collapse of analysis in the conventional method which is based on static implicit FEM. In addition, the developed method was applied to the simulation of the welding deformation on welding assembly process of ship hull block. As a result it was found that the developed method can analyze the large scale problem within the reasonable computing time.
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Report
(3 results)
Research Products
(15 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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