書誌事項
- タイトル別名
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- Enhanced Idealized Explicit FEM for Predicting Welding Deformation in Complex Large-Scaled Structure and Application to the Real Structure
抄録
In the fabrication of steel structures, welding is widely utilized to join the materials. Due to the welding, distortions are inevitably generated, and these distortions may cause problems in accuracy or labor costs. In this research, to establish an analysis method which can predict the welding distortions in complex large-scale structures, we proposed a new analysis method based on the Idealized Explicit FEM. In the proposed method, an algebraic multigrid method was introduced to the Idealized Explicit FEM to achieve an efficient analysis in realistic structures. The proposed method was applied to the prediction of the welding distortion in the base structures of the construction machine. The number of welding passes was 28. The predicted and measured distortions were compared. As a result, it was demonstrated that the proposed method has a high analysis accuracy. The analysis finished within the realistic time within 35 hours. The influence of welding sequence on the deformation was also investigated by changing welding sequence. The result indicated that the welding sequence may have considerable effect on the welding distortion and is necessary to be investigated in advance of the production.
収録刊行物
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- 溶接学会論文集
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溶接学会論文集 37 (4), 141-151, 2019
一般社団法人 溶接学会
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詳細情報 詳細情報について
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- CRID
- 1390564227326602624
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- NII論文ID
- 130007732168
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- ISSN
- 24348252
- 02884771
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可