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논문 기본 정보

자료유형
학술저널
저자정보
Jun-Seok Park (Samsung Heavy Industry) Hyun-Ho Lee (Pusan National University) Jung-Kwan Seo (Pusan National University)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第41卷 第3號
발행연도
2023.6
수록면
195 - 201 (7page)

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초록· 키워드

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Thermo-elasto-plastic analysis using nonlinear finite element analysis is used for predicting welding-induced structural deformation; however, its application in the prediction of welding deformation in large structures, such as ships and offshore plants, is practically impossible. Therefore, in this study, an inherent strain-based thermal deformation analysis method, which can be applied to large structures, was developed; furthermore, the inherent strain-based analysis was used for predicting the welding deformation occurring during block erection welding. However, although the tendency is somewhat similar in terms of quality, it still differs from the actual measured value in terms of quantity. In this study, a regression equation was derived by analyzing the sensitivity of the variables used in the existing method, and, subsequently, the results corresponding to the measured values were obtained; finally, the accuracy improvement for the three ships was confirmed. Therefore, using the proposed method, it is possible to improve the technology of predicting and controlling hull deformation.

목차

Abstract
1. Introduction
2. Preprocessing Technique and Variables
3. Sensitivity Analysis
4. Conclusions
References

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