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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2013.1
- 수록면
- 482 - 488 (7page)
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초록· 키워드
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Welding is the primary joining process in manufacturing marine structures. As a way to improve the dimensional quality of products in shipyard during the production process, the welding distortion and their estimation have been studied rigorously. The welding distortion accounts for major geometrical variations in the intermediate products in shipbuilding processes and greatly affects the downstream assembly processes. The residual stresses, caused by the non-nominally shaped intermediate products, affect the magnitude of welding distortions as well. In previous research, an initial variation and welding distortion of the nominal parts are described as a linear superposition by the modified method of influence coefficient. However this research neglects the effects of the welding variations and residual stress to the final assembly spring-back deviation shape and only considers the mean deviation of welding distortion. This paper suggests a compliant assembly theory which includes the welding deformation using method of influence coefficient. The proposed model is based on the sources of variation and sensitivity matrix, which effectively represent the patterns of welding distortion of non-nominal plate parts. This suggested model is validated using the experimental data of thin plate welding.
목차
ABSTRACT
1. 서론
2. 기존 연구 분석
3. 공차 해석 모델링
4. 결론
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