Study on the Propagation of Dimensional Deviation in the Hull Block Building Process

Autor:	Wang Can, Zhang Yansong, Xinmin Lai, Sun Jin, Changhui Liu, Liu Jianfeng
Rok vydání:	2020
Předmět:	Shipbuilding Materials science business.industry Mechanical Engineering Building process Block (telecommunications) Hull Ocean Engineering Structural engineering business
Zdroj:	Journal of Ship Production and Design. 36:143-151
ISSN:	2158-2874 2158-2866
Popis:	Dimensional accuracy of hull block plays a critical role in guaranteeing the whole ship accuracy and reducing the hull butt-joint cost. The current industry practice of dimensional control in shipbuilding mainly focuses on the prediction of cutting and welding deformation based on engineering experience. Its main limitation is that the propagation and accumulation of deviations in the whole building process are neglected. In this article, cutting errors, assembly deviations, welding shrinkages, turnover distortions, and thermal expansions generated at different stages are analyzed. The propagation and accumulation of deviations and variations in the double-bottom block building process are studied based on the measured data in the whole process. Finally, the correlations of deviations between the adjacent stage are concluded. The conclusions can be used to guide the accuracy control in the hull block building process and reduce dimension trimming.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1439aab3cb09df484e223feb1fb2ca30 https://doi.org/10.5957/jspd.2020.36.2.143 Zobrazit plný text záznamu Plný text ve formátu PDF