Author:
Zhao Ziwei,Yuan Hua,Zhao Yao,Zeng Fanglin
Abstract
The forming process of curved ship plate suffers from a low degree of automation, mainly due to the lack of an effective processing-scheme design method. In this paper, based on the proposed concept of the “basic amount of forming plasticity”, which can connect the plastic strain induced by the line heating and the deformation to form the target shape, a database is firstly established to describe the plastic strain provided by the heating coil with specific processing parameters, considering the effect of the plate boundary and adjacent heating lines. Secondly, a finite element method is developed and presented to calculate the plastic strain needed to form the target shape. Finally, a processing-scheme design method for forming the curved ship plate is verified by the case study of three typical types of shape: sail-type plates, saddle-type plates, and curved plates with torsion. The verification result shows the processing-scheme design method can provide helpful guidance for the practical forming process in shipyards.
Funder
Talent Team Project of Zhanjiang City in 2021 and the R & D and industrialization project of the offshore aquaculture cage nets system of Guangdong Province of China
Subject
Ocean Engineering,Water Science and Technology,Civil and Structural Engineering
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