Numerical simulation of hull curved plate forming by electromagnetic force assisted line heating

2017 International Conference on Material Engineering and Manufacturing

Wang, Ji^1,2 ; Wang, Shun^1 ; Liu, Yujun^1 ; Li, Rui^1 ; Liu, Xiao^1

School of Naval Architecture, Dalian University of Technology, Dalian, China^1

Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai, China^2

关键词: Alloy plates;    Complex curved surface;    Coupled numerical simulation;    Curved plates;    Electromagnetic forces;    FEM modeling;    Multi-physical fields;    New technologies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/265/1/012019/pdf
DOI  :  10.1088/1757-899X/265/1/012019

来源: IOP

【 摘 要 】

Line heating is a common method in shipyards for forming of hull curved plate. The aluminum alloy plate is widely used in shipbuilding. To solve the problem of thick aluminum alloy plate forming with complex curved surface, a new technology named electromagnetic force assisted line heating(EFALH) was proposed in this paper. The FEM model of EFALH was established and the effect of electromagnetic force assisted forming was verified by self development equipment. Firstly, the solving idea of numerical simulation for EFALH was illustrated. Then, the coupled numerical simulation model of multi physical fields were established. Lastly, the reliability of the numerical simulation model was verified by comparing the experimental data. This paper lays a foundation for solving the forming problems of thick aluminum alloy curved plate in shipbuilding.