Transactions of Materials and Heat Treatment

Title：Buckling problem on electromagnetic flanging for pipe under biaxial loading

Authors： Zhang Wuming Zhang Wang Qiu Li

Unit： China Three Gorges University State Grid Anhui Electric Power Co. Ltd. Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station

KeyWords： electromagnetic flanging multi coil system biaxial loading buckling robustness

ClassificationCode：TG391；TM154

year,vol(issue):pagenumber：2022,47(8):102-110

Abstract：

Compared with the electromagnetic flanging of single coil, the electromagnetic coupling of electromagnetic flanging under biaxial loading is more complex, which leads to reduce robustness of the system and it′s prone to buckling problems. Therefore, the reasons for the buckling phenomenon were analyzed, and it was found that the main factor for the buckling was excessive difference in the magnetic flux distribution caused by the axial coil in flanging area. Then, by adopting the method of optimizing the structural parameters for the axial coil, the simulation model was established, the exploration scheme was designed, the influence law of the structural parameters for the axial coil on the electromagnetic flanging under biaxial loading was revealed, and a new scheme was formed according to the simulation analysis results to select the better parameters combination. Furthermore, the electromagnetic flanging results of the original scheme and the new scheme under biaxial loading were compared. The results show that the electromagnetic flanging scheme under biaxial loading with optimized axial coil parameters maintains good forming effect in a wider discharge range, the forming performance is improved, and the robustness is stronger.

Funds：

国家自然科学基金资助项目（51877122，51507092）；三峡大学学位论文培优基金项目（2021SSPY061）

作者简介：张无名（1997-），男，硕士研究生，E-mail：nameless_zhang@qq.com；通信作者：邱立（1984-），男，博士，副教授，E-mail：Doctor_QiuL@163.com

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