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Analytical optimization on geometry of uniform pressure coil in electromagnetic forming and welding

  • Zhipeng Lai
  • Quanliang Cao
  • Xiaotao Han
  • Liang LiEmail author
ORIGINAL ARTICLE
  • 19 Downloads

Abstract

This paper reported an analytical formulation for the optimum geometry of a uniform pressure coil used in electromagnetic forming and welding. To characterize the energy efficiency of the coil, we defined the objective function as the ratio between the produced magnetic pressure and the required magnetic energy. We then deduced an analytical formulation of the objective function in terms of the geometry and electromagnetic parameters. Based on the analytical formulation, we finally deduced the optimum configuration of the coil geometry in analytical form. To validate the proposed analytical formulation, we analytically and numerically analyzed a uniform pressure coil fabricated in our laboratory, showing that the proposed analytical formulation can well reproduce the numerical results over a broad range of geometric parameters. In addition, it was found that the uniform pressure coil exhibits an optimum channel height, which can be analytically expressed in terms of the coil geometry. In summary, the present study provides an efficient method for designing a uniform pressure coil.

Keywords

Uniform pressure coil Electromagnetic forming Analytical design Optimization Coil geometry 

Notes

Funding information

The authors sincerely thank the supports from the China Postdoctoral Science Foundation (2018M632856) and Young Elite Scientists Sponsorship Program by CAST (YESS, 2018QNRC001).

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.Wuhan National High Magnetic Field CenterHuazhong University of Science and TechnologyWuhanChina
  2. 2.State Key Laboratory of Advanced Electromagnetic Engineering and TechnologyHuazhong University of Science and TechnologyWuhanChina

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