A Hybrid Simulation Model for Electromagnetic Launchers including the Transient Inductance and Electromotive Force


Tosun N., Polat H., Ceylan D., Karagoz M., Yildirim B., Gungen I., ...More

IEEE Transactions on Plasma Science, vol.48, no.9, pp.3220-3228, 2020 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 9
  • Publication Date: 2020
  • Doi Number: 10.1109/tps.2020.3016930
  • Journal Name: IEEE Transactions on Plasma Science
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.3220-3228
  • Keywords: Inductance, Rails, Finite element analysis, Integrated circuit modeling, Mathematical model, Transient analysis, Solid modeling, Electromagnetic launchers (EMLs), electromotive force (EMF), finite element method (FEM), pulse power supplies, transient inductance, velocity skin effect (VSE), DIFFUSION, RAILS

Abstract

Although electromagnetic launchers (EMLs) are superior to classical gun-powder-based launchers, they have to withstand extreme electrical and mechanical conditions. Therefore, the optimal design and precise simulations of these devices are crucial. In this article, a new simulation strategy for EMLs is proposed in order to achieve high accuracy and reduced complexity. The inductance and electromotive force (EMF) variations in the transient, which have a considerable influence on the launch process, are modeled using the finite element method (FEM) coupled with electrical circuit simulation. The proposed method has a good agreement with the experimental results of two EMLs (EMFY-1 and EMFY-2), which have 25- and 50-mm square bores and 3-m-length launchers. The study showed that the hybrid model with transient inductance and EMF calculations showed a good agreement with experiments that have 625 kJ-3.241-MJ input energies.