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.

中文翻译：

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包含瞬态电感和电动势的电磁发射器混合仿真模型

尽管电磁发射器 (EML) 优于传统的火药发射器，但它们必须承受极端的电气和机械条件。因此，这些设备的优化设计和精确模拟至关重要。在本文中，提出了一种新的 EML 仿真策略，以实现高精度和降低复杂性。瞬态中的电感和电动势 (EMF) 变化对发射过程有相当大的影响，使用有限元方法 (FEM) 与电路仿真相结合进行建模。所提出的方法与具有 25 和 50 毫米方孔和 3 米长发射器的两种 EML（EMFY-1 和 EMFY-2）的实验结果非常吻合。