Approximately Theoretical Resolution of the Velocity of the Metallic Flyer Plates Driven by Magnetic Field

Based on the energy conservation relation and some assumptions, an onedimensional physical model is proposed to predict the velocity of the metallic flyer plates driven by magnetic field. In this model, the dynamic change of the inductance in work space, the ablation energy and the magnetic field energy produced during the process of magnetic driving are considered. Three experimental examples are used to verify the validity of the model. The results show that the model can accurately predict the velocity of the flyer plates under the conditions of no shock formation and no obvious internal energy accumulation in the plates.