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Influence of charging voltage and capacitance on energy conversion efficiency of electromagnetic launcher

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Abstract

Electromagnetic launcher is a kind of active protection system, which launches metal flying plate to intercept incoming objects. Different from the traditional active protection system, the flying plate gains kinetic energy from energy stored in the capacitor through electromagnetic induction. Under the same condition of energy storage, the higher the energy conversion efficiency is, the faster the initial velocity of the flying plate gains and the better the interception effect is. Based on the self-made launcher including a pulse capacitor, a crowbar circuit, a trigger vacuum switch, a self-made coil launcher and a high-speed camera, influence of the charging voltage and capacitance of the capacitor on the energy conversion efficiency by the method of numerical simulation and high-speed camera experiment has been performed. The results show that the higher the charging voltage or capacitance, the higher the energy conversion efficiency of the launcher is, but the increasing rate gradually decreases with the increase in charging voltage and capacitance. The main reason is that the flying plate has produced significant displacement in the acceleration stage, which makes flying plate separate from the coupling with the coil.

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Acknowledgements

The authors would like to acknowledge National Natural Science Foundation of China (Grant No. 11472178) to provide fund for conducting experiments.

Funding

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Authors and Affiliations

  1. Key Laboratory of Transient Physical Mechanics and Energy Conversion Materials of Liaoning Province, Shenyang Ligong University, Shenyang, 110159, China

    Enling Tang, Qing Gao, Ruizhi Wang, Yafei Han & Chuang Chen

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  1. Enling Tang
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  2. Qing Gao
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  3. Ruizhi Wang
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  4. Yafei Han
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  5. Chuang Chen
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Correspondence to Enling Tang or Ruizhi Wang.

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Tang, E., Gao, Q., Wang, R. et al. Influence of charging voltage and capacitance on energy conversion efficiency of electromagnetic launcher. Electr Eng 104, 2485–2495 (2022). https://doi.org/10.1007/s00202-022-01495-7

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  • DOI: https://doi.org/10.1007/s00202-022-01495-7

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