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Acta Armamentarii ›› 2023, Vol. 44 ›› Issue (3): 910-918.doi: 10.12382/bgxb/2021.0818

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Structural Design and Shielding Performance of Multi-spectral Interfering Smoke Module

LI Xiaonan1,2(), LI Tianpeng1(), ZHANG Kaichuang3(), CHEN Hao3(), GUO Aiqiang1(), GAO Xinbao1()   

  1. 1 Shijiazhuang Campus, Army Engineering University, Shijiazhuang 050003, Hebei, China
    2 Unit 63936 of PLA, Beijing 102202, China
    3 Research Institute of Chemical Defense, Academy of Military Sciences, Beijing 102205, China
  • Received:2021-12-01 Online:2023-02-03

Abstract:

The survivability of battlefield targets has been greatly threatened due to the employment of a series of advanced precision-guided munitions. To meet the performance requirements of multi-band interference, the multi-spectral interfering agent and smoke module were prepared through in-situ synthesis reaction, compound dispensing technique and numerical calculation, respectively. The infrared transmittance, mm-Wave attenuation and visible transmittance spectra of the multi-spectral interfering agent were characterized by a smoke screen test system. Mass extinction coefficients at infrared and visible bands were measured using the Beer-Lambert law. The matching performance of smoke module and multi-spectral interfering agent was examined by using an explosion experiment. The smoke screen production process, effective smoke screen width and smoke duration were obtained. The transmittance of the multi-spectral interfering agent was 1.98% at 1-3 μm, 3.04% at 3-5 μm, 8.11% at 8-14 μm and 6.96% at 0.4-0.8 μm. αe was 1.28 m2/g at 1-3 μm, 1.14 m2/g at 3-5 μm, 0.82 m2/g at 8-14 μm and 0.87 m2/g at 0.4-0.8 μm. The attenuation values of 3 mm and 8 mm waves were -14.52 dB and -11.76 dB. The duration of smoke screen was greater than 60 s, and the effective smoke screen width exceeded 60 m. This study demonstrates that the smoke module equipped with multi-spectral interfering agent is an efficient strategy to jam advanced precision-guided munitions.

Key words: smoke module, multispectral interfering agent, carbon fiber, graphene, carbon nanotubes, multi-spectral interference