研究员 博士生导师 硕士生导师
任职 : 爆炸技术研究所所长
性别: 男
毕业院校: 中国科学技术大学
学位: 博士
所在单位: 力学与航空航天学院
学科: 工程力学
办公地点: 力学楼224室
联系方式: 041184706163 科研之友主页: https://www.scholarmate.com/P/JzE7ru
电子邮箱: robinli@dlut.edu.cn
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论文类型: 期刊论文
发表时间: 2021-07-21
发表刊物: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷号: 31
期号: 3
页面范围: 2666-2675
ISSN号: 0957-4522
摘要: Research on electromagnetic stealth technology has always been one of the research hotspots. Combining the advantages of the coating absorbing model (millimeter thickness) and the structural absorbing model, the absorbing model of the nanoparticle distribution in the large-scale space (meter-scale thickness) is established. The smoke cloud clusters are applied by three different scales of 7 kg, 13 kg and 100 kg to produce space filled with Fe3O4/MWCNTs composite nanoparticles with dimensions of 3 m, 5 m and 11 m. The reflectivity R of the electromagnetic wave passing through the nano space is simulated by COMSOL software and compared with the reflectivity R ' calculated by the transmission line model. The results show that the reflectivity of the 3 m space generated by the 7 kg cloud explosion device is below - 10 dB in the 2-10 GHz frequency band, and the lowest value is - 73 dB. In the 5 m space produced by 13 kg cloud explosion device, the reflectivity value in the 2-6 GHz frequency band is below - 10 dB, and the lowest value is - 57 dB. The reflectivity of 11 m space produced by 100 kg cloud explosion device is between - 9.6 and 0 dB.