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doi:  10.12013/qxyjzyj2017-047
不同材料建筑物的雷电电磁脉冲屏蔽效能对比试验

Contrast experiment of lightning electromagnetic pulse shielding effectiveness in different building materials
摘要点击 86  全文点击 67  投稿时间:2017-06-20  修订日期:2017-07-19
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基金:  国家自然科学基金(编号:41775007)
中文关键词:  雷电,电磁脉冲,屏蔽效能,建筑材料,磁场信号
英文关键词:  lightning  electromagnetic pulse  shielding effects  building material  magnetic field signal
     
作者中文名作者英文名单位
殷启元Yin Qiyuan广东省气象公共安全技术支持中心
武宁Wu Ning阳江市气象局
引用:殷启元,武宁.2017,不同材料建筑物的雷电电磁脉冲屏蔽效能对比试验[J].气象与减灾研究,40(4):325-330
中文摘要:
      为验证不同材料建(构)筑物对雷电电磁脉冲的屏蔽效能,分别架设栅格、全金属、钢混和砖混4种不同材料屏蔽体进行野外雷电试验。基于2014年8月29日17:44具有10次地闪过程的试验数据,对比分析了其中第9次地闪回击过程中4种不同屏蔽体内的磁场信号。结果表明:全金属材料屏蔽体内部磁场为高频振荡波形,砖混材料体内磁场波形特征与经典磁场类似,而栅格和钢筋混泥土材料体内的磁场波形介于两者之间;全金属材料屏蔽体的屏蔽效能最好,栅格和钢筋混泥土材料的屏蔽效能次之,砖混材料的屏蔽效能最差。
Abstract:
      In order to verify the lightning electromagnetic pulse shielding effects of different building materials, four kinds of different material shields were selected for field tests, which included grid material, metal material, ferroconcrete and brick concrete. Based on the experiment data of 10 return strokes happened at 17:44 BT 29 August 2014, the magnetic field signals of the four different material shields in 9th return stroke were contrastive analyzed. The results showed that the internal magnetic field of metal materials shield presented high frequency oscillating wave, the characteristic of magnetic field in the brick concrete was similar to the classical magnetic field, and the magnetic field waveform of the grid material and ferroconcrete was in between. The shielding effect of metal material was the best, the grid material and ferroconcrete came second, and the brick concrete was the poorest.
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