FDTD Analysis of Transient Potential Rise on the Steel Structure under Direct Lightning Stroke

摘要：

High transient potential rise could appear everywhere on the LPS when suffering direct lightning stroke, which could cause serious damages to people and equipment in the structure.In this paper, FDTD method is adopted to simulate the discharge process of lightning current in two different situations: stroke on the roof corner and stroke on the roof center.Subsequently, the waveform and the distribution feature of the potential rise on the steel structure are obtained.Furthermore, the influences of the change of the structure on the potential distribution are analyzed.The results show that densified grid on the roof can make the potential distribution on each floor more even which could reduce damages caused by lightning back flashover.

关键词： finite-difference time-domain lightning back flashover transient potential rise steel structure

作者: Jiaqing Chen Wang Pan Yingqiang Wang Wenchun liao

作者单位: National Key Laboratory onElectromagneticEnvironmental Effects andElectro-optical EngineeringPLA Uni Baicheng Ordnance TestCenterBaicheng,China National Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering PLA

会议类型: 国际会议

会议名称: 第七届亚太防雷国际会议

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2011-11-01（万方平台首次上网日期，不代表论文的发表时间）