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中文摘要：
为了有效评估低频电磁环境下高速动车组（EMUs）车厢内电磁暴露的安全性,利用基于有限元的多物理场仿真软件COMSOL5.1,构建了动力电缆对动车车厢内乘客的电磁暴露模型,研究了处于车厢内不同位置乘客的头部磁感应强度、感应电场强度和感应电流密度的分布。研究结果表明：位于车窗处的B乘客的人体头部磁感应强度、感应电场强度、感应电流密度最大,最大值分别为13.701μT、208.85μV/m、125.366μA/m2;位于1组动力电缆上方的C乘客的人体头部磁感应强度、感应电场强度、感应电流密度最小,最小值分别为0.59μT、8.806μV/m、5.225μA/m2;位于2组动力电缆之间的A乘客的人体头部磁感应强度、感应电场强度、感应电流密度的值在B乘客和C乘客之间。所有计算结果均小于国际非电离辐射防护委员会（ICNIRP）制定的公众电磁暴露推荐值,这说明位于动车车厢底部的动力电缆对乘客的电磁暴露不会构成健康威胁。
英文摘要：
In order to effectively evaluate the safety of electromagnetic exposure in the cabin of high-speed electric multiple units（EMUs） in low frequency electromagnetic environment. The finite element method software COMSOL5.1 was employed to model the power supply cables. The distribution of the magnetic induced strength, induced electric field strength and induced current density in passenger＇s head at different position have been investigated. The results showed that passenger B staying by the window had the maximum magnetic induced strength, induced electric field strength and induced current density in head tissue, with values 13.701 μT, 208.85 μV/m and 125.366 μA/m2 respectively; passenger C sitting over the cable had the minimum magnetic induced strength, induced electric field and induced current density in head tissue, with values 0.59 μT, 8.806 μV/m and 5.225 μA/m2 respectively; for passenger A staying between two sets of power cables, the value of magnetic induced strength, induced electric field strength and induced current density were higher than those of passage C, but lower than those of passage B. All these data were far below the recommended values of public electromagnetic exposure by the International Commission on Non-ionizing Radiation Protection（ICNIRP）, which indicates the electromagnetic exposure caused by power cables will not threat passengers＇ health.
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