基于CST的电磁脉冲效应分析仿真实验研究

Research on Simulation Experiment of Electromagnetic Pulse Effect Analysis Based on CST

为减小复杂多变的电磁环境对车辆的影响,利用三维电磁场仿真软件CST(Computer Simulation Technology)在车辆发动机舱建立线缆模型,研究不同因素对车辆电磁耦合效应的影响。通过仿真得到线缆长度、线缆距车底高度、线缆相对距离、线缆终端电阻、导体半径、绝缘层厚度等参数变化下,线缆感应电压和感应电流的峰值绘制关系曲线。这些结论可以为车辆线束设计提供理论指导,并为电磁防护设计中对于线缆导体半径选择、线缆相对距离、离地高度、线缆长度等提供依据。

To reduce the influence of complex and changeable electromagnetic environment on vehicles,the cable model is built in the engine compartment by using the three-dimensional electromagnetic field simulation software CST(Computer Simulation Technology) to study the influence of different factors on the electromagnetic coupling effect of vehicles.Through simulation,the peak relationship curves between induced voltage and induced current in the cable are drawn when the parameters such as cable length,cable height from the bottom of the car,cable relative distance,cable terminal resistance,conductor radius,and insulation layer thickness change.These conclusions can provide theoretical guidance for the design of vehicle wire harnesses,and provide a basis for the conductor radius selection,cable relative distance,height from the ground,and cable length in electromagnetic protection design.