摘要
针对国内外强电磁脉冲耦合效应分析现状及问题,阐述了电磁软杀伤概念,提出了基于共享存储OpenMP标准与消息传递MPI的时域有限差分-通用电路仿真程序FDTD-SPICE并行同步算法,建立了在电磁脉冲激励作用下的动态耦合模型,解决了飞机电磁软杀伤动态评估的难题;以某军机为例,开展了电磁武器的座舱耦合分布电磁场和FDTD-SPICE等效电路的并行同步仿真试验与防护评估分析。试验结果表明,该算法并行同步效果良好,军机在通电状态下,军机在通电状态下,幅度最值大大高于不通电条件下的幅度最值,易损性增强,防护效果减弱;防护座舱能大大减轻电磁武器对机载电路的影响。
According to instances and problems of research for coupling effect of electromagnetic wave,a concept on electromagnetic soft kill is set forth.A FDTD-SPICE parallel and synchronous algorithm based on OpenMP and MPI is brought out,by which a dynamic coupling effect model under attack of electromagnetic weapon is constructed to solve the puzzle of dynamic evaluation on electromagnetic soft kill to aircraft.The dynamic evaluation analysis and test is carried out on circuit in aircraft model with a scale of 1:1.The simulation tests show that the algorithm has good parallel and synchronous effect,the maximum E-field strength in electrified aircraft is much more than that in nonelectrified aircraft,and high frequency electromagnetic weapon has less influence on airborne circuit due to protective cockpit structure.
出处
《计算机与数字工程》
2010年第12期19-23,176,共6页
Computer & Digital Engineering
