摘要
阐述了多根导线电容矩阵的边界元数值方法,分析了开阔边界和单元离散尺寸对计算精度的影响。结果表明,为保证计算精度,导线的边界单元需离散得足够精细,开阔边界应为模型尺寸的50倍以上。并通过有限元软件仿真对计算结果进行了验证。
The boundary element method （BEM） was described for calculating the capacitance matrix of multi-strand wires, and the influences of open boundary and discretized elements size on computational accuracy were analyzed. The computed results show that the elements on wires boundary should be discretized fine enough to ensure computational accuracy, and the open boundary should be more than 50 times the model size. The calculated results were verified by simulation using finite element method （FEM） software.
关键词
多根导线
电容矩阵
边界元法
开阔边界
单元离散
multi-strand wires
capacitance matrix
boundary element method
open boundary
element discretization
