本文说明了在用有限元模式对机械结构的幅射换热问题进行求解时，必须计算形状因子矩阵。
It has been shown in this paper, that in solving radiation heat transfer problems for finite element model of mechanical construction it is necessary to compute the shape factor matrix.
在构造预条件因子时，采用从目标的“几何结构剖分”出发，而不是从“矩阵元素”出发确定“基权函数之间的作用量关系”，这样保证了构造预条件矩阵的计算复杂度仅为O（N）。
The preconditioner is generated from the target's "geometry structure " and not from the "matrix element", which assured the computational complexity for generating the preconditioner is only O(N) .
采用传递矩阵法推导了结构中相邻单胞间的传递矩阵，给出了结构中波动局部化因子的表达式，并给出了数值算例，分析了压电材料各参数对局部化因子的影响。
The expression of localization factor is given by Wolf algorithm, numerical examples are presented and the effects of various parameters of piezoelectric material on localization factor are analyzed.
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