以五角形波导为例，比较了常数边界元法和线性边界元法两者各自的优势。
Taking the pentagon waveguide for example, LBEM has been compared with CBEM to obtain the advantage and difference.
计算结果表明：线性边界元法具有计算精度高，所需节点少，占内存小，计算时间短的优点。
It has been shown that LBEM has the advantage of higher accuracy, fewer nodes, smaller memory and shorter time.
线性边界元法（LBEM）是在常数边界元法（CBEM）的基础上，从线性插值函数出发将边界单元按线性分布来进行处理的一种数值方法。
The linear boundary element method (LBEM) is based on the constant boundary element method (CBEM), it makes boundary element into linear segment from linear interpolating function.
一般情况下，边界元法所建立的线性方程组系数矩阵为一满置矩阵。
In general situation, the coefficient matrix of linear equations deduced by the Boundary Element Method (BEM) is a compact one.
采用线性单元的二维弹性问题边界元法具有计算精度高的优点。
The Boundary element Method (BEM) with linear elements has an advantage in high precision of calculation.
本文提出用摄动边界元法对材料非线性问题进行应力、应变分析。
In this paper a perturbation boundary element method is proposed to analyse stress and strain for the problems with nonlinear materials.
本文在有限元法的前处理工作基础上，提出了回转体非线性边界元自动前处理的改进插值法。
This paper proposes an modified continuous transfinite interpolation method for automatic grid generation of axisymmetric BEM in terms of previous automatic mesh generation work in FEM.
另一种是非线性方法，研究流体非线性晃动对渡槽影响，如边界元法、ALE型有限元法等。
The other are the nonlinear method, which studies on the effect of liquid nonlinear sway to aqueduct, such as boundary element method, ALE finite element method etc.
边界元法在考虑体积力时要产生积分自由项，这将使边界积分成为非线性积分，从而引起实施时的困难。
When considering body-force, free item will be arised in the equation of the boundary element method, causing boundary integration to be changed into nonlinear-integration.
边界元法在考虑体积力时要产生积分自由项，这将使边界积分成为非线性积分，从而引起实施时的困难。
When considering body-force, free item will be arised in the equation of the boundary element method, causing boundary integration to be changed into nonlinear-integration.
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