Tt is suggested in this paper that the calculation of the gravitational anomaly is performed by boundary elements method, curvilinear integral is for 2-D object and surface integral for 3-D object.
本文提出用边界单元法计算重力异常，二维形体用线积分，三维形体用表面积分。
In numerical calculation, the paper employs the collocation method to compute the coupled boundary integral equations with quadrangle constant elements.
数值计算采用配置法计算耦合的边界积分方程，使用四边形常单元。
The three-dimensional boundary element method for elastic materials was extended to develop a fast multipole expansion formulation of the fundamental solutions for quadratic elements.
在三维弹性力学边界元法的基础上，推导出二阶单元的基本解快速多极展开格式。
Meridional flow problems in radial flow turbo-machinery are solved by using the method of boundary elements.
采用边界元法求解径流式叶轮机械子午流动问题。
In this paper, the boundary element method for calculating surface crack is studied and suitable location or the singular isoparametric elements, is presented.
本文研究了计算半随圆表面裂纹应力强度因子的边界元方法。
The Boundary element Method (BEM) with linear elements has an advantage in high precision of calculation.
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 method has the advantages of being simple in dividing elements, less in inputting data and convenient in dealing with various boundary conditions and calculating internal forces of piles.
本文方法具有单元划分简单，输入数据少，可以方便地处理不同约束条件和计算桩截面内力等优点。
The method deals with texture and boundary in different ways, and thus dramatically reduces non-meaningful distractor elements, while selectively retains region boundaries and isolated structures.
这个方法对纹理与边界采取不同的处理方式，从而很大程度地减少了背景中无意义的干扰成分，并有选择性地保存了孤立的轮廓和区域的边界。
Some examples are computed, and the results imply that the method presented in this paper can save lots of boundary elements and have a high accuracy at the same time.
实例计算表明了无穷边界单元具有节省单元和精度高的优点。
Some examples are computed, and the results imply that the method presented in this paper can save lots of boundary elements and have a high accuracy at the same time.
实例计算表明了无穷边界单元具有节省单元和精度高的优点。
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