数值计算

Based on the working results gained by predecessors, an infinitely boundary element construction is proposed in the paper, with consideration taken of the influence upon the infinite far place, without increasing a large number of elements.

本文在前人工作的基础上构造无限边界单元，可以在不增加大量单元的基础上考虑无限远处的影响，这样能更好地模拟实际问题，为数值计算带来方便和有效的数值结果。

In this dissertation, based on the discussed history of numerical method of structure-born sound radiation, the boundary element integral equation is deduced, and then the numerical method of sound radiation, the theory of radiation modal and the sound radiation sensitivity analysis is discussed in details.

本文在分析了结构声辐射数值方法的历史及其现状的基础上，详细推导了结构声辐射的边界积分方程，对声辐射的数值计算方法、声辐射的模态理论以及声辐射的灵敏度分析作了深入详细的探讨。

One method is the singularity transferring method for calculating integral value containing O(1/R) singularity in its integrand［1］.The other singularity is removed first and the integral contribution of this small area is proved to be zero.

另一种方法是为解决O(1/R2)高阶奇异积分的数值计算问题的，它是通过排除一包含奇点的有限小块，而这一小块区域对积分的贡献为零，从而使积分方程在整个积分域变得数值可积。

Discontinuous deformation analysis method is a newly developed numerical method that can be used to perform deformation analysis of jointed rock mass.

非连续变形分析方法是近年来发展起来用于分析裂隙岩体的一种较好的数值计算，其以新颖的思想、先进的数值技术，得到了学术界的认可和广泛关注。

Mathieu function is the base of field theory analysis in elliptical cylinder coordinate system. So, firstly, detail investigation has been given about the problem of numerical analysis of Matheiu functions, based on the predecessor's contribution, an improved faster algorithm of numerical analysis and confirmation algorithm of Matheiu functions has been presented.

Mathieu函数是椭圆柱坐标系统下场论分析的基础，因此本文首先对Mathieu函数的数值计算问题进行了详细研究，并在前人基础上完善并进一步改进了目前被认为较为可行的数值算法，并提出了验证算法。

The numerical calculation of integration is an important branch of numerical analysis.

积分的数值计算是数值分析的一个重要分支。

The principle of this method is simple and easy to program and accuracy and numerical stability are characterized.

数值算例表明，本文所提出的方法具有原理简单，易于程序实现和数值计算精度高的优点。

With the development of the numerical value method, the simulation technology of numerical value analysis is applied widely and improved.

数值计算方法的迅速发展使得数值模拟技术得到广泛的应用和提高。

Such a chaotic attractor was obtained on the phase plane by numerical calculation.

运用数值计算的方法在相平面中得到系统的混沌吸引子，而后对这个混沌吸引子进行数值研究，发现它具有两方面的特征：①它是不连续边界象集的归宿；②具有分数维。

Thus the distribution of surface field and near field can be obtained..Numerical results for sphere and prolate spheroid are in excellent agreement with thos...

本文给出的球体及长椭球体的数值计算结果表明，这种方法可获得与本征函数级数解相当吻合的结果，优于OSRC方法的结果，说明这种方法可能成为一种对现有解析或数值方法的有效替代方法。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。