数值方法

To review the numerical methods of the multibody systems dynamics and applications of the symplectic methods

多体系统动力学方程数值方法的发展历程及探讨辛算法的应用

Poincaré inequalities play an important role in the research of many fields such as in harmonic analysis and in theory and numerical method of differential equations.

Poincar 不等式在调和分析、微分方程理论及其数值方法等领域的研究中具有极其重要的作用。

A numerical method is used to obtain the solutions of the mathematical model of the human thermoregulation system,and human temperature distribution and dynamic change during simultaneous exposure to heat and vibration are calculated.

采用数值方法对人体热调节系统数学模型进行求解，计算了不同热和振动复合环境条件下人体温度分布及动态响应，计算结果与实验结果相符较好，相对误差小于5％。

Based on the enumeration of the significant fatigue failure modes of structure system and one-sided tolerance factor, an algorithm for predicting fatigue life of complex structure system is presented.

借助单侧容限系数法和对数准则，提出了一种预测大型复杂结构系统安全疲劳寿命的数值方法。

After introducing the line tension contribution to the total Helfrich curvature energy, the axisymmetrical shape equation and the corresponding boundary conditions are obtained in the case of vesicle with one hole.

在得到关于开口泡的形状方程与相应的边界条件之后，本文进一步用数值方法求解了该微分方程。

The transformation of coordinates,interactive model,and numerical methods were introduced for the dynamic analyses of deep groove ball bearings.

根据空间坐标变换建立接触和碰撞模型，利用数值方法计算分析，编写了适用于深沟球轴承的拟静力学以及动力学分析的软件包BA。

In the process of time march, the evolution of the wave contour maps for unsteady state is totally difference with the steady state.

通过对定常和非定常两种数值方法的收敛过程的比较发现两者波面的变化过程完全不同。

Vector algebra in 3D, vector- valued functions, gradient, divergence and curl, Taylor series, numerical methods and applications.

三维向量代数、向量值函数、梯度、散度和旋度、泰勒级数、数值方法和应用。

All these show that the present method can be used to analyze the complex viscous flow phenomena in turbomachines.

计算结果表明，本数值方法和程序计算稳定，收敛速度快，计算结果与实验值基本一致，可以用来模拟叶轮机械内的粘性流动现象。

A numerical method based on chimera technique has been developed to simulate the viscous flow past a helicopter r...

本文发展了一种基于嵌套网格的计算绕直升机旋翼粘性流动的数值方法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。