有限元法

The nitriding process of a large-scale crank shaft made from 35CrMo steel is simulated using non-linear FEM for the different supporting situations based on the above-stated visco-elastic mathematical model and measured data.

由于大型曲轴形状非常复杂，本文针对四种不同的支撑方式，用三维非线性有限元法结合上述粘弹性数学模型和实测数据模拟计算了35CrMo大型曲轴气体渗氮过程变形情况。

Chapter 1 presented the histories of airship and nonlinear finite element method.

文中第一章总结回顾了飞艇研究历史及非线性有限元法的发展过程。

The three-dimension alternative electromagnetic field of square billet soft-contact mold was simulated by using the Galerkin finite element method.

摘 要：运用Galerkin有限元法对方坯软接触结晶器内三维交变磁场进行了数值模拟。

And the analytical method of sensitivity analysis based on FEM is discussed.

并研究了基于有限元法的灵敏度分析解析算法。

The computational mesh,is generated automatically in terms of analytical/numerical transformation.

由于有限元法在处理复杂边界时的灵活性，近年来正迅速发展成为求解跨音速流场的强有力工具。

The production performance of fractured wells is simulated with the Finite Element Method and the anchor rod model.

应用有限元法和锚杆模型对人工裂缝井的生产动态进行模拟。

Mechanics method can only solve simple engineering problems,so this paper analyses the two common structure of the sealing of tail shaft through finite element method.

针对经典力学法只能求解较为简单的工程问题的缺陷，通过有限元法对舰船艉轴的两种常用密封形式进行了动力学分析，将计算结果通过数值方法加以整合，并从中找到与实际运行过程相符的计算结果进行分析，直观地展现了两种密封结构的优缺点。

This paper analyses three-dimensional stress distributions of the stud anchor chain by the theory of finite element and boundary element.

本文应用三维边界元法和三维有限元法对有挡锚链进行了三维应力分析，并将其结果与电测实验数据作了比较，吻合得很好。

The numerical model of non-linear wave in harbor, including the non-coupled and non-linear wave numerical model, the numerical model combined Boussinesq equations with Laplace equation and the coupled numerical model combined Boussinesq equations with Euler's equations, are studied.The studies on non-coupled and non-linear wave numerical model are following.

本文分别以Boussinesq方程，二维和三维Laplace方程，欧拉方程和牛顿第二定律作为基本控制方程，分别从非耦合非线性波浪计算模型(指单独采用一个计算模型：本文指Boussinesq方程，或边界元法解Laplace方程，或有限元法解Laplace方程)、Boussinesq方程与Laplace方程耦合计算模型、Boussinesq方程与欧拉方程耦合计算模型三个方面对港口非线性波浪计算模型展开了研究。

In this thesis, the proposed technique is also applied, for the first time, to twodimensional Finite Element Method of Lines and similar conclusions have been made.

全文主要工作如下：一、以一维C〓问题为模型问题，提出有限元法后处理超收敛计算的EEP法。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。