查询词典 fem.

As an application, we present the coupling of FEM and natural boundary element.

作为应用，我们也研究了无限扇形区域的有限元与自然边界元耦合法。

To couple the method with FEM,discrete nodal line is introduced,and applied toSDTFM.With a similar process as SNDTFM,we can deduce a refined SNDTFM.

为适应复杂区域问题的求解，本文提出了离散结线的概念，将其应用到条形数值分布传递函数方法中，实现了与有限元方法的分区耦合。

The modeling theories on dynamics of flexible multibody system are reviewed.In chapter 2, the geometric nonlinear relationship between strain and displacement is utilized in describing the nonlinear displacement field. The FEM discrete model of the arbitrary flexible beam in non-inertial frame is derived by the Kane's method.

第二章从几何非线性应变-位移关系描述非线性变形场，使用有限元方法离散三维任意截面柔性梁，用Kane方法对离散的模型建立动力学方程，并通过算例验证了算法的正确性和可行性。

First, FEM with nonhomogeneous elements is used to analyze the fracture problem of two dimensional FGM strips with inner cracks or edge cracks in the plane strain condition. The influences of geometric parameters, material graded modality and nonhomogeneity constant of the structure on the stress intensity factors at crack tips are investigated.

首先，本文采用该方法研究了平面应变状态下，含有内部裂纹和边裂纹的二维功能梯度条的断裂问题，分析了结构的几何参数、材料梯度形式和梯度参数对裂纹尖端应力强度因子的影响。

And then, according the FEM numerical simulation result, the coefficient value of the modified model is made sure. Moreover, the transform characteristic of section is analyzed, the dynamic change process of rolling-force, stress and strain is reappeared and the variety regulation is analyzed. Through the contrast the variety regulation between the simulation and the spot-line measurement, the conclusion that the datum are matched basically is obtained.

并且，分析了连轧无缝钢管截面的变形特点及轧制力和应力应变的变化规律，重现了轧制力和应力应变的动态变化过程，对比了有限元数值模拟的轧制力与现场实测的轧制力，得到了两者的变化规律基本相符的结论，证实了显式动力学有限元法作为连轧无缝钢管的研究方法的可行性。

As an effective method of numerical computation, FEM is widely applied in numerical simulation of metal deformation process.

有限元法作为一种有效的数值计算方法已经被广泛应用于金属成形过程的数值模拟方面，但是有限元分析软件在使用过程中也存在许多问题，例如数值模拟解的精度问题，直接优化设计技术参数的问题。

In this paper, using FEM method to numerical simulate the elastic wave equation.

本文采用有限元法进行弹性波方程数值模拟。

The principles of FEM, finite difference method , numerical mode method and integral equation method are elaborately described.

详细阐述了非均匀介质问题中常用的有限元法、有限差分法、数值模式匹配法和积分方程方法的基本原理和各自的优缺点。

The stability and convergence of the fully discrete solutions are proved and the convergence order is also given.

从数值实验上也验证了该算法的可行性和高效性，对非定常N-S方程提出了一种新的全离散TGM：空间离散用标准FEM，时间离散用Crank-Nicolson格式，证明了全离散解的稳定性与收敛性。给出了收敛阶。

In this paper, the FEM is used to analyze some factors which affects PCM performances and orthotropy.

本文应用有限元方法，分析了影响压电复合材料综合性能及其正交异性的各种因素和规律。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。