结构单元

With the development of computer technology and numerical modeling techniques, many numerical methods have been established and applied to this field. Finite element method is one of the most effective.

随着计算机科学和数值计算方法的发展，目前已经有很多数值方法应用于大体积混凝土结构温度应力仿真分析中，其中有限单元法是一种十分有效的数值分析方法。

The geometry transformation of wing was conducted by means of shape function born of finite element method.

本文引入了等参单元形函数的几何变换思想，利用径向基函数，解决了复杂形状机翼的二维气动代理模型的构造问题，进行了某巡航导弹弹翼考虑结构变形的气动力代理模型的构建。

Owing to partition dense finite elements by classically FEM to simulate heterogeneous materials,it decreases the computational efficiency.

颗粒增强复合材料的增强相一般为不规则的多边形，采用多边形单元进行有限元分析，可更准确模拟材料的真实微观结构[1-2]。

The unit in which data is physically stored and protected against errors on a fixed block architecture disk.

固定块结构磁盘上数据存储和出错保护的基本单元。

The modeling and analysis method, as well as the conclusions are helpful to the design, fabrication and application of FMAV. Based on the real structure of the forewing and hindwing of dragonfly, the plane geometric models of biomimetic wings are created using some CAD software.

本文基于蜻蜓真实的翅翼样本，利用相应CAD软件分别建立了前、后翅翼的几何结构模型，并通过选择适当的单元类型及设定特性参数，完成三维仿蜻蜓前、后翅翼的有限元建模。

In the paper, the continuous structure optimization design based on element free Galerkin method is discussed firstly.

本论文首先探讨了基于无单元Galerkin法的连续体结构优化设计。

This paper analysis the elliptic curves operation rules,presents a high speed serial-parallel elliptic curve multiplier for the Galois field GF(2^N) which based on optimal normal basis, compares the ECC chip speed and hardware resource consuming induced by the different Field partition.

本文分析了GF(2^N)域上的椭圆曲线的运算法则，提出了一种串－并行结构的基于优化正规基的高速有限域运算单元，比较了域划分D对芯片实现速度和硬件资源占用的影响，完成了域GF(2^N)上基于ONB的ECC芯片快速实现。

57 Unit 11 What do you think of game shows?

一、 教学目标 1、知识目标：学习本单元的词汇和句型结构

A third order ENO finite volume method for hyperbolic conservation laws on unstructured triangular mesh is introduced.In order to obtain the third order accuracy on spatial discretization,a weighted quadratic interpolation is constructed on every triangular mesh.Two point Gauss quadrature formula is also used on each edge of every triangular mesh and the third order TVD Runge-Kutta method is used for time discretization.The numerical order of convergence and the numerical result of a mesh 3 wind tunnel with one step are given.

摘 要 基于双曲型守恒律方程，对非结构三角形网格给出了一种ENO(Essentially Nonoscillatory Scheme)型有限体积格式，方法的主要思想是先对每一个三角形单元构造一个加权的二次插值多项式，而在计算交界面的流通量时采用了两点高斯积分公式以保证格式的整体精度，时间离散采用三阶TVD Runge-Kutta方法。

Moreover the convergence the effectiveness of Gauss numerical integral method isdiscussed and the selection of number of integration point is suggested.

另外，采用高斯积分法形成单元刚度矩阵的分析程序也可用于构件截面形状不规则或变截面构件组成的空间杆系结构的弹性分析。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。