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The model is applied to numerically calculate the dynamic bending strength of concrete trisection beams subjected to impact load with the strain-rate effects of the meso-structure taken into account.

本文在随机骨料模型的基础上，提出了既能反映混凝土骨料分布随机性又能反映混凝土细观各相材料力学特性随机性的随机骨料随机参数模型。

By the damage evolving relation proposed the flexural process of the trisection specimens of wet-sieved and fully-graded concrete was numerically simulation.

根据本文提出的损伤模型和损伤参量演化关系，分别对湿筛混凝土和全级配混凝土试件进行了三分点加载数值模拟。

With the method, the damage process of a steel truss bridge is numerically stimulated.

最后，用一实际钢桁梁桥的损伤识别进行了数值模拟，计算结果证明了该方法的准确性和有效性。

Three dimensional two phase flow in horizontal heated tube bundles has been investigated experimentally and simulated numerically.

针对卧式火管式蒸汽发生器的结构特点，对水平加热管束间的三维汽液两相流特性进行了实验研究。

The dimensional accuracy of solidification processes was numerically simulated using the nonlinear FEM with the RP prototype dimensions optimized by dynamic information feedback.The process and mechanism of the unbaked ceramic casting mod process were introduced in detail.

该系统采用非线性有限元对凝固过程中铸件的尺寸精度进行数值模拟，通过动态信息反馈优化原型尺寸，详细介绍了无焙烧陶瓷型精密铸造技术的工艺及机理。

Therefore, we have developed a numerically effective algorithm based on periodic unit cell method proposed by Bohbot-Raviv and Wang.

所以有必要发展新的高效的SCMFT新方法来预测和确定嵌段共聚物微相分离的形态结构。

For the first patern, elastic dynamics is adopted to study the steady state rolling contact, elastic dynamics incorporating with rigid dynamics is adopted to study the non-steady state. For the steady state, the analytical solution is obtained, and for the non-steady state, the variational formulation to solve the problem numerically is derived For the later patern, the function type friction coefficient is introduced. On the basis of the quasi-stastic theories of constant friction coefficients, both the exact theory and the simplified theory of the function type friction coefficient are established, the computer programms for both the theories are also made out. Using the function type friction coefficient, Shen-Hedrick-Elkins theory's application range is extended to large creepage .

对于速度对接触体力学特性的影响，本文采用弹性动力学方法和弹性动力学与刚体动力学相结合的方法分别对稳态和非稳态两种情况进行了研究，得到了稳态情况的解析解，给出了对非稳态情况进行数值求解的变分公式；对于速度对相关物理量的影响，本文主要讨论了速度对摩擦系数的影响，在滚动接触准静态理论的基础上引进了函数型摩擦系数，建立了函数型摩擦系数的滚动接触准静态精确理论和简化理论，并分别编制了相关的计算程序，还用函数型摩擦系数将简便的Shen-Hedrick-Elkins理论的适用范围扩展到大蠕滑区。

Thus this paper first introduces a general approach to continuous element methods for one-dimensional structures,in which the continuous element methods is computed numerically and directly from the transfer matrix from the state vector equation of motion of a structure.

因此，介绍一维结构的连续单元法的一般方法：由结构运动方程建立状态向量方程和利用单元传递矩阵得到单元的刚度矩阵。

An interpolation method to simulate fluid field numerically is advanced inthe light of general wavelet sampling theory. A number of properties areidentified: easy design, fast speed, high precision, no numerical viscid and wideapplication.

利用一般的小波采样定理，给出一个流场的数值模拟插值方法，该方法最大优点是设计思想简单，速度快，精度高，没有数值粘性，适用范围广。

Subsonic vortical flows over a slender body at different angles of attack were simulated numerically,and the aerodynamic characteristics of asymmetric vortical flow were also investigated.

运用数值方法模拟了细长体在不同攻角条件下亚音速绕流的背涡结构，探讨了非对称涡流的气动力特性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。