计算

The paper is based on the rupture-dynamical theory and DNV RP-F101 recommendatory method, through the study of three corrosion models, we have built up rational estimation model, adopted subentry safety coefficient method and allowed stress method to estimate the remaining strength of corrodent pipelines, and finally, introduced the Genetic Algorithms method to compute the reliability of corrodent pipelines, gaining the reliability index, and provided corresponding program.

本文以断裂力学理论为基础，以 DNV RP-F101 腐蚀管道评估的推荐作法为蓝本，通过对管道腐蚀损伤的三种腐蚀形式具体研究，建立了合理的评估计算模型，采用了分项安全系数法和许用应力法对腐蚀管道的剩余强度进行了失效压力的计算，最后较详细的介绍了遗传算法的基本理论，并把它应用到对腐蚀管道的进行可靠性评估中，得出其可靠性指标，并给出了相应的计算程序。

The handworker counting consists of several aspects, included preliminary selection of member size, counting model of frame, loads counting, lateral displacement counting of transverse frame, internal force analysis of horizontal loads and vertical loads, internal force combinations, design of section, check design of the foundation.

其中手算部分计算书的主要内容为构件尺寸的初步确定、框架的计算简图、荷载横向侧移计算、框架在水平及坚向荷载作用的内力分析和计算、内力组合、截面设计及基础设计。

The new calculation method would replace the traditional calculation method for the precise calculation of crankshaft strength.

新的计算方法将取代传统的计算方法用于曲轴强度的精确计算。

It shows that this calculation method has higher creditability and computational accuracy.

实验测试和计算结果较一致，说明采用的计算方法具有较好的可信性及较高的计算精度。

Nevertheless, this method generally have the following defects, with poor accuracy in calculating (1) bubble point density;(2) high density liquid region; and (3) critical region etc.

这种方法虽然简单，但有着难以克服的缺陷，不能解决：（1）泡点密度的计算问题（2）高密度液相区的计算（3）临界区的计算等。

Using the theory of radiative capture reaction and combining our department experiment, we investigate two nuclear reactions,〓 and 〓, and calculate the cross sections and astrophysical reaction rate of them.

我们对ANC系数的近似模型无关性给出了一个数学形式理论证明，并结合具体的核反应，利用数值计算验证了ANC系数的近似模型无关性；在E1跃迁情况下，我们给出了一个用ANC系数计算辐射俘获反应截面的计算公式。

Using this method, the crystallography calculation about the matrensite transformation in the Fe-31Ni alloy has been finished.

并对Fe-31Ni合金的马氏体相变晶体学进行了计算，计算结果与传统理论计算的结果完全一致。

The first chapter the content examines including the orbital intensity calculated that reserves the axle seam the computation, in the curve reduces axle's arrangement, the axle festival general arrangement plan, the railroad ballast amount used computation, designs the road section and the station yard cubic meter of earth and stone quantity calculates as well as mixes, railroad cubic meter of earth and stone and orbital project construction organization and budget.

第一章内容包括轨道强度检算，预留轨缝的计算，曲线上缩短轨的布置，轨节布置图的绘制，铁路道碴用量的计算，设计路段和站场的土石方量计算以及调配，铁路土石方和轨道工程的施工组织及预算。

In this paper, a modified multi-zone coupling method is presented for simulating the integrated flowfield of annual combustors, the SIMPLE-ENC algorithm is presented to achieve higher accuracy, and the wall function method in arbitrary curvilinear coordinates for treating near wall region is given here.

针对燃烧室多连通域的特点，本文采用分区法生成网格，并且提出了一种即时传递信息的改进多区域耦合法求解燃烧室整体流场，该法已成功地应用于涡扇和涡轴发动机环形燃烧室整体流场计算；本文提出了计算流场的SIMPLE-ENC算法，显著提高了流场计算的收敛速度；本文详细描述了壁面函数在空间任意曲壁上的应用方法。

A simplified method was proposed to deal with the boundary condition at the turbine unit for transient calculation. This method is based on the statistical analysis of turbine hill chart and the Eular equation for water turbines. According to the Eular equation, the basic geometry parameters of the turbine, such as guide vane opening a, blade outlet angle β2, the relative blade width of outletb2, the relative height of wicket gateb0 and the relative turbine exit radiusr2 are obtained through curvilinear regression of the water turbine hill charts.

为解决目前水轮机过渡过程计算中确定水轮机边界条件时通常使用的外特性法和内特性法的不足之处，结合这2种方法的优点，提出一种在水轮机过渡过程计算中处理水轮机边界条件的方法，即根据综合特性曲线的数据，利用统计分析方法和水轮机基本理论公式，计算水轮机基于内特性解析方程的基本参教，如出流角α、转轮出口安放角β、转轮出口相对宽度b2、导叶相对高度b0、转轮出口相对半径r2，在特性曲线上的规律。

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。