查询词典 numerical analysis

Chapter 4 is contributed to the numerical analysis on Y-shaped structures. The contents of this chapter include the transport properties of the Y-shaped quantum switches and the forming conditions for switching.

第四章集中对Y型量子结构进行了数值模拟工作，研究内容包括Y型量子开关的电子输运性质和Y型量子开关的形成条件。

Through above numerical analysis of the TiN coating/substrate system, some typical rules about the fatigue failure are found:(1) the fatigue damage of a coating/substrate system appears first on the interface, then expands along the interface and to the substrate, and finally causes the coatings broken and spalled;(2) under the cyclic loadings of tangential sliding and radial extrusion, the equivalent plastic damage on the interface is mainly generated by the shear stress and the accumulated plastic contributed by the increments of shear stress. Thus the change of the shear stress is the main factor for the contact fatigue damages of coating/substrate system;(3) the frictional coefficient, external loading and coating thickness have some influence on the carrying capacity and contact fatigue life for a coating/substrate system.

通过对TiN涂层／基体系统的数值模拟分析，得到了涂层／基体系统疲劳失效的一些典型规律：(1)、涂层基体的初始损伤首先出现在交界面处，然后沿界面并向基体中扩展，最后导致涂层断裂而发生剥落失效；(2)、在切向滑动和径向挤压循环载荷作用下，交界面处的塑性损伤主要是由剪应力τ产生，塑性累积也是由于△τ的变化引起，说明循环过程中剪应力变化是影响涂层接触疲劳破坏的主要因素；(3)、材料摩擦系数、外界载荷大小以及涂层厚度都对涂层／基体系统的承载能力以及疲劳寿命都有一定影响。

The rheologic model of soft rock has been discussed, the expansion and rheologic behavior for soft rock has been studied, based on the combination of experiment and numerical analysis.

本文讨论分析了软岩流变模型，通过实验与数值分析相结合，对软岩的膨胀特性及蠕变特性进行了研究，探讨了软岩的膨胀机制，建立了软岩的蠕变模型。

An art of numerical analysis is to find a stable algorithm for solving a well-posed mathematical problem.

一种艺术的数值分析是找到一种稳定算法求解良好的数学问题提出的。

The research in this field mainly focuses on three respects: the application in engineering, numerical analysis and the well-posed property of the given problem.

自由边界问题是偏微分方程研究领域中的一个主要研究方向，有着非常广泛的实际背景，如在流体力学、化学反应过程、金融数学以及物理中的相变问题等研究领域就存在大量的自由边界问题。

Based on long-term monitoring convergence deformation of Wuqiaoling deep-buried long tunnel, this paper analyzes convergence deformation regularity of two parallel main tunnels. Results show the left main tunnel's convergence obviously exceeds that of the right, because the right main tunnel's construction absorbs the experience of the left main tunnel. Furthermore, authors research on rheology rule of Wuqiaoling tunnel by FLAC(superscript 3D). Numerical analysis result basically is consistent with actual measurement result. Finally, 6 principles to dispose soft wall rock rheology are presented.

首先，在对乌鞘岭深埋长隧道进行长期围岩收敛变形的基础上，分析乌鞘岭深埋长隧道左、右主洞的收敛变形规律，其研究结果表明左线主洞的收敛变形均大于右线主洞，这是由于进行右线主洞施工时吸取了左线施工的经验；然后，利用FLAC(上标 3D)对乌鞘岭深长隧道软弱围岩流变进行数值研究，数值分析结果与实测结果较为一致；最后，提出对软弱围岩流变进行工程治理的6条原则。

Based on long-term monitoring convergence deformation of Wuqiaoling deep-buried long tunnel, this paper analyzes convergence deformation regularity of two parallel main tunnels. Results show the left main tunnel＇s convergence obviously exceeds that of the right, because the right main tunnel＇s construction absorbs the experience of the left main tunnel. Furthermore, authors research on rheology rule of Wuqiaoling tunnel by FLAC^3D. Numerical analysis result basically is consistent with actual measurement result. Finally, 6 principles to dispose soft wall rock rheology are presented.

首先，在对乌鞘岭深埋长隧道进行长期围岩收敛变形的基础上，分析乌鞘岭深埋长隧道左、右主洞的收敛变形规律，其研究结果表明左线主洞的收敛变形均大于右线主洞，这是由于进行右线主洞施工时吸取了左线施工的经验；然后，利用FLAC^3D对乌鞘岭深长隧道软弱围岩流变进行数值研究，数值分析结果与实测结果较为一致；最后，提出对软弱围岩流变进行工程治理的6条原则。

In this paper,taking the rotary furnace of Tianjin steel tube company for the research object, an optimal mathematical model of the company's rotary furnace for continuing heating up semi-finished steel tube has been set up and the numerical analysis is made and a computer simulating interface has been developed .

以天津钢管公司的环形加热炉为研究对象，建立了环形加热炉管坯连续加热过程数学模型，并进行了数值解析。同时开发了计算机仿真界面，对管坯在炉内的加热情况进行了数值模拟，利用现场实验数据对所建立的数学模型进行了验证。

The numerical analysis of finite element method is an important means of modern engineering refined design, having become an indispensable engineering tool for designers.

有限元数值分析是现代工程精细设计的重要方法，已成为工程设计人员不可或缺的重要工具和手段。

The numerical analysis shows that the forward-curved impeller can make full use of the capability of fitting the negative incidence range and its internal flow performance is better than that of the baseline, and the forward-curved swept-back impeller can improve effectively the serious separation near the shroud and hub occurred in the baseline.

数值分析表明：前弯叶轮充分利用了其对负冲角工况的适应能力，内流特性优于常规设计的近似径向进口型线叶轮；而进一步发展的前弯后掠叶轮明显改善了原型叶轮轮壳和轮毂处严重分离的现象。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。