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.

第四章集中對Y型量子結構進行了數值模擬工作，研究內容包括Y型量子開關的電子輸運性質和Y型量子開關的形成條件。

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.

通過對TiN涂層／基體系統(tǒng)的數值模擬分析，得到了涂層／基體系統(tǒng)疲勞失效的一些典型規(guī)律：(1)、涂層基體的初始損傷首先出現在交界面處韩国三级最新，然后沿界面并向基體中擴展，最后導致涂層斷裂而發(fā)生剝落失效91在线免费a；(2)国产成a人片在线观看视频下载、在切向滑動和徑向擠壓循環(huán)載荷作用下，交界面處的塑性損傷主要是由剪應力τ產生久久免费视频三级片，塑性累積也是由于△τ的變化引起成年人黄色网站视频，說明循環(huán)過程中剪應力變化是影響涂層接觸疲勞破壞的主要因素；(3)人人摸夜夜操、材料摩擦系數、外界載荷大小以及涂層厚度都對涂層／基體系統(tǒng)的承載能力以及疲勞壽命都有一定影響91制服丝袜。

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.

本文討論分析了軟巖流變模型性爱高潮视频，通過實驗與數值分析相結合，對軟巖的膨脹特性及蠕變特性進行了研究三级黄色在线，探討了軟巖的膨脹機制宅男国产免费观看视频在线播放，建立了軟巖的蠕變模型。

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

一種藝術的數值分析是找到一種穩(wěn)定算法求解良好的數學問題提出的人人专区人人免费。

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.

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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.

首先你懂得网站在线免费观看，在對烏鞘嶺深埋長隧道進行長期圍巖收斂變形的基礎上日本高潮视频，分析烏鞘嶺深埋長隧道左、右主洞的收斂變形規(guī)律www.av福利.com，其研究結果表明左線主洞的收斂變形均大于右線主洞国产毛片网址有吧，這是由于進行右線主洞施工時吸取了左線施工的經驗:丰满熟女一级黄色视频一区二区三区；然后，利用FLAC(上標 3D)對烏鞘嶺深長隧道軟弱圍巖流變進行數值研究欧美亚州一区，數值分析結果與實測結果較為一致国产乱来视频；最后，提出對軟弱圍巖流變進行工程治理的6條原則免费欧美午夜性爱视频。

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.

首先伊人久久99女女精品视频欧美一区二区，在對烏鞘嶺深埋長隧道進行長期圍巖收斂變形的基礎上，分析烏鞘嶺深埋長隧道左日韩精品不卡一区2区、右主洞的收斂變形規(guī)律大学生一级黄片，其研究結果表明左線主洞的收斂變形均大于右線主洞，這是由于進行右線主洞施工時吸取了左線施工的經驗国产综合在线视频；然后色色欲视频网站，利用FLAC^3D對烏鞘嶺深長隧道軟弱圍巖流變進行數值研究，數值分析結果與實測結果較為一致欧美黄色小视频免费观看；最后午夜人人操，提出對軟弱圍巖流變進行工程治理的6條原則。

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 .

以天津鋼管公司的環(huán)形加熱爐為研究對象丰满熟妇口爆吞精，建立了環(huán)形加熱爐管坯連續(xù)加熱過程數學模型谁有免费的黄色视频，并進行了數值解析。同時開發(fā)了計算機仿真界面www.久久思思热.com，對管坯在爐內的加熱情況進行了數值模擬国产一级在线观看免费视频，利用現場實驗數據對所建立的數學模型進行了驗證。

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

有限元數值分析是現代工程精細設計的重要方法黄片大全免费看的mm视频，已成為工程設計人員不可或缺的重要工具和手段95视频网址。

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.

數值分析表明：前彎葉輪充分利用了其對負沖角工況的適應能力，內流特性優(yōu)于常規(guī)設計的近似徑向進口型線葉輪无码毛片一区,二区,…；而進一步發(fā)展的前彎后掠葉輪明顯改善了原型葉輪輪殼和輪轂處嚴重分離的現象免费看的黄色网站入口。