Using asymptotic analysis and numerical optimization, approximative yield equations are obtained for the extended Gurson model, accounting for the void size effect.

通過(guò)漸近分析、數(shù)值優(yōu)化的方法對(duì)參變式屈服曲線(xiàn)作進(jìn)一步的近似婷婷操操b，得到了考慮尺寸效應(yīng)的修正的Gurson屈服形式疯狂欧美黑粗硬大插进去了。

In this paper,researches were made on aspace piezoelectric truss.First,based on the piezoelectric theory and FEManalysis and knowledge of active vibration control,theoretical analysis and numerical simulation was carried on.And then,an experiment upon real-time active vibration control of the truss by computer was carried out.

本文以一空間壓電桁架結(jié)構(gòu)為切磋工具，應(yīng)用壓電表面激情另类小说、有限元分析和振動(dòng)自動(dòng)節(jié)制的相干常識(shí)一级黄色片美国，在清楚的表面分析和謀劃?rùn)C(jī)仿真的根本上，用嘗試驗(yàn)證的方法對(duì)空間壓電桁架結(jié)構(gòu)的振動(dòng)進(jìn)行謀劃?rùn)C(jī)及時(shí)自動(dòng)節(jié)制女生叉开腿让男生桶。

The study of the bearing characteristic, the deformation mechanism and the bearing behavior of large diameter belled pile in deep soft soil has been expanded from analysis of field test data, analytic study and numerical calculation.

本文基于實(shí)測(cè)數(shù)據(jù)分析欧美A级中文字幕乱片、解析研究及數(shù)值計(jì)算等方法，對(duì)深厚軟土地基中大直徑擴(kuò)底樁單樁的承載變形機(jī)理及承載性狀開(kāi)展了研究工作欧美黑人巨大巨粗性XXXX。

The technique of CAE about injection molding is based on polymer processing rheology and conductive calorifics. It simulates the actual process of melt filling, packing and cooling by setting up mathematic and physical models about melt flowing and heat transmitting in the mold cavity, and working out the results by the theory of numerical value analysis. It can also list the processing parameters quantificationally such as pressure, time, temperature, speed, etc, and reflect the results visually by computer figures.

注塑模CAE技術(shù)是根據(jù)塑料加工流變學(xué)和傳熱學(xué)的基本理論欧美另类69高清XXXXX，建立塑料熔體在模具型腔中的流動(dòng)、傳熱的數(shù)學(xué)物理模型看AV片网站，利用數(shù)值分析理論構(gòu)造其求解方法在线视频A∨，模擬出實(shí)際成型中熔體的動(dòng)態(tài)填充、保壓国内自拍无码日韩经典视频、冷卻過(guò)程欧美日韩www，定量地給出成型過(guò)程的狀態(tài)參數(shù)(壓力、時(shí)間国产精品无码AV在毛片、溫度国内永久第一免费福利视频、速度等)，并利用計(jì)算機(jī)圖形學(xué)的技術(shù)97re精品视频在线观看，可形象而直觀地反映出分析的結(jié)果色战五月天天天天天。

The fluid flows and heat coupled calculation method is used. The standards two equations turbulence models, velocity and pressure coupled arithmetic are used.According to the results of numerical simulation analysis the local coefficient distribution changes along the pin fins.Study the effection that its height and shape of the pin fins have on the average Nu and the average number of pressure loss coefficient Eu.The circle-shaped and elliptic-shaped pin fins have different circumcolumnar regional,therefore the mixed conditions are effected.

數(shù)值計(jì)算中采用標(biāo)準(zhǔn)雙方程湍流模型，速度壓力耦合算法www.国产无码；根據(jù)數(shù)值模擬的結(jié)果分析沿?cái)_流元的局部換熱系數(shù)分布變化欧美人牲交免费黄色一级片爱情就爱，研究其擾流柱高度及形狀對(duì)擾流柱通道平均努賽爾特?cái)?shù)Nu和平均壓力損失系數(shù)Eu的影響，圓形和橢圓形擾流柱的繞流尾渦影響的區(qū)域的不同對(duì)擾流柱群內(nèi)流體混合狀況的影響中文字幕网站在线观看。

Their load resistance behavior before and after applying FRP strengthening is investigated and analyzed by compositively using the methods of experiment, finite element numerical analogue and theoretical analysis.

本文將試驗(yàn)手段国产一级婬片A片免费无码、有限元數(shù)值模擬方法和理論分析結(jié)合起來(lái)，對(duì)三組核心區(qū)配箍率不同的梁柱節(jié)點(diǎn)試件采用玻璃纖維片材加固日韩午夜在线试看网站免费视频，并對(duì)加固前后的承載性能進(jìn)行了比較和分析老司机日韩精品伦理片。

The real-world joints in the aircraft structure usually consist of multi-row fasteners. This thesis builds the 3D FE contact analysis model of a typical aircraft joint with three-row countersunk screws, and studies pin-load distribution and stress characteristics under constant and varied cross-section thicknesses as well as with and without pre-tighten screw conditions for the joint. Many applied pin-load numerical distribution laws for different conditions in the joint are recognized.

本文對(duì)典型的多排沉頭螺釘接頭建立了三維有限元接觸分析模型，對(duì)螺釘?shù)尼斴d分布在截面等厚度和變厚度欧美人性黄片视频直播间、無(wú)預(yù)緊力和加預(yù)緊力多種情況下進(jìn)行了數(shù)值計(jì)算分析日韩欧美性爱视频，給出了諸多實(shí)用化釘載分布規(guī)律。

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以東方鍋爐集團(tuán)公司的一臺(tái)1900 t /h超臨界壓力直流鍋爐為研究對(duì)象https国产黄视免费，在分析機(jī)組結(jié)構(gòu)和特性的基礎(chǔ)上久久夜色精品，從機(jī)組的工作機(jī)理出發(fā)，以質(zhì)量、能量爱爱亚洲区女视频、動(dòng)量守恒定律為依據(jù)毛片网址资源这些播放，將流體力學(xué)領(lǐng)域中的Lagrange流體質(zhì)點(diǎn)追蹤思想用于機(jī)組運(yùn)行特性的分析上，建立了適用于超臨界壓力直流鍋爐汽水系統(tǒng)單相欧美一级高清黄片视频、雙相受熱面的非線(xiàn)性分布參數(shù)通用動(dòng)態(tài)數(shù)學(xué)模型人操人人人爽人人爽人人，該模型適合于大擾動(dòng)全工況變化的數(shù)值仿真計(jì)算，充分體現(xiàn)了過(guò)程熱力參數(shù)的分布特性和環(huán)節(jié)中能量輸送過(guò)程的時(shí)滯特性日韩台精品电影在线观看，并對(duì)模型通過(guò)計(jì)算機(jī)仿真得出各種擾動(dòng)下系統(tǒng)主要變量的響應(yīng)曲線(xiàn)操BBBB视频，從理論上分析了仿真結(jié)果的合理性。

Based on data gained from in - site , ANSYS finite element analysis software is used , numerical value simulation was carried out in stress distribution国产精品免费一区二区三区在线看、mechanics property2020亚洲欧洲自拍偷拍视频、 methane removal of coal body which is located in front of drivage face before and after taking hydraulic pressing measures.

以現(xiàn)場(chǎng)實(shí)測(cè)數(shù)據(jù)為基礎(chǔ)，利用ANSYS有限元分析軟件国产宅男精品，對(duì)水力擠出措施實(shí)施前后的掘進(jìn)工作面前方煤體應(yīng)力分布日韩午夜在线看导航视频网站免费、力學(xué)性質(zhì)、瓦斯運(yùn)移進(jìn)行數(shù)值模擬久一精品，研究了水力擠出措施的消突機(jī)理A级毛片高清免费网站不卡。

Based on data gained from in- site, ANSYS finite element analysis software is used, numerical value simulation was carried out in stress distribution、 mechanics propertyAAAAA西欧黄片、 methane removal of coal body which is located in front of drivage face before and after taking hydraulic pressing measures.

以現(xiàn)場(chǎng)實(shí)測(cè)數(shù)據(jù)為基礎(chǔ)私人玩物一区二区，利用ANSYS有限元分析軟件，對(duì)水力擠出措施實(shí)施前后的掘進(jìn)工作面前方煤體應(yīng)力分布男女自拍视频网站、學(xué)性質(zhì)国产精品无码嫩草免费下载、斯運(yùn)移進(jìn)行數(shù)值模擬，研究了水力擠出措施的消突機(jī)理亚洲欧美在线图片区。