By mechanical test of the steel strip and simulation of strip deformation in tension leveling using finite element method,characteristic features of the strip were obtained,such as;high yield stress,high yield ratio and low plastic elongation as the basic reason of difficulty in tension leveling and shape control.

通過(guò)對(duì)全硬鋼的力學(xué)性能的測(cè)定和拉矯變形行為的有限元仿真操我视频网站在线观看，發(fā)現(xiàn)屈服應(yīng)力大黄色在线精品、屈強(qiáng)比高以及斷裂時(shí)塑性延伸小等特性是造成鍍鋅后全硬帶鋼拉矯困難和板形難以控制的根本原因精品国产一级毛片在线看。

The authors adopted the software of finite element to simulate rock tension fracture, gave the breakdown of extensional criterion, selected the round, arch wall, rectangle, trapezoid and hemicycle as the simulation models and obtained the tension fracture forms of different shape chambers.

采用可模擬拉張破裂的有限元軟件在线三级网，給出拉張破裂的判據(jù)，分別選取圓形欧洲一级黄色视频、直墻拱形免费无遮挡禁18网站、長(zhǎng)方形、梯形久久兔费黄色视频、半圓形硐室模型進(jìn)行拉張破裂有限元數(shù)值模擬国产精品一区二区哟哟视频。

The main contents and achievements are summarized as following: 1. The principle of tension leveling of metal strip is described systematically using relative tension and relative curvature on the basis of plane hypothesis including the stress distribution on the section, the condition to undergo plastic longitudinal elongation, the calculation of longitudinal elongation, the change of tension along the strip etc.. 2. The tension leveling process of metal strip on a multi-roll arrangement is investigated detailed by nonlinear finite element method and many rules to guide the strain, deformation, stress and bending moment are discovered and illustrated.

本文的主要內(nèi)容和成果如下： 1、以平面假設(shè)為前提亚洲乱码一区二区在线欧美，采用解析分析方法com国产，建立了以相對(duì)張力和相對(duì)彎曲曲率為基本參數(shù)的平面應(yīng)變金屬帶材拉伸彎曲變形基本原理較為系統(tǒng)的描述，描述涉及到應(yīng)力分布與兩個(gè)基本參數(shù)的關(guān)系久久偷拍网、帶材塑性延伸的邊界條件99视频这有这里有精品、帶材延伸率的計(jì)算、帶材張力變化的計(jì)算等99精品r视频在线观看。

It adopts the single chip computer control calculation meritorious service capacity, and parameters such as real power, reactive power, meritorious service rate element, tension fundamental harmonic virtual value and tension harmonious wave virtual value and so on these are separation to the calculation branch to the measurement that on the basis of the scattered integration formula in immediate future scattered Fourier transformation, the exchange basseted on to power system parameter sampling idea was achieved to adjust all the journey moreover the frequency alternating current frequency and the tension virtual value as well as the electric current virtual value in the way of software .

它采用單片機(jī)的控制運(yùn)算功能三级插入小视频在线观看，根據(jù)離散積分公式即離散傅立葉變換，基于對(duì)電力系統(tǒng)參數(shù)進(jìn)行采樣的思想人人插人人摸人人色，實(shí)現(xiàn)同時(shí)對(duì)一路工頻交流電的頻率视频黄页在线播放免费、電壓有效值、電流有效值的測(cè)量女人大逼黄色网站，用軟件計(jì)算分析出有功功率久草精品视频播放、無(wú)功功率、功率因素欧美AAA、電壓基波有效值在线免费观看黄色av、電壓諧波有效值等參數(shù)。

It adopts the single chip computer control calculation meritorious service capacity, and parameters such as real power, reactive power, meritorious service rate element, tension fundamental harmonic virtual value and tension harmonious wave virtual value and so on these are separation to the calculation branch to the measurement that on the basis of the scattered integration formula in immediate future scattered Fourier transformation, the exchange basseted on to power system parameter sampling idea was achieved to adjust all the journey moreover the workmans frequency alternating current frequency and the tension virtual value as well as the electric current virtual value in the way of software .

它采用單片機(jī)的控制運(yùn)算功能，根據(jù)離散積分公式即離散傅立葉變換操屄免费视频，基于對(duì)電力系統(tǒng)參數(shù)進(jìn)行交流采樣的思想九九99re6这里都是精品，實(shí)現(xiàn)同時(shí)對(duì)一路工頻交流電的頻率、電壓有效值操逼逼亚洲国产、電流有效值的測(cè)量淫乱精品自拍，用軟件計(jì)算分析出有功功率、無(wú)功功率国产夜色快憣免费完整片、功率因素、電壓基波有效值国产免费黄色网址视频、電壓諧波有效值等參數(shù)黄色18禁网址。

This thesis has studied Levy system Cable dome's tension and simulated 24 tension schemes by using finite element analysis software.

本文所完成的Levy體系索穹頂結(jié)構(gòu)的結(jié)構(gòu)選型，節(jié)點(diǎn)設(shè)計(jì)无码韩日韩视频网址大全，張拉方案研究是對(duì)現(xiàn)有索穹頂結(jié)構(gòu)理論研究的有益補(bǔ)充男人天堂最新在线，并為索穹頂結(jié)構(gòu)在我國(guó)的工程應(yīng)用提供參考。

A finite element analysis on the new method is presented in this paper. Based on the finite element analysis, tension tests of 18 steel bars in different diameters and holes are carried out. The results of tests, which are according with that of finite element analysis, validate the new method to determine real stresses of steel bars by drilling/enlarging small holes. Furthermore, some suggestions in using of the new method are given.

本文針對(duì)該新方法進(jìn)行了有限元分析韩国A片大全免费看片中文字，并在此基礎(chǔ)上進(jìn)行了18種不同鋼筋直徑和不同孔徑的帶孔短鋼筋拉伸試驗(yàn)无码国产精品一区二区v尺中国，試驗(yàn)結(jié)果與相應(yīng)有限元計(jì)算結(jié)果一致，驗(yàn)證了鉆／擴(kuò)孔確定鋼筋實(shí)際應(yīng)力的新方法美国老熟女，并提出了若干工程適用建議日韩欧美综合精品。

On the basis of thermoviscoplastic theory, the dynamic recrystallization model of tension was constructed. This model was introduced into the finite element analysis of tension of AZ31 magnesium alloy sheet by changing temperature.

摘 要：基于熱粘塑性本構(gòu)理論，構(gòu)建拉伸動(dòng)態(tài)再結(jié)晶理論模型黄色网站高清无码在线观看，并將該模型引入AZ31鎂合金薄板變溫拉伸的數(shù)值仿真黄色三级片免费看视频。

The structure internal forces were analyzed under different kinds of tension using a finite element computation model for the whole bridge with Midas software,and rational tension values and subsequence are finally calculated.

結(jié)合系桿拱橋的設(shè)計(jì)方案，對(duì)吊桿張拉力的控制進(jìn)行分析計(jì)算涩涩网站视频，并利用Midas程序建立全橋的有限元分析模型亚洲人Jizz日本jiz人，分析比較幾種張拉情況下的結(jié)構(gòu)內(nèi)力變化情況，最終得出比較合理的張拉力取值及順序欧美一,二..三性爱，分析結(jié)果可為同類橋梁的設(shè)計(jì)與施工提供一定的參考免费看成年人网站。

The Strip by testing guide roller imposed load, so that the tension sensor sensitive element generated displacement or deformation, so as to detect actual tension values, and set this tension data into tensility signal back to the tension controller.

料帶堵住檢測(cè)導(dǎo)輥承受負(fù)載，使壓力傳感器敏銳元件爆發(fā)位移或變形农村熟女乱子a，從而檢測(cè)不入本質(zhì)壓力值久久青草国产免费频观日本，并不兵此壓力數(shù)據(jù)變換不敗壓力暗記反饋給壓力把持器。