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In the thesis the author analyzes the tripping of stiffened panels by three different methods. Based on the above method, the author calculates the ultimate longitudinal strength of a boxlike girder, several ships and many stiffed panels by program. And then checks with some famous experts results. The result is approving. Also the author analyses the reliability of ship considering corrosion. At last an experiment is done to verify the theory.

由于加筋板侧倾屈曲是一种非常危险的破坏形式,本文采用不同方法分析了加筋板侧倾屈曲,并作出了比较;基于上述方法运用计算机程序计算出了箱型梁和几种实船的极限承载能力以及各种加筋板单元的极限强度,并和著名学者的结果进行了比较,结果令人满意;分析了某实船的考虑腐蚀影响的可靠性指标;最后,为了验证理论的精确度,作者参与了钢箱型梁的极限强度试验,通过比较试验数据与理论数据,结果基本一致。

The ultimate displacement and distortion capacity are increased obviously by the construction measures because the frame composed of structural column, crout column and sill ring beam is formed to resist the action of lateral loads after cracks are appeared in walls, then the safety of walls is improved.

而从极限位移的情况看来,采取了构造措施后的墙体,其极限位移也有明显的提高,说明墙体开裂以后,构造柱、芯柱、窗台圈梁组成一个受力框架来更多的承受水平荷载,从而提高了墙体的极限位移、刚度以及延性,也增大了墙体的安全储备。

This paper is also concerned with the nonlinearity measure of the PKM, which depend upon differential geometry curvature. The nonlinearity can be reflected by the curving of the solution loci and the equal interval input of joints mapping into inequable interval output of the end-effector.

从而解决了PKM设计中根据进给能力需求优化结构参数、确定关节伺服轴极限转速,以及在数控编程中由机床结构参数、关节伺服轴极限转速和加速度评价刀具进给能力的软极限的两类互逆问题。

Typical results of the limits of superheat and su p er-depressurization for methane and propane are given,and the critical liquid st orage conditions that can lead to limits of super depressurization are analysed.

以 甲烷和丙烷为例给出了过热极限和过减压极限的典型计算结果,分析了可能使液体达到过减压极限的储存条件。

The left and right regions of forming limit diagram were calculated and analyzed for the electrodeposited nickel coating.

计算结果表明电沉积镍涂层钢板的成形极限介于母材镍涂层与母材基体钢板的成形极限之间,并非常接近基体钢板的成形极限

The capacity of single pile will enhance when the length and diameter of pile increases, but effect of pile diameter is more obvious. While pile diameter increases 20、40 and 60 percents, the capacity of pile will enhance 20.4、53.7 and 78.1 percents. And with the effect of mud-cake, the capacity of single bored pile will fall down nearly 20 percents, and pile-side resistance will also reduce 15 — 35 percents. In the centrifuge tests, when the relative displacement between pile and soil was 45 —85mm, which is much more than the criterions, the pile-side resistance will become most. Meanwhile the intenerated value of utmost resistance is close to the resistance in situ. In the pile group tests, the capacity of pile group , which the space among piles increases from 2D to 3D、 4D and 5D , will enhance 6.1、9.6、18 percents .

当桩径增加20%、40%、60%时,桩承载力分别增长了20.4%、53.7%和78.1%;在考虑泥皮效应后单桩侧摩阻力减小15~35%,极限承载力减小18%~24%,且减小率随桩径的增加而变小;试验中桩身侧阻软化值与原型桩实测侧阻软化值接近,且极限侧阻所对应的桩土相对位移试验要比规范值大得多,约为45~85mm;同时群桩极限承载力随桩距的增大而增加,其中桩距为3D、4D、5D的群桩承载力分别比间距为2D的群桩高6.1%、9.6%和18%;其承载力效应系数η接近或大于1,并随着桩间距的增大而不断提高;群桩侧摩阻力沿深度的分布与单桩略有不同,即桩身上部由于承台的作用,侧阻削弱,但桩身中部侧阻具有增加的趋势。

Based on the theory of plasticity and the concept of equal-strength design, the general formulas for calculating the plastic limit speed and stresses in the roll body and the axle sleeve are derived.

应用塑性力学方法分析铸钢辊的塑性极限状态,根据等强度设计思想,导出了塑性极限车速的计算公式,建立了塑性极限状态时辊筒与闷头中应力分量的一般公式,进而提出了铸钢辊结构承载潜力评定的方法。

In the design of expension tool, the cone angle is the key, because it must satisfy the plastic extreme condition of the expension tube and reduce the upgoing frictional resistance of the expension cone to minimize the possibility of tool sticking. It is preferred that the material quality of expension tube must differs from that of casing and the yield limit of expension tube must be less than that of casing, which is favorable to protect casing.

在膨胀工具结构设计中,锥角设计是关键,除了要满足膨胀管达到塑性极限条件外,还应综合考虑膨胀锥上行的摩阻尽可能小,以减小工具卡死的可能;膨胀管的材质应与套管材质有差异为好,并且膨胀管的屈服极限应小于套管的屈服极限,这样有利于保护套管。

In recent years we have seen the rise of what must be the silliest sport of them all extreme ironing. Invented in Leicester in 1997, extreme ironing has become a global phenomenon. Extreme ironers attempt to do their ironing in the strangest and most dangerous places under the sea, on top of mountains, even at the end of a parachute falling to earth.

最近几年里我们已经曾加了一个将会失去知觉的运动-极限烫衣板运动。1997年在莱斯特创造的,极限烫平衣服已经成为全球性现象,极限烫衣是很生疏的去尝试把他们的衣服烫平,大多数是在危险的地方-海洋的下面,在很高的山顶上,在降落伞滑落在地球的末端。

Erection parameters in the literature [9] nonlinear analysis method used to calculate some of the variables erection capacity limit, but no major erection of some other variables, such as the level of the top-Ligan excess of the limit load length the impact of, and the top model Ligan more displacement constraints, and the actual situation of access to a certain extent; literature [7] space will be just as Falsework framework erection of the main parameters of the critical load, and The literature [10] scaffold for the ultimate strength estimation method for calculating the results of the amendment.

在搭设参数方面,文献[9]采用非线性分析方法,计算了部分搭设变量下的极限承载力,但是没有分析另外一些主要搭设变量如立杆超出顶层水平杆长度对极限承载力的影响,而且计算模型的顶部立杆位移约束较多,和实际情况有一定的出入;文献[7]将模板支架视为空间刚框架,分析了主要搭设参数下的临界荷载,并采用文献[10]提出的用于外脚手架极限承载力的估算方法对计算结果进行了修正。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。