拉力的

This paper first analyses the stress acting on the cable by means of tiny segment analytical methods, establishes cable's stress equation, and finds out the relation between the tethered aerostat's position and its stress acting by cable; then, based on the momentum and moment of momentum theorem, the longitudinal nonlinear dynamic equation is established; Finally a numerical simulation of dynamic responses of the balloon and cable to gust are carried out.

本文首先通过微段分析法对缆绳进行受力分析，建立缆绳的受力方程，找出了系留气球在空中的位置同系留气球所受缆绳拉力的关系；然后根据动量和动量矩定理建立了球体的纵向非线性运动方程；最后通过数值仿真计算，对系留气球的纵向动态响应特性进行了分析。

The motor will actively reduce cable tension peaks during the dynamic phase of the arrestment, and will accurately control both the hook load during arrestment and the final stopping position of the aircraft.

这种发动机将在阻拦的动态过程中有效降低阻拦索拉力的峰值，并对着舰钩挂上阻拦索的整个过程以及飞行最终停止的位置进行准确的控制。

Seventhly, a series of experiments and projects were carried out for verifying the previous theory. First, the cable force control test of reticulated shell-string structure in 2.2m×4.6m was conducted using the arithmetic presented in the paper. Second, the numerical analysis during construction, the adjustment of cable forces and the changing of cable of the Beijing North Railway Station were conducted.

为了进一步验证本文前几章有关预应力空间钢结构索张拉计算方法的正确性，本文进行了一系列的试验研究，包括：用提出的基于索原长反分析法对一2.2m×4.6m的小型张弦网壳进行索张拉成形的试验研究；对北京北站进行了模型施工过程分析、模型索张拉力的调整、换索试验研究。

That is what Ford is reaping the reward for doing now, under the less exciting but steadier leadership of Alan Mulally.

现在在艾伦·穆拉力的相对平淡却稳健的领导下，福特要收获曾经的冒险种下的果实。

Based on the finite element method, a fresh and unique type of footbridge, a papilionaceous partial tied arch footbridge, was analyzed. The influences to the whole structure's stress behavior, displacements, vibration periods and mode shapes under parabola and arc arch axis were discussed. Different selections of support forms, such as longitudinal slide or longitudinal hinge, led to different behaviors on structure.

针对一种新型而特殊的蝶式部分系杆拱步行桥，基于有限元数值分析比较抛物线形拱轴线和圆弧形拱轴线对整个结构受力、变形、周期和振型的影响，揭示选用纵向滑动支座与纵向不动铰支座时给结构性能带来的不同结果，对结构拉索张拉力的控制给出建议。

In short, there was not much that was brought to our house that was not moved out of it again, rather sharpish. There was only one thing, in fact, that had come and got stuck-one thing that had somehow withstood the tremendous pull of that passage of poke- one thing that Mr Ibbs and Mrs Sucksby seemed never to think to put a price to.

总之，我们家只进不出的东西不多，而且转手相当迅速，只有一样东西，事实上，，那东西来了就黏在这儿了——一样儿不知为何经得住那条送货通道的强大拉力的东西——一样儿易先生和萨斯比大妈似乎从未想过要标价的东西。

In general, the major results are:(1) Established the geometrical model for the enwinding of the wire rope in the roller, such as the inclination of the wire rope and the climbing equation of roller in the commutation process;(2) Established the tensile force kinetic model for the enwinding wire rope used the Lagrange kinetic equation and the continual kinetic theory in the start up and retard moment. Solved the equations by the method of modal analysis and separation of variables(3) Based on the analysis on the enwinding mechanism of the wire rope, we did the research on the mechanics behavior of the wire ropes enwinding process.(4) According to the research above, we made the computer program to solve the mechanics models. And after parametric analysis, we made the suggestion for the improving of the current wire rope enwinding system.

主要研究工作有：(1)建立了钢丝绳在滚筒缠绕几何模型，研究了钢丝绳缠绕过程极限偏角及换向过程在滚筒爬坡机理及几何模型；(2)依据LAGRANGE系统广义动力学方程、连续体动力学理论分别建立起升系统启动及制动过程钢丝绳缠绕快绳拉力的动力学模型，并分别采用模态分析法及分离变量法求解；(3)结合对钢丝绳在钻机滚筒缠绕机理分析的基础上，研究了钢丝绳在滚筒缠绕过程力学行为；(4)编制计算机仿真程序对上述模型进行求解，在参数分析的基础上提出对目前钢丝绳缠绕系统结构改进建议。

The shielded-type control cables,because Of good shielding properties,are used in large quantity in power plants,power stations and theycan belaid in indoors,cable channels pipes,shafts and any place which can stand large

其中屏蔽型控制电缆，由于具有良好的屏蔽性能得到电厂、电站的大量使用，可以敷设在室内、电缆沟，管道、直理、竖井等能承受较大机械拉力的各种场合。

The paper introduces the common depressing roll apparatus in pipe manufacture engineering,analyses the motion and the mechanical state,derives the calculation formula of hydraulic piston travel about the distance to control the idler,analyses the parameters on stroke,gives the value range based on practical experience,then determines the range of hydraulic pressure tension.

文章介绍了在管加工工程中常用的升降托辊机构，通过升降托辊机构的运动分析和力学分析，推导出控制托辊升降距离的液压行程的计算公式，分析影响行程设计的各参数的大小，并根据实践经验给出有关参数的取值范围，确定液压拉力的大小。

The thrust of arch springing line during each phase is resist by corresponding tied bars. In a certain state, it is critical and important to make the correct value and reasonable time of pull of tied bars.

在某个特定状态下，合理确定系杆张拉力的大小和张拉时间成为施工控制的关键，在该桥控制过程中起着非常重要的作用。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。