挠度

It's found that displacement response of the beam is a non stationary random process even if the moving load is a stationary process.

发现此时梁的挠度响应为非平稳随机过程。

In 1987, Kane et al.〓investigated the dynamics of a cantilever beam in a non-inertial reference frame.

建模时如果不考虑这种因素的影响，将会导致错误的结论。1987年，Kane〓对非惯性系下的旋转弹性梁的动力学特性进行研究，指出在转速较大的情况下，按零次近似建模理论进行仿真计算会得到梁的挠度趋于发散失稳这样一个错误的结论。

Based on prestressed steel beams, considering effect of the method of construction to slip and stress increment, accoding to conception that procedure of calculation reflects the procedure of construction and change of structural internal force, making good use of the method of section conversion and making iteration reflect the coupling of slip and stress increment, bringing forth a method of iteration and modified stiffness to calculate the deflection of prestressed composite steel-concrete beams in normal servicing prase.

以预应力钢梁为基础，充分考虑施工方法对结构滑移和应力增量的影响，依据设计计算中反映施工过程和结构受力变化过程，通过截面换算，以循环迭代法来考虑滑移和预应力钢束的耦合作用，提出了计算预应力钢—混凝土组合梁正常使用阶段挠度变形的迭代—修正刚度法。

The developed program also has some post-processing functions including structure shape map, discrete structure mesh map, structure displacement map, cracking map, stress map of steel bar, principal stress map of any section, searching displacement of any load step, load-deflection curve map of any node and so on.

包括结构形式图、结构剖分网格图、结构变形图、裂缝开展图、钢筋应力图、任意横截面的主应力图、加载过程中的任意荷载下的位移查询、任意结点的荷载—挠度曲线图等。

The principle variation of beam deflection is calculated with two variable parameters: the initial speed and the acceleration of moving mass, using the solution method of time-variant mechanical system.

利用时变力学系统的求解方法，得到在移动质量的初速度和加速度两个运动参数变化情况下，梁的挠度变化规律。

Aiming at structural design influence of part physical dimension and uncertainty of exterior load, response surface and several statistic parameter analyse of bridge truss structure bending stress and deflection was proceed by means of probability design and finite element method.

针对桥梁桁架实际设计中，零件结构尺寸、外部载荷的不确定性对结构设计的影响，采用概率设计与有限元技术相结合，通过参数化建模，运用响应面法构造了近似函数，对桥梁桁架弯曲应力和挠度进行了概率设计。

The calculation of strength and deflection of ledger is based on the design of every three spans within two strides, and the main rail is over the putlog .

大横杆按照三跨连续梁进行强度和挠度计算，大横杆在小横杆的上面。

Reciprocal theorem for non-linear elasticity with finite displacements in rectargular cartesian coordinates is established in this paper and reciprocal theorems for bending of thin plates with large deflections are given.

建立了直角坐标系有限变形非线性弹性力学的倒易定理并给出了大挠度弯曲薄板的倒易定理。

The maximum relative errors of calculation compare with the results of literature[3] are less than 10%, commonly the errors are still less than 5%. The accuracy of deflection is higher.

计算结果与文献[3]的结果比较，一般误差不超过10％，大多数在5％左右，挠度的精度更高。

Based on the characteristics of this kind of buildings, the items of inspection consist of geometrical shape, sectional dimension, global construction, deflection, material behavior, welding quality, corrosion, and so on. By the inspection some problems in column, steel roof truss and filler wall were found. then, a design of reinforcement was made.

根据此类建筑的特点，对钢屋架进行了几何形式、截面尺寸、整体构造、挠度、材质、焊接质量、锈蚀等多方面的检测，发现了混凝土柱、钢屋架、填充墙各自存在的问题，并有针对性地进行了加固设计。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。