弹性梁

With the way to solve the distortion effect problem by the flexible foundation method, the distortion stress was calculated after solving the cross-section distortion angle.

分析畸变效应时采用了弹性地基梁法的求解思路，在求出截面畸变角后，计算畸变应力。

They are the deflection w, the rotations of the normal to the undeformed median surface Φx,Φy and the force function F. In the present paper these dependent functions are expressed as generalized double Fourier series with beam eigenfunctions as general terms.

本文中将这四个独立的函数表示为广义傅里叶级数，选用了两个变量分离的梁本征函数之积构成广义傅里叶级数的通项，通过梁本征函数中的待定常数使所选级数预先满足简支、固支或弹性支持边界条件。

By using generalized Duhamel's integral and integral transform, this paper investigates random response of an infinite beam on the Kelvin viscoelastic foundation subjected to a moving load.

利用广义Duhamel积分和积分变换，研究了粘弹性Kelvin地基上无限长梁在运动的线源平稳随机荷载作用下的随机响应。

In the experiment , the grating is mounted and glued on one side of a cantilever beam made with a material having a relatively large elastic constant .

在实验中，光栅安装和胶合一方悬臂梁同一种材料具有较大的弹性常数。

And established the mechanics model,optimization parameter model,optimization mathematics model for the elastic element of the extensometer,programs analysis file and optimization control file by using the ANSYS parameter design language.

解析设计方法：依据弹性元件的受力特点建立其力学模型，运用已成熟的力学理论，如薄板弯曲理论、梁弯曲理论、柱拉压理论、剪切理论等获得弹性体的应力应变的解析值，从而获得目标函数和状态变量的解析值。

The theory and the implementation of the genetic algorithms are discussed in detail. The question on how to choose the crossover probability, the mutation probability, the scale of population and the numbers of the generation is discussed. Then, the mathematics model of the optimal design is established. Exerting the finite element of elastic base beam and using FORTRAN to write the GAFORTRAN program. The program includes the common genetic algorithms and the modified genetic algorithms.

详细介绍了遗传算法的理论和实现技术，探讨了交叉概率、变异概率、群体规模、进化代数等变量的选取问题，建立起了基于遗传算法的深基坑支护结构设计的优化模型，结合弹性地基梁有限元法，利用FORTRAN语言编制了GAFORTRAN优化程序，程序中包括普通遗传算法和改进遗传算法。

Further,in illustra- ting the principles of designing an U-shaped floating dock which is used for docking of 10,000 tons-class merchant ship s as an example,the author solved and analyzed the problems regarding to longitudinal strength of floating dock and the ship docked therein with the use of theorem of beams on elastic foundation.

然后以万吨商船为例阐述了浮坞设计的概要，并运用弹性基础梁的理论对浮坞强度计算进行了分析和探讨。

According to the principle of ring-like strands operation, the mechanical analytic solution of presressed concrete penstock under the uni-ring-like radial loads is given out based on the theories of elastic footing beam.

根据环形预应力作用机理，结合弹性地基梁理论，提出了单环预应力作用效应的计算方法和预应力混凝土压力管道施工阶段的验算方法。

In this paper, a kind of generalized Krylov function is defined and discussed.

河南省自然科学基金项目（984070700）资助摘要定义并讨论了一类广义克雷洛夫函数，给出了用该函数表示的弹性地基上铁摩辛柯梁的解析

First, a refined 3D linear finite element model of the PC box girder had been established.

首先对箱梁建立了精细的三维线弹性有限元模型，并通过施工阶段的现场实测对计算结果的精确性进行了验证。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。