查询词典 Poisson ratio

The influence of density of concrete,wave speed of specimen and Poisson s Ratio of concrete on early-age elastic modulus of concrete are studied.

利用超声波无损检测方法测定混凝土的早龄期弹性模量，研究了混凝土的密度、通过试件的波速以及混凝土的泊松比三个因素对早龄期弹性模量的影响。

A linear statics analysis, for example, will require an elastic modulus, Poisson's ratio and perhaps a density for each material.

线性静力学分析，例如，将需要弹性模量、泊松比和密度为每一个可能的材料。

The results demonstrate that the addition of fiber can improve the bending strength of set cement by more than 30%, and the elastic modulus drops and Poisson's ratio increases with the blend quantity of carbon fiber increasing.

结果表明，纤维的加入可以使水泥石的抗折强度提高30%以上；随纤维掺量的增加，水泥石的弹性模量减小，泊松比增加；纤维在水泥石中的分布有效地阻止了裂纹的发展，增强了水泥石的韧性抗断裂能力。

It is shown by the friction material behavior tests that the friction material behavior is influenced not only by its mechanical properties, such as hardness, modulus of elasticity, yielding stress and Poisson's ratio etc., but also by its chemical constitutions.

通过对摩擦材料的研究说明：摩擦材料的性能不仅受材料的力学特性，如硬度、弹性模量、屈服应力、泊松比等因素的影响，而且还受其化学组成的影响。

The model has also shown to be robust regarding changes in Young's modulus, Poisson's ratio and yield stress since very small changes in stresses and deformations occurred when changing these parameters.

该模型也显示出强劲的有关变化的杨氏模量，泊松比和屈服应力，因为非常小的变化，压力和变形时发生改变这些参数。

The method can calculate the Young's modulus and Poisson's ratio of rock mass which include rock, structure surface and anchor rope.

这种方法可以算出含有节理的岩体的变形模量和泊松比，以及加有锚索后岩体的变形模量和泊松比。

In consideration of the convenience in FEM analysis, it is suggested that there is no need for reducing the values of elastic modulus and Poisson's ratio with SSR in slope stability analysis.

因此，为了便于强度折减有限元方法在边坡稳定性分析中的运用与发展，建议在有限元计算中不对弹性模量E与泊松比v进行折减。

It is analyzed that the rock's deformation parameters such as Young's modulus and Poisson's ratio are influenced by the change obliquity of anchor rope.

文中重点分析了在缷荷条件下，预应力锚索同一数量不同倾角的变化对岩体变形参数如变形模量E和泊松比ν的影响。

L / L Poisson's ratio varies from 0 to 1/2.

小形变情况下，虎克定律成立，应变与应力成正比。

The results indicate that the slope deformation decreases with the increase of the deformation modulus and the increase of Poisson's ratio, but horizontal displacement slightly increase.

研究表明，边坡位移随变形模量E的增大而减小；泊松比的增加，则会引起x方向的位移的增加，y方向的位移减小；而岩体密度对岩石边坡位移的影响甚弱。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。