查询词典 Poisson ratio

The real yield criterion under the condition of consideration of poisson ratio or different properties of tension and compression is discussed.

分别探讨了在考虑泊松比μ的影响和材料拉压强度不相等的条件下的实际屈服准则。

Where A and B are material constants,I 1 ,I 2 ,and I 3 are mean strain invariants,and n is Poisson's ratio.

其中A和B是材料常数，我一，我2，我3是平均应变不变量，而n是泊松比。

The tension Poisson ratio is negative,and its regression curve shows upward section and downward section.

这可能与钢筋混凝土的泊松系数和弹性模量的取值有关。

In this study, a method to measure the Poisson's ratio of thin MEMS film according to optical interference technical is proposed.

提出了一种基于光学干涉技术的MEMS薄膜泊松比在线测量方法。

According to this inequality the necessity of adjusting the Poisson's ratio in FEM analysis can be determined.

该关系不等式不仅说明了在强度折减有限元法中相关变形参数折减的必要性，同时也是对岩土体泊松比是否进行调整，调整多少的一个重要判据。

Poisson's ratio of the concrete,steel, and resin is 0.2, 0.3, and 0.37, respectively.

混凝土、钢材和树脂的泊松比分别为0.2、0.3和0.37。

Based on the computing formula, it has been found that the horizontal dynamic response is affected by Poisson's ratio.

在此计算公式的基础上分析了长径比、桩土刚度比、地基土的泊松比对羊桩横向响应的影响。

Certain range of elastic modulus and Poisson's ratio was simulated.

实验二：不同的修复材料，其物理力学属性各不相同。

In order to resolve this problem, we bring forward a modified algorithm and apply it to pre-stack inversion of reservoir parameters (Poisson ratio, P-wave velocity and density).

本文在前人研究的基础上提出了改进的模拟退火算法，同时利用改进的算法反演了地层泊松比、纵波速度和密度。

The elasticity module and the Poisson ratio can be identified simultaneously by this approach. The priori information is considered.

在反演中考虑了先验信息，并对该方法的抗噪音能力进行了考察。

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。