1) equivalent longitudinal bending rigidity
等效弯曲刚度
1.
The equivalent longitudinal bending rigidity of a shield tunnel is discussed in this paper,as traditional equivalent longitudinal rigidity continuity model doesn t consider the longitudinal joints which can influence the equivalent longitudinal bending rigidity,al- so it doesn t consider mode of lining ring erection which can influence the equivalent longi- tudinal bending rigidity.
本文围绕盾构法隧道纵向等效弯曲刚度问题,相对于传统等效连续化模型没有考虑纵缝对隧道纵向等效弯曲刚度的影响,也没有考虑隧道拼装方式对纵向等效弯曲刚度的影响,文中建立了五种纵向隧道模型,运用壳-弹簧模型对五种隧道模型的纵向等效弯曲刚度进行了研究,研究了隧道纵缝对隧道纵向等效弯曲刚度的影响,比较了不同管片拼装方式对隧道纵向等效弯曲刚度的影响,并与现有研究作了比较,对盾构管片的设计具有一定的指导作用。
2) bending stiffness equivalence
弯曲刚度等效
1.
Based on the principle of bending stiffness equivalence,a method for simplification throughout the total cross-section of submerged floating tunnel (SFT) is proposed to obtain the model for computation.
基于弯曲刚度等效原理,本文提出全截面弯曲刚度等效方法以简化得到水中悬浮隧道计算模型。
3) Effective Ratio of Bending Rigidity
弯曲刚度有效率
4) equivalent flexural rigidity
等效抗弯刚度
1.
The concept of the equivalent flexural rigidity of Functionally Gradient Materials (FGM)beams was presented for the first in this paper, and its formula was derived.
本文首次提出了梯度功能材料梁的等效抗弯刚度概念,并给出了其理论表达式。
5) bending rigidity
弯曲刚度
1.
Discussion on bending rigidity anisotropy of fabrics;
织物弯曲刚度各向异性探讨
2.
Bending deformation and bending rigidity of mechanical components;
机械构件的弯曲变形与弯曲刚度
3.
Approach to calculating bending rigidity of rubber-reinforced track of tractors and its experimental verification;
拖拉机橡胶钢筋履带弯曲刚度计算方法与试验验证
6) bending stiffness
弯曲刚度
1.
Applied investigation on the effects of bending stiffness of machine bed's simulating parts on its thermal geometrical precision;
机床床身模拟件的弯曲刚度对其热态几何精度影响规律的应用研究
2.
Analysing parameters of bending stiffness of FRP and designing its structure;
FRP弯曲刚度的参数分析与结构设计
3.
Engineering algorithm on bending stiffness of elastic rubber bushing of car suspension;
轿车悬架弹性橡胶衬套弯曲刚度的工程算法
补充资料:弯曲工艺的概念及弯曲件
1.弯曲工艺:是根据零件形状的需要,通过模具和压力机把毛坯弯成一定角度,一定形状工件的冲压工艺方法。
2.弯曲成形工艺在工业生产中的应用:应用相当广泛,如汽车上很多履盖件,小汽车的柜架构件,摩托车上把柄,脚支架,单车上的支架构件,把柄,小的如门扣,夹子(铁夹)等。
弯曲的基本原理:以V形板料弯曲件的弯曲变形为例进行说明。其过程为:
1. 凸模运动接触板料(毛坯)由于凸,凹模不同的接触点力作用而产生弯矩, 在弯矩作用下发生弹性变形,产生弯曲。
2. 随着凸模继续下行,毛坯与凹模表面逐渐靠近接触,使弯曲半径及弯曲力臂均随之减少,毛坯与凹模接触点由凹模两肩移到凹模两斜面上。(塑变开始阶段)。
3.随着凸模的继续下行,毛坯两端接触凸模斜面开始弯曲。(回弯曲阶段)。
4.压平阶段,随着凸凹模间的间隙不断变小,板料在凸凹模间被压平。
5. 校正阶段,当行程终了,对板料进行校正,使其圆角直边与凸模全部贴合而成所需的形状。
弯曲变形的特点: 弯曲变形的特点是:板料在弯曲变形区内的曲率发生变化,即
弯 曲半径发生变化。从弯曲断面可划分为三个区:拉伸区、压缩区和中性层。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条