1) member initial curvature
杆件初始弯曲
1.
Nonlinear link element considering member initial curvature;
一种考虑杆件初始弯曲的非线性杆单元
2) initial bending of members
杆件初弯曲
1.
Based on commercial finite element software ANSYS and self-compiled pre-processing and post-processing programs,the stability of single-layer reticulated domes which include and do not include the effect of initial bending of members are compared.
基于通用有限元软件ANSYS及自编的前后处理程序,针对是否考虑杆件初弯曲的单层球面网壳结构进行对比分析。
3) bars initial bending
杆件的初弯曲
4) initial bending
初始弯曲
1.
Width-thickness ratio of steel plates in concrete-filled rectangular thin-walled steel tube columns subjected to axis force with initial bending
考虑初始弯曲矩形薄壁钢管砼柱管壁屈曲分析
2.
The dynamical characteristics of a maneuvering rotor with initial bending running at a constant speed were studied.
研究了飞行器内等速运行的初始弯曲转子的动力学特性 ,分析了飞行器机动飞行对转子系统振动响应的影响 。
3.
A new method of reducing the peak vibration amplitude of a rotor with initial bending is studied in the paper.
本文从理论上研究了控制初始弯曲引起的转子振动幅值的一种新方法。
5) initial permanent deflection
初始弯曲
1.
A rotor-stator rubbing Jeffcott model of a rotor system with mass unbalance including mass eccentricity and initial permanent deflection is set up and the corresponding governing equation of motion is derived by d’Alembert principle.
建立了一个具有初始弯曲的不平衡转子模型,通过d'Alembert原理推导了振动方程。
6) bending bar
杆件弯曲
1.
Drilling derrick that working many years often has the defect of bending bar.
服役多年的钻机井架常会出现局部杆件弯曲现象。
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