toothed wall

3-D FEM analysis of section distortion in bending process of the thin-walled rectangular tube;

薄壁矩形管弯曲过程截面畸变的三维有限元分析

A three-dimensional FEM model of rotary draw bending of thin-walled rectangular tube is built under the ABAQUS/Explicit environment.

基于动态显式有限元平台ABAQUS/Explicit,建立了3A21铝合金薄壁矩形管绕弯成形过程的三维有限元模型,模拟分析了芯棒伸出量对薄壁矩形管绕弯成形过程中失稳起皱的影响规律。

Based on the platform of ABAQUS/Explicit,a 3D-FE model of rotary draw bending process of 3A21 aluminum alloy thin-walled rectangular tube was established,and its reliability was validated.

基于ABAQUS/Explicit,建立了铝合金薄壁矩形管绕弯成形过程三维有限元模型,并对其可靠性进行了验证。

First-principles calculations within the generalized gradient approximation(GGA) are carried out on the energy gaps of both isolated zigzag SWNTs(7,0),(8,0),(9,0),(12,0) and their corresponding bundles in this paper.

本文采用基于广义梯度近似(GGA)的第一性原理方法,对锯齿型单壁碳纳米管束(7,0)、(8,0)、(9,0)、(12,0)及其相应的孤立管的能带结构和能隙进行理论计算。

In this paper,first-principles calculations within the generalized gradient approximation(GGA) are carried out on the band gaps of zigzag SWNTs(7,0)(8,0)(9,0) and(12,0).

本文采用基于广义梯度近似(GGA)的第一性原理方法,对锯齿型单壁碳纳米管(7,0)、(8,0)、(9,0)、(12,0)的能带结构和能隙进行理论计算。

Numerical Simulation of Wrinkling for Rotary Draw Bending Process of Thin-walled Rectangular Tube;

薄壁矩形管绕弯成形失稳起皱的数值模拟

Full-scale Experimental Investigation on Direct Welding and Cold-formed Thin-wall Rectangle Tubular Truss;

直接焊接的冷弯薄壁矩形管桁架的足尺试验研究

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

Test Research on the Eddy Current Detection of Rectangle Thin-walled Aluminum Welding Tube

矩形截面薄壁铝焊管涡流检测实验研究

Local Interactive Buckling Behavior of Cold-Formed Rectangular Tube;

冷弯薄壁矩形钢管板组相关屈曲性能研究

Manufacture Process of Ornamental Rectangular Thin Wall Welded Tube Made of 430 Stainless Steel

装饰用430不锈钢矩形薄壁焊管制造工艺

Modal Analysis of Radial Impact Buckling of Multirow Rectangular Thin-wall Steel Tube

排式矩形薄壁钢管径向冲击屈曲模态分析

Experimental Research on Hydraulic Characteristics of Wall Pressing Flow for Rectangle Sharp-crested Weir;

矩形薄壁堰贴壁流水力学特性的试验研究

Distortion of thin-walled bar with rectangular section taking account of shear deformation

考虑剪切变形的矩形截面薄壁杆件畸变分析

Numerical Analysis of Wall-thickness Thinning during the NC Tube Bending Process;

薄壁管数控弯曲成形壁厚变薄的数值分析

The Effect of Diaphragm Density on Distortion of Thin-Walled Bar with Rectangular Cross Section

横隔板间距对矩形截面薄壁杆件畸变的影响

Axial crashworthiness optimization of thin-walled rectangular beam based on finite element method

基于有限元法的矩形薄壁梁轴向耐撞性能优化

Construction Technology of Rectangular Hollow Thin-walled High Pier Body in Special Conditions

特殊条件下矩形薄壁空心高墩墩身施工技术

Research on Structure Optimization of Axial Crashworthiness of Thin-Walled Rectangular Beam

矩形截面薄壁梁轴向耐撞性的结构研究

Study on Glass Fiber Orientation of Injection into Rectangular Thin-Cavity Mold

注塑矩形薄壁型腔的玻纤取向分布研究

Study on Hydraulic Pressure Bulge Forming Theeory and Experiment of Thin Tube;

薄壁管液压胀形成形理论及试验研究

An approach to hydraulic bulging technique for large thin wall tee tubes

大型薄壁三通管件液压胀形技术探讨

The Study on Thin-Wall Tube Extrusion Forming Technology of Magnesium Alloy AZ31;

AZ31镁合金薄壁管材挤压成形工艺研究