Sequential multi-objective optimization of thin-walled aluminum alloy tube bending under various uncertainties

2017 ◽  
Vol 27 (3) ◽  
pp. 608-615 ◽  
Author(s):  
Heng LI ◽  
Jie XU ◽  
Heng YANG ◽  
He YANG ◽  
Guang-jun LI
Keyword(s):  
Aluminum Alloy ◽  
Multi Objective Optimization ◽  
Tube Bending ◽  
Multi Objective ◽  
Alloy Tube ◽  
Thin Walled ◽  
Aluminum Alloy Tube

A Multi-Objective Optimization Method for Thin-Walled Tube NC Bending

2011 ◽  
Vol 213 ◽  
pp. 383-387
Author(s):  
Jie Xu ◽  
He Yang ◽  
Heng Li
Keyword(s):  
Uniform Design ◽  
Optimization Method ◽  
Maximum Height ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Thin Walled Tube ◽  
Design Values ◽  
Thin Walled ◽  
Aluminum Alloy Tube ◽  
Nc Bending

A multi-objective optimization method for thin-walled tube NC bending is presented. Firstly, a half-symmetry 3D elastic-plastic FEM model is established based on the initial design values, applying the dynamic explicit code ABAQUS/Explicit. Secondly, virtual orthogonal arrays are designed to optimize friction coefficients, with minimizing the maximum wall-thinning ratio, the maximum cross section distortion ratio and the maximum height of wrinkling waves as the multi-objectives. Lastly, the mandrel radius is optimized by sequential quadratic programming with approximate regressive models fit from uniform design values in the allowed range. Application is put forward for Ф50×1×100 (tube outside diameter ×tube wall thickness × central line bending radius) and Ф100×1.5×200 aluminum alloy tube bending. It is proved that the forming quality has been improved by the method.

Macro‑meso scale modeling and simulation of surface roughening: Aluminum alloy tube bending

2018 ◽  
Vol 144 ◽  
pp. 696-707 ◽  
Author(s):  
Zhenyong Feng ◽  
Heng Li ◽  
Jingchao Yang ◽  
Hang Huang ◽  
Guangjun Li ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Modeling And Simulation ◽  
Surface Roughening ◽  
Tube Bending ◽  
Scale Modeling ◽  
Alloy Tube ◽  
Aluminum Alloy Tube ◽  
Meso Scale

scholarly journals ‘Size effect’ related bending formability of thin-walled aluminum alloy tube

2013 ◽  
Vol 26 (1) ◽  
pp. 230-241 ◽  
Author(s):  
Li Heng ◽  
Yang He ◽  
Zhang Zhiyong ◽  
Wang Zekang
Keyword(s):  
Aluminum Alloy ◽  
Size Effect ◽  
Alloy Tube ◽  
Thin Walled ◽  
Aluminum Alloy Tube
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