不确定因素下薄壁铝合金管弯曲的多目标连续稳健优化设计

Saved in:
Bibliographic Details
Published in中国有色金属学报：英文版 Vol. 27; no. 3; pp. 608 - 615
Main Author 李恒;许杰;杨恒;杨合;李光俊
Format Journal Article
LanguageEnglish
Published 2017
Subjects
稳健优化;管材弯曲;不确定因素;铝合金;多目标优化
Online AccessGet full text

Cover

More Information
Bibliography:43-1239/TG
Combining the design of experiments(DOE)and three-dimensional finite element(3D-FE)method,a sequential multiobjectiveoptimization of larger diameter thin-walled(LDTW)Al-alloy tube bending under uncertainties was proposed andimplemented based on the deterministic design results.Via the fractional factorial design,the significant noise factors are obtained,viz,variations of tube properties,fluctuations of tube geometries and friction.Using the virtual Taguchi’s DOE of inner and outerarrays,considering three major defects,the robust optimization of LDTW Al-alloy tube bending is achieved and validated.For thebending tools,the robust design of mandrel diameter was conducted under the fluctuations of tube properties,friction and tubegeometry.For the processing parameters,considering the variations of friction,material properties and manufacture deviation ofmandrel,the robust design of mandrel extension length and boosting ratio is realized.
robust optimization; tube bending; uncertainty; aluminum alloy; multi-objective optimization
ISSN:1003-6326