TY - GEN
T1 - A multi-objective optimization method for thin-walled tube NC bending
AU - Xu, Jie
AU - Yang, He
AU - Li, Heng
PY - 2011
Y1 - 2011
N2 - 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 Φ50×1×100 (tube outside diameter ×tube wall thickness × central line bending radius) and Φ100×1.5×200 aluminum alloy tube bending. It is proved that the forming quality has been improved by the method.
AB - 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 Φ50×1×100 (tube outside diameter ×tube wall thickness × central line bending radius) and Φ100×1.5×200 aluminum alloy tube bending. It is proved that the forming quality has been improved by the method.
KW - FEM
KW - Multi-objective optimization
KW - NC bending
KW - Orthogonal arrays
KW - Sequential quadratic programming
KW - Thin-walled tube
UR - https://www.scopus.com/pages/publications/79952366254
U2 - 10.4028/www.scientific.net/AMR.213.383
DO - 10.4028/www.scientific.net/AMR.213.383
M3 - 会议稿件
AN - SCOPUS:79952366254
SN - 9783037850619
T3 - Advanced Materials Research
SP - 383
EP - 387
BT - Advanced Materials Research
T2 - 2011 International Conference on Advanced Material Research, ICAMR 2011
Y2 - 21 January 2011 through 23 January 2011
ER -