naa a22 4500 510790631 CHVBK 20180411083318.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s12289-011-1076-1 doi (NATIONALLICENCE)springer-10.1007/s12289-011-1076-1 Li Enying School of Logistics, Central South University of Forestry and Teleology, Shaoshan South Road, No. 498, 410004, Changsha, Hunan, People's Republic of China aut Reduction of springback by intelligent sampling-based LSSVR metamodel-based optimization [Elektronische Daten] [Enying Li] This paper deals with the variable blank holder force in sheet metal forming in order to reduce springback effects after forming. A structural risk minimization principle-based metamodeling technique, least square support vector regression (LSSVR) method is applied to optimization. In order to improve the efficiency, an intelligent sampling strategy proposed by Wang et al. (Mater Des 30:1468-1479, 2009a) is integrated with the LSSVR. Therefore, the proposed strategies establish an adaptive metamodeling optimization system. The optimization procedure can be carried out automatically. To valid the flexibility of this system, the presented method is used to optimize the variable blank force parameters of the models from NUMISHEET'96 and torsion rail model. Compared with other popular metamodel-based optimization methods, the test results demonstrate the potential capability for nonlinear engineering problems. Springer-Verlag France, 2011 Springback nationallicence LS-SVR nationallicence Intelligent sampling nationallicence Metamodeling nationallicence International Journal of Material Forming Springer-Verlag 6/1(2013-03-01), 103-114 1960-6206 6:1<103 2013 6 12289 https://doi.org/10.1007/s12289-011-1076-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12289-011-1076-1 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Li Enying School of Logistics, Central South University of Forestry and Teleology, Shaoshan South Road, No. 498, 410004, Changsha, Hunan, People's Republic of China aut NATIONALLICENCE 773 0- International Journal of Material Forming Springer-Verlag 6/1(2013-03-01), 103-114 1960-6206 6:1<103 2013 6 12289 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer