[1] Northwestern Polytech Univ, Key Lab Contemporary Design & Integrated Mfg Tech, Minist Educ, Xian 710072, Shaanxi, Peoples R China
[2] Linkoping Univ, Dept Management & Engn, SE-58183 Linkoping, Sweden
[3] Univ Vaasa, Dept Prod, PL 700, Vaasa 651016, Finland
[4] Honghe Univ, Dept Mech Engn, Mengzi 661199, Yunnan, Peoples R China