1. School of Intelligent Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, China
2. Zhongyuan-Petersburg Aviation College, Zhongyuan University of Technology, Zhengzhou 451191, China
3. BIBA Bremer Institut für Produktion und Logistik GmbH, Faculty of Production Engineering, University of Bremen, 28359 Bremen, Germany
4. Faculty of Mechanical Engineering, Technische Universität Braunschweig, 38106 Braunschweig, Germany