1. School of Traffic and Transportation Engineering, Dalian Jiaotong University, Dalian, People’s Republic of China
2. CRRC Qingdao Sifang Co. Ltd, Qingdao, People’s Republic of China
3. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian, People’s Republic of China