1. State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu, People’s Republic of China
2. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, People’s Republic of China
3. State Key Laboratory of Mechanical Behavior and System, Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang, People’s Republic of China
4. The State Key Laboratory of Heavy-duty and Express High-power Electric Locomotive, Zhuzhou, People’s Republic of China