1. Key Laboratory of Railway Industry on Intelligent Operation and Maintenance for Locomotive and Vehicle, East China Jiaotong University, Nanchang 330013, China
2. Key Laboratory of Conveyance Equipment, Ministry of Education, East China Jiaotong University, Nanchang 330013, China
3. Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, Zhejiang Normal University, Jinhua 321005, China
4. Tribology Research Institute, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China