1. State Key Laboratory of Tribology, Department of Mechanical Engineering Tsinghua University Beijing 100084 China
2. Beijing Lab of Precision/Ultra‐Precision Manufacture Equipment and Control Tsinghua University Beijing 100084 China
3. College of Mechanical Engineering and Applied Electronics Technology Beijing University of Technology Beijing 100124 China
4. Locomotive and Car Research Institute China Academy of Railway Sciences Corporation Limited Beijing 100081 China
5. Logistics Engineering College Shanghai Maritime University Shanghai 201306 China
6. Hubei Agricultural Machinery Engineering Research and Design Institute Hubei University of Technology Wuhan 430068 China
7. State Key Laboratory of Reliability and Intelligence of Electrical Equipment, College of Mechanical Engineering HeBei University of Technology Tianjin 300401 China