1. College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, Sichuan, People’s Republic of China
2. School of Mechanical Engineering and Automation, Xihua University, Chengdu, Sichuan, People’s Republic of China
3. Tribology Research Institute, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan, People’s Republic of China
4. Department of Mechanical Engineering, Mississippi State University, Mississippi State, MS, USA