1. College of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Street, Changsha 410004, China
2. Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China
3. State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, 932 South Lushan Street, Changsha 410083, China