1. Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, People’s Republic of China
2. National Demonstration Center for Experimental Mechanical and Electrical Engineering Education, Tianjin University of Technology, Tianjin, People’s Republic of China
3. Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin, People’s Republic of China