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