1. State Key Laboratory of Robotics and System (HIT), China
2. Parallel Robot and Mechatronic System Laboratory of Hebei Province, Yanshan University, Qinhuangdao, Hebei, China
3. Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of National Education, Yanshan University, Qinhuangdao, Hebei, China
4. School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China
5. College of Information Science and Engineering, Yanshan University, China