1. Mechatronical Engineering College, Henan Univ. of Science and Technology, Luoyang 471003, China
2. Collaborative Innovation Center of Machinery Equipment, Advanced Manufacturing of Henan Province, Henan Univ. of Science and Technology, Luoyang 471003, China
3. Mechatronical Engineering College, Henan Univ. of Science and Technology, Luoyang, 471003, China (Corresponding author), e-mail: zhenc1992@163.com
4. Mechatronical Engineering College, Henan Univ. of Science and Technology, Luoyang, 471003, China