1. Ph.D Student, Mechanical Engineering, Changchun Univ. of Technology, Changchun 130000, China.
2. Professor, Dept. of Control Engineering, Changchun Univ. of Technology, Changchun 130000, China (corresponding author).
3. Dept. of Control Engineering, Changchun Univ. of Technology, Changchun 130000, China.
4. Professor, Dept. of Control Engineering, Changchun Univ. of Technology, Changchun 130000, China.