1. School of Mechanical Engineering and Automation, Northeastern University, Shenyang, P. R. China
2. Key Laboratory of Dynamics Reliability of Mechanical Equipment, Liaoning Province, Northeastern University, Shenyang, P. R. China
3. School of Mechanical Engineering, Yanshan University, Qinhuangdao, P. R. China
4. The Key Laboratory of Metallurgical Equipment and Control of Ministry of Education, Wuhan University of Science and Technology, Wuhan, P. R. China