1. Zhongshan Institute, University of Electronic Science and Technology of China, Zhongshan 528402, China
2. Institute of Reliability Engineering, School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu 610051, China
3. Department of Systems Engineering and Engineering Management, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
4. School of Mechanical and Electrical Engineering, Soochow University, Suzhou 215021, China