1. Department of Optoelectronics, Chongqing University, Chongqing 400044, China
2. Smart Structures and Systems Laboratory, Department of Mechanical Engineering, Inha University, Incheon 402-751, Republic of Korea
3. Department of Aerospace Engineering, University of Maryland, College Park, MD 20742, USA
4. School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW2522, Australia
5. Department of Mechanical and Manufacturing University, Miami University, Oxford, OH 45056, USA
6. School of Civil Engineering, Harbin Institute of Technology, Harbin, China