[1] Department of Engineering Mechanics, North University of China, Taiyuan,030051, China
[2] School of Instrument and Electronics, North University of China, Taiyuan,030051, China
[3] Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an,710072, China
[4] The Institute of Sound and Vibration Research, University of Southampton, Southampton,SO171BJ, United Kingdom