1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering Hunan University Changsha P.R. China
2. School of Electrical, Mechanical and Mechatronic Engineering University of Technology Sydney Sydney New South Wales Australia
3. College of Electrical and Information Engineering Hunan University Changsha P.R. China
4. Structural Dynamics and Acoustic Systems Laboratory University of Massachusetts Lowell Lowell Massachusetts USA