1. School of Physics and Engineering ITMO University St. Petersburg 197101 Russia
2. Chair of Vibroacoustics of Vehicles and Machines Technical University of Munich Garching b. 85748 München Germany
3. School of Engineering and Information Technology University of New South Wales Northcott Drive Canberra Australian Capital Territory 2600 Australia
4. Harbin Engineering University Harbin Heilongjiang 150001 P. R. China