1. Graduate School of Engineering, Tokai University, Japan
2. Graduate School of Science & Technology, Tokai University, Japan
3. Faculty of Liberal Arts and Science, Tokyo City University, Japan
4. Kanagawa Institute of Industrial Science and Technology (KISTEC), Japan
5. Faculty of Engineering, Mie University, Japan
6. Laboratoire de Tribologie et Dymanique des Systemes, Ecole Centrale de Lyon, France