2. Vice President, Nanjing University of Aeronautics and Astronautics (NUAA) from 1998 to 2001;

3. Assistant to President in Academics and Faculty, NUAA in 1997;

4. Visiting Professor, Department of Mechanical Engineering and Material Science, School of Engineering, Duke University, USA from 1996 to 1997;

5.Director of Institute of Vibration Engineering Research (IVER), NUAA from 1994 to 1996;

6. Professor of Applied Mechanics, IVER, NUAA since 1994;

7. Humboldt Research Fellow, Institute B of Mechanics, University of Stuttgart, Germany from 1992 to 1994;

8. Associate Professor of Applied Mechanics, IVER, NUAA from 1990 to 1992;

9. Lecturer of Applied Mechanics, IVER, NUAA from 1988 to 1990.