1. Univ. Lyon, INSA-Lyon, LGEF EA 682, F-69621 Villeurbanne, France
2. Institute of Dynamics and Vibration Research, Leibniz Universität Hannover, 30823 Garbsen, Germany
3. State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China