1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, China
2. School of Engineering Science, University of Chinese Academy of Sciences, Beijing 101408, China
3. Université de Grenoble, Laboratoire SIMAP, Groupe EPM, BP 75, 38402 Saint Martin d’Hères, France