1. Institute of Vibration Engineering, Northwestern Polytechnical University, Xi’an 710072, China
2. School of Astronautics, Harbin Institute of Technology, Harbin 150001, China
3. State Key Laboratory Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
4. School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China