1. School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
2. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
3. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China; School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China