1. School of Mechanical Engineering, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an 710049, China
2. State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an 710049, China
3. School of Aerospace Engineering, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an 710049, China