1. Department of Mechanical Engineering, Ferdowsi University of Mashhad, P.O. Box 91775-1111, Azadi Square, Mashhad, Iran
2. State Key Laboratory for Strength and Vibration of Mechanical Structures, International Center for Applied Mechanics (ICAM), School of Aerospace Engineering, Xi’an Jiaotong University (XJTU), Xianning West Road, Beilin Disctrict, Xi’an 710049, China