Hongrui Cao, male, born in 1982, professor, doctoral supervisor. Humboldt Scholar of Germany, winner of outstanding Youth Fund of National Natural Science Foundation of China (2019), Research Affiliate of International Academy of Production Engineering (CIRP) and Young Science and Technology Star of Shaanxi Province. He is now working at Xi 'an Jiaotong University. Standing director of Rotor Dynamics Professional Committee of Chinese Society of Vibration Engineering, Director of Fault Diagnosis Professional Committee, standing director of Shaanxi Vibration Engineering Society, Youth editorial board of "Journal of Vibration Engineering" and "Mechanical Science and Technology". Editorial Board, International Journal of Mechatronics and Manufacturing Systems and Machines.

He has been engaged in the research of fault mechanism analysis, fault diagnosis and prediction of intelligent spindle rotor bearing system. He has presided over 1 national Key RESEARCH and development Program project, 4 National Natural Science Foundation of China projects, more than 10 major special projects, assembly pre-research and other projects, and won the first prize of Science and technology of Universities in Shaanxi Province in 2020 (the first accomplished person). He has published more than 80 journal and conference papers, of which more than 50 have been indexed by SCI, and he cited more than 2300 times in SCI. 4 papers have been selected as ESI highly cited papers, and won the Best Paper Award of Int J Mach Tool Manu Journal (2019), an authoritative journal in the field of mechanical manufacturing.