1997.7-2001.6:    Lecturer

                            School of Mechanical Engineering, Xi’an Jiaotong University

2001.7-2002.1:    Research Associate

                            Department of Automation & Computer-Aided Engineering
   The Chinese University of Hong Kong 

2001.7-2007.8:     Associate Professor

                             School of Mechanical Engineering, Xi’an Jiaotong University

2007.8 - Present:  Professor

                             School of Mechanical Engineering, Xi’an Jiaotong University

2011.2-2012.1:     Visiting Professor

                             School of Mechanical Engineering，The University of Western Australia

2017.7：               Faculty Teaching Development Program

                             Georgia Institute of Technology