1996 ~ 2005, studying for undergraduate, postgraduate and doctoral degrees at Youshi University in China. Then he stayed at school as a lecturer. In June 2007, he was promoted to associate professor, selected as "Young Key Teacher" by National Scholarship Fund Committee and "Excellent Teacher" by Youshi University in China. In 2008, he served as the head of the Department of Safety Engineering at Youshi University in China. From September 20, 2009 to March 0, 2009, I went to NSF "Intelligent Maintenance Center" in the United States as a visiting scholar, engaged in mechanical risk analysis and fault prediction research.