中文摘要：

Guo Rui, born in 1980. He is currently an associate professor in mechatronic engineering at Yanshan University, China. He received his Ph. D degree from the Department of Mechanical Engineering of Yanshan University, Qinhuangdao, China, in 2010. His research interests include innovative design and reliability of complex electromechanical products.To whom correspondence should be addressed. E-mail： guorui@ysu.edu.cn