作者机构:[1]School of Mechaniecal & Automotive Engineering, South ChinaUniversity of Technology, Guangzhou, 510640
相关基金:The authors wish to thank the financial support for this research from National Natural Science Foundation of China ( No. 50705030) , Natural Science Foundaiion of Guangdong Province of China (No. 9151008019000008 ) and the Fundamental Research Funds for the Central Universities (No. 2009ZM0318).