[Hu, Lin] Changsha Univ Sci & Technol, Sch Automot & Mech Engn, Changsha 410114, Peoples R China.
[Ou, Jian] Changsha Univ Sci & Technol, Hunan Prov Key Lab Safety Design & Reliabil Techn, Changsha 410114, Peoples R China.
[Huang, Jing] Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Peoples R China.
[Cao, Dongpu; Chen, Yimin] Univ Waterloo, Dept Mech & Mechatron Engn, Waterloo, ON N2L 3G1, Canada.
[Chen, Yimin] Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Peoples R China.