[Cheng, Junsheng; Peng, Yanfeng] Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China.
[Cheng, Junsheng; Peng, Yanfeng] Hunan Univ, Coll Mech & Vehicle Engn, Changsha 410082, Hunan, Peoples R China.
[Liu, Yanfei; Li, Xuejun; Peng, Yanfeng] Hunan Univ Sci & Technol, Hunan Prov Key Lab Hlth Maintenance Mech Equipmen, Xiangtan 411201, Peoples R China.
[Peng, Zhihua] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.