Affiliation: | 1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China2. College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China3. Hunan Provincial Key Laboratory of Health Maintenance for Mecha- nical Equipment, Hunan University of Science and Technology, Xiangtan 411201, China4. School of Mathematics and Physics, University of South China, Hengyang 421001, China |