1. School of Mechanical and Energy Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, P. R. China
2. College of Mechanical Vehicle Engineering, Hunan University, Changsha, 410082, Hunan, P. R. China
3. School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore