Affiliation: | 1. School of Mechanical Engineering, Shandong University, Jinan City, Shandong 250061, People''s Republic of China;2. Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, People''s Republic of China;3. Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, USA |