1. Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
2. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
3. School of Architecture and Civil Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
4. Department of Electric Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States