〇(D)Danyang Danyang Li¹, Umamasheswari rajagopalan², Y. Sanath. K. De Silva^1,3, Hirofumi Kadono¹ (1.Graduate School of Science and Engineering, Saitama University, Japan, 2.Department. of Mechanical Engineering, Shibaura Institute of Technology, Japan, 3.Department of Mechanical and Manufacturing, University of Ruhuna, Sri Lanka)