1. Department of Mechanical Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
2. Daegu Mechatronics & Materials Institute, 32 Seongseogongdan-ro 11-gil, Dalseo-gu, Daegu 42714, Republic of Korea
3. Department of Mechanical and Aerospace Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea