1. Department of Mechanical Engineering, Graduate School of Chosun University, 309 Pilmundaero, Gwangju 61452, Republic of Korea
2. Department of Mechanical Engineering, Chosun University, 309 Pilmundaero, Gwangju 61452, Republic of Korea
3. Korea Automotive Technology Institute, 303 Pungse-ro, Cheonan 31214, Republic of Korea