1. The State Key Laboratory of Heavy-duty and Express High-power Electric Locomotive, Central South University, Changsha, China
2. National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle, Central South University, Changsha, China
3. Key Laboratory of Traffic Safety on Track of Ministry of Education, Central South University, Changsha, China
4. College of Automotive and Mechanical Engineering, Changsha University of Science & Technology, Changsha, China