1. Ph.D. Student, State Key Laboratory of Ocean Engineering, Dept. of Civil Engineering, Shanghai Jiao Tong Univ., 800 Dong Chuan Rd., Shanghai 200240, China.
2. Professor, State Key Laboratory of Ocean Engineering, Dept. of Civil Engineering, Shanghai Jiao Tong Univ., 800 Dong Chuan Rd., Shanghai 200240, China (corresponding author).
3. Assistant Professor, Engineering Research Center of Railway Environment Vibration and Noise, Ministry of Education, East China Jiao Tong Univ., Nanchang 330013, China.