DU, CHENGXIN, SCHOOL OF MECHANICAL ENGINEERING, NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY, NANJING 210094, CHINA
DU, FANGZHU, SCHOOL OF CIVIL ENGINEERING, DALIAN UNIVERSITY OF TECHNOLOGY, DALIAN 116024, CHINA / STATE KEY LABORATORY OF COASTAL AND OFFSHORE ENGINEERING, DALIAN UNIVERSITY OF TECHNOLOGY,DALIAN 116024, CHINA