Dynamic responses of K-type and inverted-K-type jacket support structures for offshore wind-turbines

作     者：廖迎娣 郭梦圆 王娜 侯利军 陈达 LIAO Ying-di;GUO Meng-yuan;WANG Na;HOU Li-jun;CHEN Da

作者机构：Key Laboratory of Coastal Disaster and Defence Ministry of Education (Hohai University) Nanjing 210098 China College of Harbor Coastal and Offshore Engineering Hohai University Nanjing 210098 China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2017年第24卷第4期

页      面：947-956页

核心收录：

学科分类：0810[工学-信息与通信工程] 080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Project(51509081)supported by the National Natural Science Foundation of China Project(B12032)supported by the “111 Project” of China Projects(BK20150037,BK20150811)supported by the Natural Science Foundation of Jiangsu Province,China 

主　　题：jacket support structure K-type inverted-K-type foundation dynamic responses 

摘      要：The jacket structure has become more popular as the offshore wind-turbine support structure. K-type and inverted-K-type jacket support structures have superior potential due to their fewer joints and lower cost of manufacture and installation. A numerical study was presented on the dynamic responses of K-type and inverted-K-type jacket support structures subjected to different kinds of dynamic load. The results show that the inverted-K-type jacket structure has higher natural frequencies than the K-type. The wave force spectrum response shows that the maximum displacement of the K-type jacket structure is larger than that of the inverted-K-type. The time-history responses under wind and wave-current load indicate that the inverted-K-type jacket structure shows smaller displacement and stress compared with the K-type, and presents different stress concentration phenomena. The dynamic responses reveal that the inverted-K-type of jacket support structure has greater stiffness and superior mechanical properties, and thus is more applicable in the offshore area with relatively deep water.