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[1] Zhang Puyang, , Ding Hongyan, et al. Towing characteristics of large-scale composite bucket foundationfor offshore wind turbines [J]. Journal of Southeast University (English Edition), 2013, 29 (3): 300-304. [doi:10.3969/j.issn.1003-7985.2013.03.013]
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Towing characteristics of large-scale composite bucket foundationfor offshore wind turbines()
海上风电大尺度复合筒型基础拖航特性分析
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
29
Issue:
2013 3
Page:
300-304
Research Field:
Electrical Engineering
Publishing date:
2013-09-20

Info

Title:
Towing characteristics of large-scale composite bucket foundationfor offshore wind turbines
海上风电大尺度复合筒型基础拖航特性分析
Author(s):
Zhang Puyang1 2 3 Ding Hongyan1 2 3 Le Conghuan1 Huang Xu3
1State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
2Key Laboratory of Coast Civil Structure Safety of Ministry of Education, Tianjin University, Tianjin 300072, China
3School of Civil Engineering, Tianjin University, Tianjin 300072, China
张浦阳1 2 3 丁红岩1 2 3 乐丛欢1 黄旭3
1天津大学水利工程仿真与安全国家重点实验室, 天津300072; 2天津大学滨海土木工程结构与安全教育部重点实验室, 天津300072; 3天津大学建筑工程学院, 天津300072
Keywords:
large-scale composite bucket foundation towing MOSES offshore wind turbines
大尺度复合筒型基础 拖航 MOSES 海上风电
PACS:
P751
DOI:
10.3969/j.issn.1003-7985.2013.03.013
Abstract:
In order to study the towing dynamic properties of the large-scale composite bucket foundation, the hydrodynamic software MOSES is used to simulate the dynamic motion of the foundation towed to the construction site. The MOSES model with the prototype size is established as the water draft of 5 and 6 m under the environmental conditions on site. The related factors such as towing force, displacement, towing accelerations in six degrees of freedom of the bucket foundation and air pressures inside the bucket are analyzed in detail. In addition, the towing point and wave conditions are set as the critical factors to simulate the limit conditions of the stable dynamic characteristics. The results show that the large-scale composite bucket foundation with reasonable subdivisions inside the bucket has the satisfying floating stability. During the towing process, the air pressures inside the bucket obviously change little and it is found that the towing point at the waterline is the most optimal choice. The characteristics of the foundation with the self-floating towing technique are competitive for saving lots of cost with few of the expensive types of equipment required during the towing transportation.
为了研究海上大尺度复合筒型基础的拖航动力特性, 采用水动力学软件MOSES模拟海上风电复合筒型基础结构现场气浮拖航的运动情况.模型采用基础原型尺寸, 通过模拟现场海域5和6 m吃水条件下的基础拖航情况, 详细分析了复合筒型基础拖缆力、位移、加速度、筒内气压力等相关动力特性因素.同时, 通过变换关键变量, 分析了不同的拖缆点和波浪条件对基础极限动力特性的影响.结果表明:具有合理分舱的复合筒型基础具有稳定的自浮拖航浮运特性, 拖航过程中筒内气体压力变化较小, 拖缆点在水线附近拖航阻力最小.复合筒型基础可自浮拖航的特性使其运输施工过程不需要使用大型设备, 可大大节约成本, 具有很强的竞争性.

References:

[1] Ding Hongyan, Lian Jijian, Li Aidong, et al. One-step-installation of offshore wind turbine on large-scale bucket-top-bearing bucket foundation[J]. Transactions of Tianjin University, 2013, 19(3): 188-194.
[2] Lian Jijian, Ding Hongyan, Liu Run, et al. Research report on key technology of the CBF-3-150 composite bucket foundation for offshore wind turbines[R]. Tianjin: Tianjin University, 2010.(in Chinese)
[3] Lian Jijian, Sun Liqiang, Zhang Jinfeng, et al. Bearing capacity and technical advantages of composite bucket foundation of offshore wind turbines [J]. Transactions of Tianjin University, 2011, 17(2): 132-137.
[4] Ding Hongyan, Li Zengzhi, Lian Jijian, et al. Soil reinforcement experiment inside large-scale bucket foundation in muddy soil [J]. Transactions of Tianjin University, 2012, 18(3): 168-172.
[5] Zhang Puyang, Ding Hongyan, Le Conghuan. Test on the dynamic response of the offshore wind turbine structure with the large-scale bucket foundation [J]. Procedia Environmental Sciences, 2012, 12(Part B):856-863.
[6] Lian Jijian, Ding Hongyan, Zhang Puyang, et al. Design of large-scale prestressing bucket foundation for offshore wind turbines [J]. Transactions of Tianjin University, 2012, 18(2): 79-84.
[7] Ding Hongyan, Zhang Puyang, Le Conghuan. Construction and installation technique of large-scale top-bearing bucket foundation for offshore wind turbine[C]//Proceedings of the 2nd International Conference on Mechanic Automation and Control Engineering. Hohhot, Inner Mongolia, China, 2011: 7234-7237.
[8] Ultramarine Inc. Reference manual for MOSES [S]. Houston, TX, USA: Ultramarim Inc, 2009.
[9] Bie Shean, Ji Chunning, Ren Zengjin, et al. Study on floating properties and stability of air floated structures[J]. China Ocean Engineering, 2002, 16(2):263-272.
[10] Bie Shean, Xu Yanjie, Wang Guanglun. Study on floating state and kinetic properties of the air floated structures[J]. Journal of Tsinghua University: Science and Technology, 2001, 41(11): 123-126.(in Chinese)
[11] Bie Shean, Zhao Chongjiu, Ji Chunning, et al. Stability analysis of the bucket foundation platform transported by air floating[J]. Journal of Tianjin University, 2002, 35(2):222-226.(in Chinese)

Memo

Memo:
Biography: Zhang Puyang(1978—), male, doctor, lecturer, zpy_td@163.com.
Foundation items: The National Natural Science Foundation of China(No.51109160), the National High Technology Research and Development Program of China(863 Program)(No.2012AA051705), the International S&T Cooperation Program of China(No.2012DFA70490), the Natural Science Foundation of Tianjin(No.13JCQNJC06900, 13JCYBJC19100).
Citation: Zhang Puyang, Ding Hongyan, Le Conghuan, et al. Towing characteristics of large-scale composite bucket foundation for offshore wind turbines[J].Journal of Southeast University(English Edition), 2013, 29(3):300-304.[doi:10.3969/j.issn.1003-7985.2013.03.013]
Last Update: 2013-09-20