摘要
为了能够明确冰区风电基础结构的抗冰性能及抗冰设计的合理性,基于多年冰与结构现场观测及冰荷载的研究成果,明确适合于海上风电基础的冰荷载模型;采用ANSYS有限元数值模拟方法,选取拟建在渤海的风电基础结构,分析典型冰况下该类结构的冰振响应,并与风振响应相比对。结果表明,冰荷载和风荷载是冰区风机基础结构设计中的控制荷载,并且冰激振动较为显著。因此,冰区风电基础设计中应当考虑冰荷载的影响。
For offshore wind turbine foundation in ice region, there are less researches, and there is also no ice resistant design specification. The impact of sea ice on the wind turbine foundation is unknown Based on the research results of ice observation and the interaction between ice and structure, it is clear that the ice load model is suitable for offshore wind power. Using the finite element method with ANSYS, the ice induced vibration response of the structure is analyzed and compared with the wind vibration response. The results show that the ice load and wind load is the control load for ice region offshore wind turbine foundation design and check, and it also show that ice induced vibration is significant. So the influence of ice load should be considered in the design of wind turbine foundation in ice region.
出处
《船海工程》
北大核心
2016年第3期109-113,共5页
Ship & Ocean Engineering
基金
国家自然科学基金资助项目(51309046)
国家海洋公益性行业专项项目(201505019)
中国电力建设集团有限公司科技专项项目(SD2013-11)
基本科研业务费专项(DUT15RC(3)047)
国家海洋局海洋灾害预报技术研究重点实验室开放基金
关键词
冰区
风机基础
冰荷载
冰激振动
ice region
wind turbine foundation
ice load
ice induced vibration
