Wind, wave and earthquake responses of offshore wind turbine on monopile foundation in clay
Wind, wave and earthquake responses of offshore wind turbine on monopile foundation in clay
复制标题
粘土单桩基础上海上风力发电机的风、浪和地震响应
DOI：
10.1016/j.soildyn.2018.04.028
复制
发表时间：
2018
影响因子：
4
通讯作者：
Chengshun Xu
中科院分区：
文献类型：
--
作者：
Piguang Wang;Mi Zhao;Xiuli Du;Jingbo Liu;Chengshun Xu
研究了支承在粘性土地基上的海上风力涡轮机在风、浪和地震作用下的动力响应。基于开源软件平台OpenSees，建立了该系统的三维有限元模型。塔体和塔体采用梁单元模拟，桩土界面采用非线性Winkler地基模型，桩水界面采用水动力附加质量模型。风、波浪和地震作用作为荷载施加在系统上。研究了风速、诱导因子、波浪周期、地面峰值加速度和地基参数等参数对体系动力响应的影响。结果表明，在海上风力涡轮机的设计中，有必要考虑风、波浪和地震的综合作用。
This paper investigates the dynamic responses of offshore wind turbine (OWT) supported on monopile foundation in clay subjected to wind, wave and earthquake actions. Based on the open-source software platform OpenSees, a three-dimensional finite model of the system is developed. The tower and monopile is modeled using beam element, the pile-soil interface behavior using nonlinear Winkler foundation approach, and the pile-water interface using hydrodynamic added mass. The wind, wave and earthquake actions are applied as loadings on the system. The effects of several parameters, such as wind velocity, induction factor, wave period, peak ground acceleration, and soil parameters on the dynamic responses of the system are studied. The results indicate that it is necessary to consider the combination of wind, wave and earthquake actions in the design of offshore wind turbine.