• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Soil Dynamics and Earthquake Engineering >Dynamic analysis of an offshore wind turbine under random wind and wave excitation with soil-structure interaction and blade tower coupling
【24h】

Dynamic analysis of an offshore wind turbine under random wind and wave excitation with soil-structure interaction and blade tower coupling

机译：土与结构相互作用及叶片塔耦合的随机风浪激励下的海上风力发电机组动力分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study investigates the dynamic response of a 5 MW offshore wind turbine with monopile foundation subjected to wind and wave actions. The work includes dynamic interaction between the monopile and the underlying soil subjected to realistic offshore random wind and wave loading modeled using Von karman spectrum and Pierson Moskowitz spectrum respectively. The study also incorporates the effect of blade tower coupling in the analysis. The offshore wind turbine tower is modeled herein as a multi-degree of freedom system (MDOF) and it comprises of a rotor blade system, a nacelle, and a flexible tower. The mass of the rotor, blade, and nacelle are lumped at the top of the tower for simplicity. Separately, the effect of the rotation of blades has also been incorporated in the work. The rotational effect of the blades is taken into account considering shape filters using von Karman spectrum. The soil-structure interaction effect at the foundation level is modeled using equivalent spring-dashpot model for embedded foundations. The results are studied in time as well as frequency domain for both wind and wave loading. It has been observed that soil structure interaction effect greatly alters the response of the offshore wind turbine structure not only in the parked condition but also in operational conditions when blade tower coupling is also included. The effect of blade tower coupling and SSI on the response of the structure are observed more coherently in the case of wave induced loading.
机译：这项研究调查了5兆瓦单桩基础海上风电机组在风和波浪作用下的动力响应。这项工作包括单桩与下层土壤之间的动态相互作用，这些下层土壤分别受到分别采用冯·卡曼光谱和皮尔森·莫斯科维兹光谱建模的现实海上随机风和波浪载荷。该研究还将叶片塔式联轴器的影响纳入分析。海上风力涡轮机塔架在本文中被建模为多自由度系统（MDOF），并且其包括转子叶片系统，机舱和柔性塔架。为简化起见，转子，叶片和机舱的质量都集中在塔架的顶部。单独地，叶片旋转的影响也已经被纳入工作中。考虑使用von Karman光谱的形状过滤器，可以考虑叶片的旋转效果。使用等效弹簧-冲量模型对嵌入式基础进行了基础层的土-结构相互作用效应建模。在风和波浪载荷下，都在时间和频域上对结果进行了研究。已经观察到，土壤结构的相互作用效应不仅在停泊状态下而且在还包括叶片塔式联轴器的运行条件下极大地改变了海上风力涡轮机结构的响应。在波浪感应载荷的情况下，可以更连贯地观察到叶片塔架耦合和SSI对结构响应的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号