廖迎娣,王露,张鹏程,陈达

• 1:河海大学海岸灾害及防护教育部重点实验室
• 2:河海大学长江保护与绿色发展研究院
• 3:河海大学港口海岸与近海工程学院
• 4:中国电建集团华东勘测设计研究院有限公司

摘要(Abstract)：

为研究海上风电结构在复杂的海洋环境中承受环境荷载(风、波、冰、流)的联合作用时,结构产生的剧烈的动力响应问题。文章以三脚架基础海上风电结构为研究对象,采用ANSYS有限元软件建立其整体模型并进行荷载(风、波、流和风、冰、流)联合作用下的静力校核,通过对环境荷载联合作用下的三脚架基础海上风电结构进行瞬态分析,掌握其动力响应的特性及规律。结果表明:三脚架基础结构的一、二阶自振频率均为0.285Hz,在所选风机允许的频率范围内,可以保证整体结构不会与风机转动发生共振;风荷载在风、波、流荷载联合作用下主导控制结构响应的稳态波动,冰荷载在风、冰、流荷载联合作用下主导控制结构的稳态振动过程;塔筒顶端呈现的位移和加速度响应均远大于三脚架基础顶端;环境荷载联合作用下结构动力响应是环境荷载单独作用下动力响应叠加的结果。

关键词(KeyWords)： ANSYS软件;三脚架基础海上风电;环境荷载联合作用;动力响应

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51779087);; 中央高校基本科研业务费专项资金(2018B43014);; 高等学校学科创新引智计划(B12032)

作者(Author): 廖迎娣,王露,张鹏程,陈达

DOI: 10.13928/j.cnki.wrahe.2021.03.024

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