摘要
随着海上机组叶片超长化、单机功率大型化以及开发项目场址水深逐渐增加,多桩导管架基础逐步成为深远海风机基础的首选方案。深水区多桩导管架基础由导管架结构和桩基基础组成,其结构形式复杂,受到多个因素的影响。文章研究了层数对导管架基础的静力、模态和疲劳损伤的影响,并且对比了不同层数下导管架基础的工程量。分析发现,层数越多,结构的位移变形更小,桩身应力也更小。此外,随着导管架结构层数的变化,整机频率有所降低,但3种层数情况下的整机频率仍相差不大,且导管架层数为3层时的结构质量最小。
With the ultra-long blades of offshore units,the large power of single units and the increasing water depth of development project sites,multi-pile jacket foundation has gradually become the first choice for fan foundation.The deepwater multi-pile jacket foundation is composed of the jacket structure and the pile foundation,and its structural form is complex,which is affected by many factors.The influence of layers on the static,modal and fatigue damage of the jacket foundation is studied,and the engineering quantity of the jacket foundation of different layers is compared.The analysis shows that the more layers there are,the less the displacement and deformation of the structure and the lower stress on the piles.As the number of layers of the jacket structure increases,the overall frequency of the machine decreases,but the overall frequency is still not significantly different,and the three-layer jacket structure is the lightest.
作者
李涛
罗琳
曹海
曾泳钦
江鸿
桂德勇
LI Tao;LUO Lin;CAO Hai;ZENG Yongqin;JIANG Hong;GUI Deyong(CSSC Haizhuang Windpower Co.,Ltd.,Chongqing 401123,China)
出处
《船舶工程》
CSCD
北大核心
2024年第S02期91-94,共4页
Ship Engineering
关键词
风力发电
导管架基础
优化设计
层数
wind power generation
jacket foundation
optimal design
number of layers
