近海风机基础-塔架结构体系振动监测与动力响应分析  

Vibration monitoring and dynamic response analysis of the base-tower about offshore wind turbine

作　　者：杨锋[1,2] 高季章[1,2] 张金接[1,2] 曾迪[1] 

机构地区：[1]中国水利水电科学研究院工程抗震研究中心,北京100038 [2]北京中水科水电科技开发有限公司,北京100038

出　　处：《中国水利水电科学研究院学报》2013年第2期87-93,共7页Journal of China Institute of Water Resources and Hydropower Research

基　　金：中国水利水电科学研究院专项"技集1035"

摘　　要：我国东部近海区域目前建设的风电场基本均采用桩基结构,桩基-塔架结构体系是典型的细长高耸结构,在复杂海洋环境载荷作用下具有明显的动力性质、随机性质和非线性性质。本文结合江苏响水近海试验风机长期的桩基础-塔架结构体系振动监测数据,分析了结构体系振动与风、浪等环境荷载的相关性,结果表明:振动加速度与风速均方差存在明显的相关关系,塔架顶部的振动加速度随均方差的增大而增加;建立模型进行了动力有限元计算分析,计算结果较好反映了响水近海试验风机不同工况的动力响应。研究成果具有一定的工程应用价值,可为海上风机基础设计提供参考。The pile foundation structure is used in most offshore wind farm of China. The structure of pile foundation and tower is a typical slender-tall structure. In the complex ocean environment loads, the structure system has obvious dynamic, stochastic and non-linear properties. This paper analyzed the correlation between structure vibration and environmental loads, such as wind, wave and other environmental loads. The paper concludes that the vibration acceleration at the top of the tower increases with the mean square deviation of wind according to long-term vibration monitoring data of Xiangshui offshore wind farm in Jiangsu province. The paper also developed a model for dynamic simulation and analysis, and the model calculation results reflect the response of offshore wind turbine power under different conditions. The above research results provide the reference for offshore wind turbine design.

关 键 词：近海风机 桩式基础 振动监测 响应分析 

分 类 号：TU435[建筑科学—岩土工程]