| 摘要: |
| 针对近海风电桩基础的动力学问题,结合实际工程,采用数值软件对独桩基础、导管架基础和高桩墩台基础进行模态和时程分析,得到3种基础的振型图、固有频率、周期及其位移响应曲线.通过分析可知,经过1个周期后3种基础进入稳态振动;同时发现高桩墩台基础的动力放大系数高于独桩基础和导管架基础,但是放大后的位移仍小于后两者,约为它们的一半,因此从风电基础对变形要求的角度考虑,高桩墩台是最理想的近海风电基础. |
| 关键词: 风电机桩基础 动力学分析 数值模拟 |
| DOI： |
| 分类号:TU473.1 |
| 基金项目:连云港徐圩港区防波堤新型结构研究 |
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| Dynamic analysis of offshore wind turbine pile foundation |
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LI Wu
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LI Wu (CCCC Third Harbor Consultants Co.,Ltd,Shanghai 200032,China)
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| Abstract: |
| According to the dynamic problems of offshore wind turbine pile foundation,modal analysis and time history analysis are respectively carried out on the single-pile,offshore jacket and high-pile pier by use of numerical software based on practical engineering.Their modal maps,natural frequencies,periods and displacement time curves are obtained.The three foundations are in a steady state vibration after one cycle period by further analysis.The dynamic magnification factor of high-pile pier is greater than th... |
| Key words: wind turbine pile foundation dynamic analysis numerical simulation |
