Analysis on Strength and Vibration of Support Structure for Monopile Foundation Offshore Wind Turbine

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Analysis on Strength and Vibration of Support Structure for Monopile Foundation Offshore Wind Turbine

更新时间：2025-07-09

- Analysis on Strength and Vibration of Support Structure for Monopile Foundation Offshore Wind Turbine
- Vol. 46, Issue 7, Pages: 26-31(2012)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK83
- Online First：10 July 2012，
  
  Published：2012
- 稿件说明：
移动端阅览
Analysis on Strength and Vibration of Support Structure for Monopile Foundation Offshore Wind Turbine[J]. 2012, 46(7): 26-31.
DOI：

Analysis on Strength and Vibration of Support Structure for Monopile Foundation Offshore Wind Turbine[J]. 2012, 46(7): 26-31. DOI：

摘要

以某型2 MW海上风力机支撑结构为母型

运用有限元软件ANSYS建立了三维实体模型

并进行了模态、涡激振动及瞬态动力学等强度与振动特性分析.结果表明

非线性弹簧单元适用于模拟土壤对基础的约束

三维实体单元有限元模型在固有频率和应力分布计算上均比梁单元模型更为准确.在所提供的风况和海洋条件之下

海流涡激振动不会与支撑结构产生共振

支撑结构的应力水平主要受风载的影响

该结果可为海上风力机支撑结构强度与振动分析提供参考.针对不同环境

仅需调整载荷

所建模型宜可适用.

Abstract

ANSYS was adopted to build a 3D solid element model for a 2 MW offshore wind turbine. The analyses on modality

vortex-induced vibration and transient dynamic strength were performed. The results show that nonlinear spring elements are suitable for simulating the soil constraints and the 3D element model is more accurate than the beam element model in the intrinsic frequency and stress distribution calculations. The vibration due to sea currents will not cause resonance and the stress level of the support structure is mainly affected by the wind load. It appears that only load needs to be changed under different environmental conditions in using the present method.

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references

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ZHANG Jianhua, SUN Ke, WANG Zhenqing, et al. Static and dynamic of monopile foundation for offshore wind farm [C]∥20th International Offshore and Polar Engineering Conference. Cupertino, CA, USA: ISOPE, 2010:659-664.

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海洋石油工程专业标准化技术委员会.海上固定平台规划、设计和建造的推荐做法:工作应力设计法. SY/T 10030-2004[S]. 北京:国家发展和改革委员会,2004:55-58.

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