横风向风效应对风机扩展基础的应力影响分析

Analysis on Stress Influence of Across-wind Effect to Fan Expansion Foundation

针对云南某风电场的实际工程,利用ANSYS有限元软件建立风机圆形扩展基础的模型,依据前人研究成果确定荷载并施加在有限元模型上,然后分析不考虑和考虑横风向效应的基础应力,判断横风向效应对风机基础的影响响应,最后针对增大基础截面尺寸和增加基础埋深两种不同的优化设计依据应力进行分析,发现增大基础截面尺寸的优化更合理。

In this paper, the model of fan circular expansion foundation has been built by the ANSYS finite element software on the actual engineering of one wind farm in Yunnan. According to previous research results ,the load is determined and applied to the finite element model. Then,analyzed are the foundation stress with or out of considering the across-wind effect to judge the impact response of the across-wind effect to the fan foundation. Finally, analysis is made on two different optimization designs aiming at increasing the basic sectional dimension and increasing the basic buried depth, It is found that increasing the basic sectional dimension is more reasonable.