Optimizing of Turbine blade spar using Ansys program

Journal of Petroleum Research and Studies Pub Date : 2022-04-21 DOI:10.52716/jprs.v12i1(suppl.).639

F. Al-Maliky, D. A. Kadhim

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Abstract

The current work involved optimizing the spars of wind turbine blades while taking into account the wind speed quantities that affected the blade structure. The objective was to determine the optimal dimensions of turbine blade spar configurations using the finite element method under the influence of the maximum pressure associated with the first mode shape while maintaining the Von Misses stresses within the assumed safety factor (1.5). (200-230 MPa). The blade was stiffened with a main box spar and two auxillary spars on each side. Appropriate spar locations were specified for poisons with a high natural frequency first mode. The blade parts' dimensions were discretized to allow for greater flexibility and precision in dimension assignment. By utilizing the ANSYS program, the optimization process required a certain number of iterations to modify the blade structure's dimensions. Optimized iteration was considered in order to increase the thickness in areas of high stress and decrease the thickness in areas of low stress. Additionally, a comparison between a blade structure with optimal dimensions and one with non-optimal dimensions was included.

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利用Ansys程序对汽轮机叶片梁进行优化设计

目前的工作涉及在考虑影响叶片结构的风速量的情况下优化风力涡轮机叶片的桅杆。目标是在与第一模态振型相关的最大压力影响下，使用有限元方法确定涡轮叶片梁结构的最佳尺寸，同时将Von mises应力保持在假定的安全系数(1.5)内。(200 - 230 MPa)。叶片用一个主箱梁和两侧两个辅助梁加固。对于具有高固有频率第一模态的毒物，指定了适当的梁位置。叶片零件的尺寸离散化，以允许更大的灵活性和精度的尺寸分配。利用ANSYS程序，优化过程需要一定次数的迭代来修改叶片结构的尺寸。为了在高应力区域增加厚度，在低应力区域减小厚度，考虑了优化迭代。此外，还对具有最优尺寸和非最优尺寸的叶片结构进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Petroleum Research and Studies

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