基于ANSYS的风机叶片仿真研究与结构优化
Simulation Study and Structural Optimisation of Wind Turbine Blades Based on ANSYS

本文通过模态分析与单向流固耦合仿真方法对风机叶片进行了系统研究。模态分析显示，叶片尖端变形最大，中部最早出现扭转形变，建议设计时增加轴端尺寸以提高刚度和抗弯曲能力。单向流固耦合仿真表明，叶片最大等效应力集中在中部，建议通过增加材料厚度、优化结构布局或采用高强度材料等措施增强叶片中部的抗应力能力。研究揭示了叶片在不同工况下的结构响应特性，为风机叶片的结构设计与性能优化提供了理论依据和参考价值。
In this paper, a systematic study of wind turbine blades is carried out through modal analysis and one-way fluid-structure coupling simulation method. Modal analysis shows that the tip of the blade has the largest deformation, and the middle of the blade has the earliest torsional deformation, so it is recommended to increase the size of the shaft end to improve the stiffness and bending resistance. Unidirectional fluid-structure coupling simulation shows that the maximum equivalent stress of the blade is concentrated in the middle, and it is recommended to enhance the stress resistance of the middle part of the blade by increasing the thickness of the material, optimising the structural layout or adopting high-strength materials. The study reveals the structural response characteristics of the blade under different working conditions, which provides a theoretical basis and reference value for the structural design and performance optimisation of wind turbine blades.