论文部分内容阅读
通过结合反求工程与有限元分析技术对水平轴风力机的桨叶进行了计算模态分析研究。首先采用反求工程技术对桨叶实物进行建模,然后将几何模型导入ANSYS Workbench中,基于Workbench软件对桨叶的模态进行了计算分析。并与实验模态结果加以对比和验证,得到了在低阶条件下合理的桨叶模态计算模型,探讨了以有限元为基础的计算模态分析在低阶条件下主要振动形式。该研究为未知几何模型的风力机桨叶模态分析提供了一种新的途径。
Through the combination of reverse engineering and finite element analysis of the horizontal axis wind turbine blade modal analysis. In the first step, reverse engineering was used to model the blades. Then, the geometric model was imported into ANSYS Workbench. Based on the Workbench software, the blade modalities were calculated and analyzed. Compared with the experimental modal results, the reasonable model of blade modal at low order is obtained, and the main form of vibration under low order is analyzed based on the finite element method. This study provides a new way for the blade analysis of wind turbine blades with unknown geometric model.