基于ANSYS Workbench的离心叶轮的振动特性分析

摘要

针对某型离心压缩机的叶轮使用SolidWorks建立模型,并通过ANSYS Work-bench软体对其进行单向耦合分析.建立了离心叶轮的三维流场模型,得到了在设计转速下离心叶轮内部流场的应力分布,再将该气动力加载在叶片上,获得了离心力和气动力共同作用在叶片上的应力分布和最大变形量,最后对比分析了离心力和气动力对离心叶轮振动特性的影响.%By using the model of the impeller system built by SolidWorks, and one-way fluid-solid interaction analysis of centrifugal impeller is researched with the ANSYS Workbench. The three-dimensional model for the impeller is established. With the model, the stress distribution of internal flow field is acquired under the design speed. Acting on the impeller blade with aerodynamic force, the stress distribution and maximum deformation of impeller blade are obtained. Finally, the influences of centrifugal and aerodynamic force on blade stree-strain and vibration characteristics are compared and analyzed.