挡板式叶轮结构的强度校核研究

Research on Strength Check of Baffle Impeller Structure

基于水面矢量推进器,通过省略轮毂和轮辐结构、增加挡板结构与叶片连接,提出了一种新型的挡板叶片式叶轮结构。根据叶片的实际工况,建立了用于求解叶片主应力的数学模型,结合叶片工作载荷,采用第三强度理论进行了强度校核。利用ANSYS有限元分析软件对叶轮的应力情况进行了仿真研究,对仿真和理论结果进行了对比分析,主应力的理论计算值与仿真计算值的偏差分别为7. 7%,1. 7%。

Based on the surface vector propeller,a new type of baffle vane impeller structure was proposed,which omitted the hub and spoke and increases the connection between the baffle and the blade.Then,according to the actual working conditions of the vane,a mathematical model for solving the main stress of the vane was established.Finally,the finite element analysis software ANSYS was used to conduct a simulation study on the stress situation of the impeller,and the simulation and theoretical results were compared and analyzed.The deviation between the theoretical and simulation values of the main stress was respectively 7.7%and 1.7%.