摘要
同时考虑离心力、重力和气动力对风机叶轮的作用,其中叶轮表面的气动力通过采用软件CFX对风机流场进行稳态数值模拟获得,并将结果导入到有限元软件ANSYS中,对风机叶轮强度进行研究。计算结果表明:叶轮最大总变形发生在叶片吸力面的中间位置,最大等效应力发生在叶轮前盘;在不同的稳定工况下,叶轮最大等效应力值有所不同,但差别很小。
Taking into account the effect of centrifugal force, gravity and aerodynamic force against the fan impeller, the aerodynamic force on the impeller surface was obtained through steady state numerical simulation by fan flow field with the software CFX, after which the result was led into the finite element software ANSYS for the strength investigation of the impeller. Calculation results show that the maximum overall deformation would occur in the middle position on the blade suction surface and the maximum equivalent stress would occur in the shroud of the impeller. Under different stable working conditions, the maximum equivalent stress values are different, but there is only little difference.
出处
《发电设备》
2012年第1期13-16,共4页
Power Equipment
关键词
离心通风机
流固耦合
数值模拟
强度
centrifugal fan
fluid-solid coupling
numerical simulation
strength
作者简介
孙哲（1985-），男，在读硕士研究生，主要从事大型回转机械的安全与经济运行研究。E-mail：sunzhechina@163．com
