Dynamic Characteristics of Centrifugal Fan Impeller Based on Fluid-solid Coupling
The non pre-stressing and pre-stressing modal analysis for impeller were computed by software ANSYS,and the unsteady flow for centrifugal fan was simulated by software CFX,at the same time the air pressure around the impeller was obtained.The results show that,the pre-stressing effect will improve the values of natural frequencies of impeller,but the increased values of the natural frequencies are different,the main frequency of air pressure fluctuation around the impeller is equal to the blade passing frequency of impeller,and it will not caused the danger of fatigue failure of impeller.
Fluid-solid Coupling Centrifugal Fan Modal Analysis Numerical Simulation
Liu Mei
North China Electric Power University, Baoding 071000, China
国际会议
太原
英文
437-440
2012-08-17（万方平台首次上网日期，不代表论文的发表时间）