As one of the main components of the centrifugal fan for HVAC,the struc-ture of side plate will have a direct impact on the vibration of the fan.On the premise that the deviations of fan pressure-flow and shaft power-flow performance do not exceed 2%,the static structure analysis and vibration detection are conducted for the comprehensive comparison of the two types of side plate structures to determine the impact of the side plate structure on the fan vibration.The results show that the maximum vibration velocity of the bearing position of the fan installed with two types of side plates meets the require-ments of JB/T 8689-2014 Fan Vibration Detection and Limits under the rotating speed of 1 800 r/min and rigid support state.The fan vibration velocity of the thin-plate stiffened side plate is about 15%higher than that of the thick-plate flat side plate.
维普
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