Experimental Modal Analysis of Fan Vibration Frequency
Fan is used for pneumatic conveying grain in the 4ZTL-1800 combine harvester threshing prior to cutting. In order to decrease power consume of it, the experimental modal analysis of fan was done by using hammer-hitting pulse-inspirit method. The natural frequencies of fan vibration is obtained, which is contrasted with inspirit frequency of fan, then resonance vibration of fan is found and its frequency is at 125Hz, which verifies the result of the experimental modal analysis.The results are beneficial to decrease power consume of fan.
L. J. Wang and Z. Y. Pan, "Experimental Modal Analysis of Fan Vibration Frequency", Applied Mechanics and Materials, Vols. 138-139, pp. 395-398, 2012