A CAE method has been developed to address engine tonal noise and whine due to the excitation from a gerotor oil pump. The method involves a multidisciplinary approach including CFD, frequency-response structural analysis and acoustic analysis. The results from the application of the method applied to a couple of pumps with different designs are discussed. Engine tonal noise improvement through reduction in the excitation source from the pump and also stiffening the excitation path from the pump to the engine are studied. The effect of component modal alignment with oil pump orders is addressed as well.
CAE Simulation of Engine Tonal Noise Generated by Gerotor Oil Pumps
Sae Technical Papers
SAE 2015 Noise and Vibration Conference and Exhibition ; 2015
2015-06-15
Conference paper
English
CAE Simulation of Engine Tonal Noise Generated by Gerotor Oil Pumps
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