Moetakef, M., Zouani, A., and Demren, E., "CAE Simulation of Engine Oil Pump Tonal Noise: Design Modifications and Countermeasures," SAE Technical Paper 2017-01-1076, 2017, doi:10.4271/2017-01-1076.
In this presentation, two cases of CAE simulations of oil pump-induced tonal noises are presented. The first case involves oil pump-induced whine in an I4engine during coast down. The second case addresses oil pan moan during hot idle and the effect of oil pump pick-up tube positioning inside the oil pan of an I5 engine. The investigations include several design modifications to the pump and the pick-up tube to prevent the tonal noise. Test data are also included to demonstrate the accuracy of the CAE simulation.