Modeling of Gearbox Whining Noise

SIA, Le Mans (France), 22-23 October 2014

The main source of excitation in gearboxes is generated by the meshing process, which generates vibration transmitted to the casings through shafts and bearings and structure borne noise induced by the Static Transmission Error (STE). An original calculation procedure is implemented by using a finite element method to predict the STE, the teeth dynamic loads and the dynamic response of the gearbox. The methodology has been validated step by step against measurements.