The proposed project focuses on the development of innovative models, methods and tools to improve the design process of high-performance gears aiming to increase efficiency and reduce vibrations produced and noise radiated by power transmissions. Gear efficiency and transmission noise has become an aspect of considerable importance because, in electric vehicles, the gearbox system is the main mechanical source of losses and noise.
This research project is focused on the development of a new methodology for the simulation of high-performance gears based on the concept of flexible multibody model. In particular, the main goal is to identify those parameters and constructive elements of gear pairs that are most relevant for the generation of vibration and noise.
Coupled with the multibody model, an innovative acoustic model will be proposed, converting the vibration output of the multibody models into an acoustic measure. Finally, the models will be verified against experimental results.
Scientific literature lacks a significant body of experimental results to be used as reference, thus an important experimental campaign will be carried out to obtain the necessary reference data, which will be made available to the public.
The outcomes of this research project will make it possible to develop a simulation model capable of identifying, and therefore predicting, complex operating phenomena in gears such as transients, gear shifts, non-linear dynamics phenomena, noise, and backlash.