Prediction of airborne radiated noise from lightly loaded lubricated meshing gear teeth
journal contributionposted on 20.08.2015, 08:48 by Stephanos Theodossiades, Miguel De la Cruz, Homer Rahnejat
This paper introduces a novel analytical method for determination of gear airborne noise under lightly loaded conditions, often promoting gear rattle of loose unengaged gear pairs. The system examined comprises a single gear pair, modelled through integrated contact tribology and inertial transient dynamics. Lubricant film thickness, structural vibration and airborne gear noise are predicted and correlated with experimental measurements undertaken in a semi-anechoic environment. Good agreement is noticed between the numerical predictions and the experimental measurements. The presented model is capable of estimating the airborne radiated gear noise levels and the dynamic behaviour of gear pairs under different operating conditions, with superimposed impulsive input speed harmonics.
Engineering and Physical Sciences Research Council Automotive Transmission Rattle Project [grant number: EP/D050332/1], Ford Motor Company for sponsorship of the research funded under their University Research Program (URP) and the Technology Strategy Board (TSB) and Romax Technology Ltd for the Knowledge Transfer Partnership Scheme 001293.
- Mechanical, Electrical and Manufacturing Engineering