Autores: J. A. Brandão, J. O. Seabra, M. J. Castro

A numerical model for the prediction of micropitting initiation on gear teeth flanks and, to some extent, of mild wear is presented. This model hinges on a model of the mixed film lubrication regime and on the application of the Dang Van high-cycle multi-axial fatigue criterion. A comparison of an actual micropitting test on spur gears with its simulation using the model is made with regard to the mass loss of the driving gear and the evolution of its roughness.

J. A. Brandão¹| J. O. Seabra²| M. J. Castro³
1Bolseiro de investigação, INEGI, FEUP
2Prof. Associado, DEMEGI, FEUP
3Prof. Adjunto, Departamento de Engenharia Mecânica, ISEP