The present paper deals with the experimental analysis and the numerical modelling of the fatigue performance of gears. Such components, used for the mechanical transmission of a racing car, are made in high strength steel and carburized, quenched, shot-peened and superfinished before exercise. After a brief introduction on the state of the art on fatigue design methods, up to present main results are presented. The influence of shot-peening and of superfinishing on the fatigue limit were studied, then the operative parameters of the peening treatment were optimized, and the whole S-N curve of the peened component was determined. On the basis of DOE statistical methods and of theoretical models, a methodology for fatigue design of highly loaded components was developed.
Progetto a fatica di ruote dentate ad elevate prestazioni / A. Freddi; G. Olmi. - STAMPA. - (2009), pp. 67-91. (Intervento presentato al convegno Seconda giornata di studio Ettore Funaioli tenutosi a Bologna nel 18 Luglio 2008).
Progetto a fatica di ruote dentate ad elevate prestazioni
FREDDI, ALESSANDRO;OLMI, GIORGIO
2009
Abstract
The present paper deals with the experimental analysis and the numerical modelling of the fatigue performance of gears. Such components, used for the mechanical transmission of a racing car, are made in high strength steel and carburized, quenched, shot-peened and superfinished before exercise. After a brief introduction on the state of the art on fatigue design methods, up to present main results are presented. The influence of shot-peening and of superfinishing on the fatigue limit were studied, then the operative parameters of the peening treatment were optimized, and the whole S-N curve of the peened component was determined. On the basis of DOE statistical methods and of theoretical models, a methodology for fatigue design of highly loaded components was developed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
