This work deals with the elastodynamic model of the geartrain operating the desmodromic valve trains of a fourcylinder ‘L’ engine of the Ducati racing motorbikes. The geartrain dynamic behaviour is simulated by means of a lumped parameter model which takes into account the mass moment of inertia of gears and shafts, the torsional shaft compliance, the damping effect, the parametric excitation due to the time-varying meshing stiffness, and the presence of backlash between meshing teeth. In particular, the possibility of tooth contact on both contact lines is included in the model. The comparison between numerical results and experimental measurements shows that the effectiveness of the model is satisfactorily assessed. The model allows the prediction and interpretation of the actual dynamic behaviour of the system, so to be used in design optimisation of the geartrain.
A Non Linear Model of the Geartrain of the Timing System of the Ducati Racing Motorbike / G. BENNI; RIVOLA A.; G. DALPIAZ; E. MUCCHI. - ELETTRONICO. - CDROM:(2004), pp. 1-10. (Intervento presentato al convegno 5th Int. Conference on Acoustical and Vibratory Surveillance Methods and Diagnostic Techniques tenutosi a Senlis, France nel 11-13 October 2004).
A Non Linear Model of the Geartrain of the Timing System of the Ducati Racing Motorbike.
RIVOLA, ALESSANDRO;DALPIAZ, GIORGIO;
2004
Abstract
This work deals with the elastodynamic model of the geartrain operating the desmodromic valve trains of a fourcylinder ‘L’ engine of the Ducati racing motorbikes. The geartrain dynamic behaviour is simulated by means of a lumped parameter model which takes into account the mass moment of inertia of gears and shafts, the torsional shaft compliance, the damping effect, the parametric excitation due to the time-varying meshing stiffness, and the presence of backlash between meshing teeth. In particular, the possibility of tooth contact on both contact lines is included in the model. The comparison between numerical results and experimental measurements shows that the effectiveness of the model is satisfactorily assessed. The model allows the prediction and interpretation of the actual dynamic behaviour of the system, so to be used in design optimisation of the geartrain.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
