Mass Damper Application to the Front Suspension of a Tilting Three Wheeler

Paper #:
  • 2010-32-0108

Published:
  • 2010-09-28
Citation:
Sponziello, A., Frendo, F., Guiggiani, M., and Rossi, R., "Mass Damper Application to the Front Suspension of a Tilting Three Wheeler," SAE Technical Paper 2010-32-0108, 2010, https://doi.org/10.4271/2010-32-0108.
Pages:
8
Abstract:
The paper analyses an undesired dynamic behaviour which occurs at the front suspension of a tilting motorcycle having two front wheels and a rear one. In particular, experimental data obtained on a first prototype of the vehicle have shown that the amplitude of the hop oscillation of the two front wheels becomes very high when the velocity of the three wheeler is about 85 km/h.In order to analyze the oscillations and to understand how to reduce them, a linear model of the front axle has been developed to estimate the eigenvectors and eigenvalues of the front suspension. Afterwards, two different ways to reduce the undesired oscillation are presented and evaluated. The obtained results show that, by the use of properly designed mass dampers, it is possible to greatly reduce the vibrations without affecting the handling behaviour of the vehicle.Finally, a multibody model allowed to analyze the effects of different sources of nonlinearities such as those due to the tire contact forces.
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