In this article we present a simplified time model of elastic deformation i
n rubber. The originality of the method is to provide a model with very few
degrees of freedom while conserving the frequential, nonlinear and energet
ic characteristics of the rubber. The energy dissipation of the elastomer i
s integrated to the structural level of the material by introducing rheolog
ical models or fractional derivatives. The representation obtained may be i
ntegrated into the complete vehicle models. It may also be applied to the c
onception and validation phase of an engine or vehicle suspension.