In order to analyze the dynamic mechanical properties and hysteresis loss of the tread rubber quantitatively

a viscoelastic constitutive equation based on generalized Maxwell model was developed

the model parameters of storage modulus and loss modulus for each temperature were determined according to the frequency sweeping experimental data under dynamic compression conditions

and an algorithm of non-linear regression was proposed and numerically implemented to get the minimum of error function.The finite element code ABAQUS/standard was used to simulate the process of tread rubber dynamic compression

which reflected the change of loss tangent at the different vibration frequencies

and then the simulated results were compared with the experimental data.It was proved that the viscoelastic constitutive model and the parameters identification method could be used to analyze the tread rubbers dynamic mechanical properties accurately.On this basis

the quantitative prediction of the tread rubber stress-strain hysteresis loop and the energy dissipation in a full deformation cycle under different temperatures and frequencies was carried out

the results showed that the energy dissipation of the unit volume increased gradually with the increase of frequency

and the increasing magnitude of the energy dissipation was scale-up with the decrease of temperature.