Abstract：The rider-motorcycle system model was established by the motorcycle dynamics software BikeSim, the pitch angle and ride comfort were simulated under Grade B road stochastic excitation and accelerating-braking condition; The maximum of pitch angle and the pitching and vertical vibration acceleration RMS values under Grade B road stochastic excitation were taken as optimized objectives, and the suspension property parameters as design variables, the parallel computing tasks were built using iSIGHT to drive BikeSim and MATLAB, the multi-objective optimization was executed for motorcycle suspension system, a method to find the goal weights was proposed according to Pareto frontier, and the optimal solution was obtained. The optimal result shows that the maximum of pitch angle under accelerating-braking was decreased and the ride comfort was improved.
2013, Vol. 32 
