Abstract

AbstractThis study proposes a quarter-vehicle dynamic model of a mining dump truck using hydro-pneumatic suspension system (HPSs) suspension system to analyze the ride comfort performance of a mining dump truck under different operating conditions. The root mean square (RMS) acceleration response of vehicle body (awz) according to international standard ISO 2631-1:1997 is selected for performance analysis. The numerical simulation results indicate that awz values increase very quickly under bad operating conditions. The study results are useful reference for designers and manufacturers in the field of off-road vehicle suspension systems.KeywordsEarth-moving equipmentHydro-pneumatic suspensionVehicle dynamic modelPower spectral densityRide comfort

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