عنوان مقاله [English]
One of the most serious accidents is rollover. The goal of this research is to investigate the effect of vehicle suspension parameters on a SUVs rolling stability in rollover conditions.For this purpose, dynamic modeling is determined by consideration of a semi static rollover vehicle in rigid conditions and with suspension systems. After that, the dynamic stability index (DSI) is specified.
To have a comprehensive result, a full vehicle model with 105 degrees of freedom in ADAMS was simulated.Finally, with the validating model, the dynamic parameters of a suspension system were changed in their specific range, and the effect of those parameters in a rollover critical condition, during a J-turn and fishhook maneuver, has been determined.For the purpose of the rollover behavior investigation, the Static Stability Factor (SSF) and the Dynamic Stability Factor (DSF) were recorded, and it was
determined which parameters were useful for changes in the process of vehicle design, in order to obtain roll stability and a safer vehicle.