A modified Monte-Carlo simulation approach to heavy vehicle design for good dynamic performance in multiple scenarios

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A modified Monte-Carlo simulation approach to heavy vehicle design for good dynamic performance in multiple scenarios

Chakarvartula, S. / Haque, I. / Fadel, G.

This paper reports on the development and implementation of a methodology for the simulation-based design of heavy vehicles for good dynamic performance in a variety of scenarios or manoeuvres. These range from standard test manoeuvres to extreme emergency manoeuvres. The problem is formulated as a multi-criteria, multi-scenario design problem with the goal of finding an optimal vehicle design, which can improve the vehicle dynamic performance in all the considered scenarios simultaneously. Three lateral dynamics manoeuvres (single lane change, pulse steer, and ramp steer) and one extreme manoeuvre, designed to induce roll-over, have been considered. Dynamic performance indicators are used to gauge the performance of the vehicle. A modified Monte-Carlo optimisation technique is used to find the optimal designs. The results obtained showed that significant improvement in vehicle dynamic performance could be achieved through this approach, The results further indicate that vehicles can be designed to simultaneously provide good handling behaviour as well as have a lower propensity for dynamic roll-over.