IF articles

Summary - The installation of on-board monitoring systems is a fundamental aspect to increase the safety of railway vehicles and to obtain rational and efficient programming of maintenance interventions. Since the validation of new systems through test runs requires long times and high costs, a possible alternative is to resort to rollerrig systems in real or reduced scale during the early stages of development. The article describes the use of a 1:5 scale multi wheelset roller-rig to test brake system monitoring systems. In particular, the vehicle braking was replicated on the bench by means of a pneumatic system that reproduces the real one, while the vehicle inertia was simulated by controlling the speed of the rollers in order to consider the real deceleration of the vehicle.