Analysis of Motorscooter Ride Comfort 2002-01-2177
A ride comfort analysis of two-wheeled veichles is discussed in this work. A series of experimental tests were performed in relation to roads having different surface roughness; employed vehicles, differing on motorization, suspensions and wheel sizes, were instrumented with two axes (longitudinally and vertically oriented) accelerometers, fixed at the human-vehicle interfaces. Moreover, two axes accelerometers were also fixed to the wheel hubs, in order to record road inputs at each wheel.
The comfort analysis, which was conducted following the international ISO 2631, allowed the influence of the primary vehicle suspension system to be investigated.
In the final part of the work the frequency response function of the scooter driver system was investigated on the basis of parametric identification methods. The horizontal and vertical wheel hub accelerations were considered as system inputs, while the acceleration measured at one of the recording points, was considered as the system output. The so determined frequency response function were able to accurately reproduce the vibration levels at the driver interface points.