| Abstract: | Terrain roughness induces vibrations in the chassis of vehicles moving cross-country. These vibrations affect the comfort of the occupants detrimentally and, when a certain rough ride condition is exceeded, the vehicle can no longer be controlled by the driver. This study deals with the relationship between terrain roughness and the vehicle traveling over it. In the case of deforming soil, the so called original soil profile is altered significantly by the vehicle. This study determines the original as well as the modified profiles, the latter being caused by the vehicle traveling over the former. The vehicle's transfer function is used to compute the effective profile, which generates the actual vibrations of the vehicle. These investigations are presented for several soil types and for a number of vehicles whose mass and running gear design are known. |
