Title

Dirt road corrugations

Document Type

Article

Publication Date

9-1-2001

Department

Mathematics

Abstract

WE CONSIDER FACTORS INFLUENCING the build-up of corrugations on dirt roads and the reactions of vehicles to them. We suggest that corrugations are (at least in part) a consequence of a natural tangential oscillation of the tread surface of the car lure that occurs when the vehicle is being driven or braked. Secondly, we suggest that the unpleasant vibration experienced by a vehicle passing over a corrugated road is the result of a beat produced by the difference of the frequency of oscillation of its own tyres and the frequency of the stimulation received by the vehicle due to passage over a corrugated road. We consider how this is affected by actions that the driver can take and conclude with some recommendations and observations of related effects.

Publication Title

SOUTH AFRICAN JOURNAL OF SCIENCE

Volume

97

Issue

9-10

First Page

357

Last Page

358