The tyre as a vehicle component

The tyre force and moment generating properties connected with the vehicle's horizontal motions are considered. Knowledge of tyre properties is necessary to properly design vehicle components and advanced control systems. For this purpose, mathematical models of the tyre are being set in vehicle simulation models. In the paper, the simple brush tyre model is treated first to gain insight. Then, the steady-state empirical 'Magic Formula tyre model' is discussed. A ful description of the steady-state part of new version 'Delft Tyre 96' is added. The non-steady state behaviour of the tyre is of importance in rapid transient manoeuvres, when cornering on uneven roads and for the analysis of oscillatory braking and steering properties. A relatively simple model is restricted to low time and path frequencies, based on the relaxation length concept, is introduced

The wheel shimmy phenomenon: A theoretical and experimental investigation with particular reference to the non-linear problem

Mechanical, Maritime and Materials Engineerin