Ride simulation of a nonlinear tractor-trailer combination using the improved statistical linearisation technique Online publication date: Tue, 18-Jun-2013
by J. Zhou
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 5, No. 2, 1998
Abstract: A 17-degree-of-freedom ride model of a nonlinear tractor-trailer combination thst includes tyre equivalent stiffness and damping coefficient dependence of excitation frequency is developed. The improved statistical linearisation technique applicable to solving this nonlinear combination is derived. A nonlinear three-degree-of-freedom driver model, a shock absorber exponential model, a hitch free play model and a leaf spring closed exponential model as well as a tyre model that includes both nonlinear stiffness and damping coefficient and wheel hop are incorporated in the analytical technique. By comparing the calculated response values of the tractor-trailer combination considering the tyre equivalent stiffness and damping coefficient dependence of excitation frequency with the ones of the tractor-trailer combination not considering such dependence, the accuracy of the tyre model and the effectiveness of the improved statistical linearisation technique are demonstrated.
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