Calculation of model stresses from a motor vehicle wheel on the contact patch, depending on tire pressure

Abstract

This article presents part of a model study on the abrasion resistance of an anti-icing agent impregnation composition, related to the calculation and modeling of stresses transmitted by a model wheel to a concrete road, taking into account actual indicators and scaling. The aim of the research was to assess the normal stresses arising from the impact of motor vehicles, taking into account the variability of the contact patch resulting from a decrease or increase in tire pressure. Calculations were performed for different types of vehicles, from bicycles to trucks, which were conditionally divided into categories A1-A5 (in ascending order of vehicle weight). The calculation results are presented as ranges of normal stresses on the road surface caused by the operation of motor vehicles, depending on their type and standard load capacity. The calculations were performed using the linear graph method of universal tire characteristics, taking into account normal deflection and variable potential pressure in the tire. The obtained calculation results will allow for more accurate development of calculation schemes in numerical or large-scale modeling of road situations.