Simulation of Trucking Mode Cars With a Combined Elastic Element in the Rear Axle Suspension

Abstract

The article analyzes elastic elements with a nonlinear characteristic. To improve the smoothness of a truck, a combined elastic element is proposed, including a semi-eleptic spring and an air cylinder, for installation in the rear axle suspension of a car. In order to assess the effect of a combined elastic element with a nonlinear characteristic on the smoothness of the ride, a mathematical model has been developed. The mathematical model allows for a numerical experiment taking into account the nature of the interaction of tires with unevenness of the roadway and the nonlinear characteristics of the combined elastic element.

Estimation of energy consumption for rolling a mobile vehicle equipped with ultra-low-pressure tires

“…The problem of increasing the efficiency of agricultural vehicles equipped with ultra-lowpressure tires stands alongside the problem of increasing fuel efficiency. In [3], it is noted that when a highly elastic tire moves on deformable soil, there is a range of optimal intratire pressure, at which the total rolling resistance becomes minimal, and the propulsive efficiency takes maximum values. However, the issues of assessing the influence of operating modes of ultra-low-pressure tires on its energy consumption during rolling have not been studied enough.…”