Open AccessThe research into the rolling radius of a wheel when dealing with rollers of a roller tester
Author(s) -
Oleg S. Yankov,
A. V. Kamnev,
S S Sherstenev
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/632/1/012055
Subject(s) - radius , displacement (psychology) , traction (geology) , plane (geometry) , rolling resistance , inclined plane , mechanics , engineering , structural engineering , physics , mathematics , mechanical engineering , geometry , computer science , psychology , computer security , psychotherapist
The paper focuses on one of the factors that significantly affect the occurrence of errors in the measurement of traction qualities of the car on the roller tester with two pairs of support rollers. It is hypothesized that the value of the rolling radius is significantly influenced by factors such as: the displacement of the wheel a relative to the symmetry plane of the support rollers of the tester, the load on the wheel and the air pressure of the p t in the tire. The change of these factors changes dramatically the value of the rolling radii r k01 and r k02 – wheel rolling radii in the driven mode. The authors propose a method for determining the rolling radius of the wheel and present the study results. The functional dependences obtained in the course of the experimental study were correctly approximated by equations, which allows one to perform calculations of the rolling radii r k01 and r k02 on two cylindrical support surfaces of the tester, taking into account the load on the wheel, its displacement a and the tire air pressure p t .