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Finding New Component in Displacement of Normal Supporting Surface Reaction to Car Wheels

  • T. A. GolubevaEmail author
  • E. V. Balakina
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

It is known that when an elastic wheel, e.g., a car tire, moves on a solid supporting surface, its normal reaction is displaced longitudinally. The direction of such displacement in relation to the forward speed vector of the wheel depends on the wheel movement. The magnitude of such displacement (drift) is important as it determines the center of the friction-at-rest area in the contact spot, which triggers a lateral reaction of the supporting surface that determines the stability of wheel and car movement to a great extent. There used to be known only two components of such a drift. The first component characterizes hysteresis losses (radial and tangential) due to the wheel rolling. The second component characterizes the longitudinal elastic displacement of the wheel axis in relation to the geometric center of the contact spot. The authors have experimentally identified a new, i.e., the third component that characterizes elastic angular deformations in the tire, which cause the curve of normal stresses in the contact spot to be asymmetric. This third component has been found to have much greater magnitude than the two other components.

Keywords

Elastic wheel Contact area Normal reaction Coefficient of adhesion Reactions in contact Displacement 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Volgograd State Technical UniversityVolgogradRussia

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