Circulation of Power During Braking of Tyre of Vehicle Wheel On Support Rollers of he Diagnostic Stand

DOI

10.2991/avent-18.2018.28How to use a DOI?

Keywords

diagnosis, power, wheel radius, wheel slip, the coefficient of friction, normal reaction, tangential response, kinematic misalignment, the bearing rollers of the diagnostic stand, elastic tire, the circulating power

Abstract

The article conducts the study of the circulation of power in the diagnosis of the car on the brake stand that is kinematically connected with the supporting rollers. Case study. It is suggested that the longitudinal displacement of the wheel operating in braking mode on two kinematically connected support rollers leads to kinematical misalignment, resulting in circulation of the parasitic power of the NC in a closed loop "tyre - front support roller - chain transmission - rear support roller - tyre". Research result. The conditions of the circulating power flow are revealed experimentally, which are explained by the fact that during the braking of the wheel with an elastic tire on the kinematically connected support rollers of the stand, as a result of kinematical misalignment, there is circulation of the parasitic power of the NC in a closed loop "tire - front support roller - chain transmission - rear support roller - tire". Conclusion. It is found that the circulation of parasitic power is formed regardless of the presence of the displacement of the wheel, but varies depending on the variation of the displacement value a and the normal load GK on the wheel. The occurrence of circulating parasitic power NC occurs in the driven mode of rolling the wheel, when S=0 it increases to a value S=0,1, upon reaching which it falls. The magnitude of spurious circulating power NC takes a minimum value when the slippage is S³0,7. It is established that the circulating power values NC can be commensurate with the value of the braking power NT

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Aleksandr I. Fedotov
AU  - Sergey N. Krivtsov
AU  - Oleg S. Yankov
PY  - 2018/05
DA  - 2018/05
TI  - Circulation of Power During Braking of Tyre of Vehicle Wheel On Support Rollers of he Diagnostic Stand
BT  - Proceedings of the International Conference "Aviamechanical engineering and transport" (AVENT 2018)
PB  - Atlantis Press
SP  - 147
EP  - 151
SN  - 2352-5401
UR  - https://doi.org/10.2991/avent-18.2018.28
DO  - 10.2991/avent-18.2018.28
ID  - Fedotov2018/05
ER  -