The aim of this investigation was to study automotive disc brake cooling characteristics experimentally using a specially developed spin rig and numerically using finite element (FE) and computational fluid dynamics (CFD) methods. All three modes of heat transfer (conduction, convection and radiation) have been analysed along with the design features of the brake assembly and their interfaces. The spin rig proved to be very valuable equipment; experiments enabled the determination of the thermal contact resistance between the disc and wheel carrier. The analyses demonstrated the sensitivity of this mode of heat transfer to clamping pressure. For convective cooling, heat transfer coefficients were measured and very similar results were obtained from spin rig experiments and CFD analyses. The nature of radiative heat dissipation implies substantial e ects at high temperatures. The results indicate substantial change of emissivity throughout the brake application. The influence of brake cooling parameters on the disc temperature has been investigated by FE modelling of a long drag brake application. The thermal power dissipated during the drag brake application has been analysed to reveal the contribution of each mode of heat transfer.
Analysis of automotive disc brake cooling characteristics
2003-08-01
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Analysis of automotive disc brake cooling characteristics
Tema Archiv | 2003
|Analysis of automotive disc brake cooling characteristics
Tema Archiv | 2002
|Analysis of automotive disc brake cooling characteristics
Online Contents | 2003
|Analysis of automotive disc brake cooling characteristics
British Library Conference Proceedings | 2002
|Analysis of automotive disc brake cooling characteristics
Kraftfahrwesen | 2003
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