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Title: Numerical study of heat transfer and speed air flow on performance of an auto-ventilated disc brake
Authors: Afanador García, Nelson
García León, Ricardo Andrés
Gómez Campero, July Andrea
Keywords: Temperatura
Freno de disco
Issue Date: 16-Apr-2021
Publisher: Diego Angeli and V’yacheslav Akkerman
Citation: García-León, R.A.; Afanador-García, N.; Gómez-Camperos, J.A. Numerical Study of Heat Transfer and Speed Air Flow on Performance of an Auto-Ventilated Disc Brake. Fluids 2021, 6, 160. 10.3390/fluids6040160
Series/Report no.: CERG;ART19
Abstract: In the braking system, the heat dissipation generated by the friction between the disc and pad should be evacuated as quickly as possible. In this work, five common different automotive disc brakes were studied through mathematical theories of heat transfer and numerical methods using the ANSYS software. In addition, a direct comparison between experimental, theoretical, and simulation values found in the open literature was performed to propose a disc brake with an improved geometry in terms of dissipation of heat transfer. The numerical results were considered to propose two possible solutions of disc brake geometries using N-38 ventilation blades used in aeronautic engineering. An improvement in temperature dissipation was achieved by approximately 23.8% compared to the five geometries analyzed with a simple type N-38 ventilation blade. The heat dissipation in the brakes strongly depends on the geometry of the disc, the geometry of the blades, the material from which it is manufactured, the material of the pad, the weight of the vehicle, and the operating conditions, as can be verified with mathematical calculations and experiments. The results obtained demonstrate that the discs can be used effectively in extreme working conditions (80 km/h and 33°C), without affecting the safety of the occupants and the braking system.
ISSN: 2311-5521
Appears in Collections:Artículos

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