Analysis of Contamination Protection for Brake Rotor

Paper #:
  • 2016-01-1930

Published:
  • 2016-09-18
DOI:
  • 10.4271/2016-01-1930
Citation:
Lee, H., "Analysis of Contamination Protection for Brake Rotor," SAE Int. J. Passeng. Cars - Mech. Syst. 9(3):1199-1205, 2016, doi:10.4271/2016-01-1930.
Author(s):
Affiliated:
Pages:
7
Abstract:
Contamination protection of brake rotors has been a challenge for the auto industry for a long time. As contamination of a rotor causes corrosion, and that in turn causes many issues like pulsation and excessive wear of rotors and linings, a rotor splash protection shield became a common part for most vehicles. While the rotor splash shield provides contamination protection for the brake rotor, it makes brake cooling performance worse because it blocks air reaching the brake rotor. Therefore, balancing between contamination protection and enabling brake cooling has become a key critical factor when the splash shield is designed. Although the analysis capability of brake cooling performance has become quite reliable, due to lack of technology to predict contamination patterns, the design of the splash protection shield has relied on engineering judgment and/or vehicle tests. Optimization opportunities were restricted by cost and time associated with vehicle tests. Studies were done for various ways of analyzing the contamination qualitatively and quantitatively and are presented in this paper. Combining the technology presented in this paper along with the existing brake cooling analysis capability shall enable the optimization of the splash shield design for both the contamination protection and brake cooling.
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