Publisher : The Korean Society of Automotive Engineers
DOI : 10.7467/KSAE.2016.24.4.471
Title & Authors
An Experimental Study for Machined Patterns of Friction Surface on Disc Brake Rotor in Performance Aspect Jung, Taeksu; Cha, Bawoo; Hong, Yunhwa; Kim, Cheongmin; Hong, Younghoon; Cho, Chongdu;
Cross-drilling and slotting on the frictional surface of a brake rotor are methods used for improving the performance of the brake system. These shapes have particular advantages, such as the shaving effect of a slotted shape, which maintains a clean pad-to-rotor contact surface, and the venting effect of a drilled shape, which provides passageways for the gas to escape. In order to understand the effect of the machined pattern on the brake performance aspect, an experimental method is adopted along with the dynamometer test. The cross-drilled rotor, slotted rotor, and mixed pattern rotor with cross-drilling and slotting machining are prepared and tested in terms of friction coefficient, temperature, braking torque, and noise.
S. K. Rhee, M. G. Jacko and P. H. S. Tsang, "The Role of Friction Film, Wear and Noise of Automotive Brakes," SAE 900004, 1990.
A. Belhocinea, C. D. Cho, M. Nouby, Y. B. Yi and A. R. Abu Bakare, "Thermal Analysis of Both Ventilated and Full Disc Brake Rotors with Frictional Heat generation," Applied and Computational Mechanics, Vol.8, No.1, pp.5-24, 2014.
B. Back, J. Oh, H. Koo, I. Yang, S. Kim, Y. Kim and H. Kim, "Brake Fluid Temperature Simulation Study during Mt. Chiri Descent Based on Brake Dynamo Test," KSAE Spring Conference Proceedings, pp.279-284, 2010.
H. Sun, "Sensitivity Study on Brake Cooling Performance," SAE 2006-01-0694, 2006.
Y. Yildiz and M. Duzgun, "Stress Analysis of Ventilated Brake Discs Using the Finite Element Method," Int. J. Automotive Technology, Vol.11, No.1, pp.133-138, 2010.
Standard Number 135, Light Vehicle Brake Systems, Unite State Department of Transportation, TP-135-01, 2005.
SAE International Surface Vehicle Recommended Practice, Disc and Drum Brake Dynamometer Squeal Noise Matrix, SAE Standard J2521, 2006.