An Experimental Study on Braking Thermal Damage of Brake Disk Cover

• Journal title : Journal of Digital Convergence
• Volume 13, Issue 11,  2015, pp.171-178
• Publisher : The Society of Digital Policy and Management
• DOI : 10.14400/JDC.2015.13.11.171
Title & Authors
An Experimental Study on Braking Thermal Damage of Brake Disk Cover
Ko, Kwang-Ho; Moon, Byung-Koo;

Abstract
The disk cover is installed to protect brake disk and calliper and it's removed right before delivering to customers. The temperature of disk cover was measured driving test vehicles(2000cc, diesel) in this study. The highest temperature measured for the driving test(120km/h-braking(0.3G)-stop-120km/h-braking(0.5G)-stop) was $\small{260{\sim}270^{\circ}C}$ in the upper part of the disk cover and the temperature varied considerably around the disk cover. It can be inferred from this temperature distribution around the cover that the major heat transfer from hot disk to cover was through convection. In other words, the hot air generated by braking friction moved up to the upper part of the disk cover. And only the upper area of the disk cover was melted down during this driving test. The thickness of disk cover was increased to 1.0mm from 0.7mm and 1 paper of masking tape was pasted in the upper region of the disk cover. Then the cover endured the heated air formed by braking friction during the driving test.
Keywords
Disk cover;HIPS;Driving test;Brake disk;Braking friction;
Language
Korean
Cited by
References
1.
C.H. Kim, "FE Analysis of Heat Transfer Rise with Hellical Grooved Vent of the Brake Disk", KSAE03-Y0023, 2003.

2.
S. K. Lee, B. Y. Sung, S. K. Ha, "Optimal Design of Ventilated Disc Brake Rotor", Transactions of Korean Society of Mechanical Engineers A. Vol. 24, No. 3, pp. 593-602, 2000.

3.
S. K. Rhee, "Friction Coefficient of Automotive Friction Materials - Its Sensitivity to Load, Speed, and Temperature", SAE 740415, pp. 1575-1580, 1974.

4.
C. K. Kim, B. Y. Sung, "Thermal Behavior Analysis of Disc Brake System During Quick Braking", Transactions of Korean Society of Mechanical Engineers A, Vol. 22, No. 6, pp. 1106-1113. 1998.

5.
H. I. Jung, H. M. Kim, "Investigation of Thermal Deformation in Brake Disk by FEM", KSAE04-Y0041, 2004.

6.
S. J. Jung, "Analysis of Heat Transfer, Guide Book for ANSYS Application(II)", Tae Sung S&E Inc., pp. 225-228, 2000.

7.
Y. Choi, J. W. Choi, H. M. Kim, Y. W. Seo, "Thermal Dissipation Performance of the Ventilated Brake Disc having Helical Grooved Vent", Journal of Korean Society of Precision Engineering, Vol. 21, No. 3, pp. 117-123, 2004.

8.
Y. J. Choi, S. J. Moon, J. H. Kim, S. H. Kim, "The Method of Green Data Center to Improve the Power Efficiency", Journal of Digital Convergence, Vol. 8, No. 3, pp. 181-197, 2010.

9.
S. M. Kim, "A Study on Thermal Analysis in Ventilated Disk Brake by FEM", Journal of Korean Society of Manufacturing Technology Engineers, Vol. 18, No. 5, pp. 544-549, 2009.

10.
J. T. Kim, B. J. Baek, "Thermal Behavior of Automotive Ventilated Disk Brake", Proc. of the 32nd Korean Society of Tribologists and Lubrication Engineers Conference, pp. 186-192, 2000.

11.
D. V. Rostato, "Material and Process Selection Handbook", Elsevier Science, pp. 123-125, 2004.

12.
K.K. Chung, J.Y.Park, K.O. Cha, "An Experimental Study on the Friction Characteristics of Brake pad for Automobile", KSAE95-17-0032.

13.
B. Blot, "Computation of Thermally Stressed Brake Disk", SAE 890086, 1986.

14.
C. H. Lim, B. C. Goo, "An Experimental Study for Development of Brake Disk Material", KSAE09-B0286, 2009.

15.
"Specification of 3M High performance Masking Tape2693", 3M FOD#1585, 2000.