0
TECHNICAL PAPERS

Hot Spotting and Judder Phenomena in Aluminum Drum Brakes

[+] Author and Article Information
Kwangjin Lee

Delphi Automotive Systems, Technical Center Brighton, 12501 E. Grand River, Brighton, MI 48116-8326

Frank W. Brooks

Delphi Automotive Systems, Technical Center Dayton, 1435 Cincinnati Steet, Dayton, OH 45408

J. Tribol 125(1), 44-51 (Dec 31, 2002) (8 pages) doi:10.1115/1.1506315 History: Received February 26, 2002; Revised June 26, 2002; Online December 31, 2002
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.

References

Barber,  J. R., 1969, “Thermoelastic Instabilities in the Sliding of Conforming Solids,” Proc. R. Soc. London, Ser. A, 312, pp. 381–394.
Kreitlow, W., Schrodter, W., and Matthai, H., 1985, “Vibration and Hum of Disc Brakes under Load,” SAE Paper 850079.
Inoue, H., 1986, “Analysis of Brake Judder Caused by Thermal Deformation of Brake Disc Rotors,” SAE Paper 865131.
Thoms, E., 1988, “Disc Brakes for Heavy Vehicles,” Inst. Mech. Eng. Intl. Conf. on Disc Brakes for Commercial Vehicles, C464/88, pp. 133–137.
Anderson,  A. E., and Knapp,  R. A., 1990, “Hot Spotting in Automotive Friction Systems,” Wear, 135, pp. 319–337.
Steffen, T., and Bruns, R., 1998, “Hot Spot Formation on Passenger Car Brake Discs,” Automobiltechnische Zeitschrift, pp. 408–414.
Lee, K., and Dinwiddie, R. B., 1998, “Conditions of Frictional Contact in Disk Brakes and Their Effects on Brake Judder,” SAE Paper 980598.
Severin,  D., and Dörsch,  S., 2001, “Friction Mechanism in Industrial Brakes,” Wear, 249, pp. 771–779.
Lee,  K., and Barber,  J. R., 1993, “Frictionally-Excited Thermoelastic Instability in Automotive Disk Brakes,” ASME J. Tribol., 115, pp. 607–614.
Lee, K., and Barber, J. R., 1995, “Effect of Intermittent Contact on the TEI of Automotive Disk Brake Systems,” ASME-AMD, Thermoelastic Problems and the Thermodynamics of Continua, 198 , pp. 27–32.
Yi,  Y.-B., Du,  S., Barber,  J. R., and Fash,  J. W., 1999, “Effect of Geometry on Thermoelastic Instability in Disk Brakes and Clutches,” ASME J. Tribol., 121, pp. 661–666.
Zagrodzki,  P., Lam,  K. B., Al Bahkali,  E., and Barber,  J. R., 2001, “Nonlinear Transient Behavior of a Sliding System With Frictionally Excited Thermoelastic Instability,” ASME J. Tribol., 123, pp. 699–708.
Boulton, S., and Whitaker, R., 1997, “Performance Characteristics of Al MMC Rotor Materials,” SAE Paper 973025.
Fuganti, A., and Lorenzi, L., 1996, “Performance of a Redesigned MMC Automotive Brake Drum,” SAE Paper 960994.
Lee,  K., 2000, “Frictionally Excited Thermoelastic Instability in Automotive Drum Brakes,” ASME J. Tribol., 122, pp. 849–855.
Barber,  J. R., Beamond,  T. W., Waring,  J. R., and Pritchard,  C., 1985, “Implications of Thermoelastic Instability for the Design of Brakes,” ASME J. Tribol., 107, pp. 206–210.
Ruiz Ayala,  J. R., Lee,  K., Rahman,  M., and Barber,  J. R., 1996, “Effect of Intermittent Contact on the Stability of Thermoelastic Sliding Contact,” ASME J. Tribol., 118, pp. 102–108.
Henderson,  J. B., Wiebelt,  J. A., Tant,  M. R., and Moore,  G. R., 1982, “A Method for the Determination of the Specific Heat and Heat of Decomposition of Composite Materials,” Thermochim. Acta, 57, pp. 161–171.
Hartsock,  D. L., Hecht,  R. L., and Fash,  J. W., 1999, “Parametric Analyses of Thermoelastic Instability in Disc Brakes,” Int. J. Veh. Des., 21(4/5), pp. 510–526.
Elomari, S., and Lloyd, D. J., 1996, “Thermal Expansion Behavior of Ceramic Particle Reinforced Aluminum Metal Matrix Composites,” Processing, Properties and Applications of Cast Metal Matrix Composites, P. K. Rohatgi, ed., The Minerals, Metals & Materials Society, pp. 201–211.

Figures

Grahic Jump Location
The number of hot spots and the perceived judder rating increase as the braking speed increases
Grahic Jump Location
Hot spots on aluminum drum D1 after the tests under various braking speeds: (a) after 80.5–56.4 km/h (50–35 mph) snubs (The arrow indicates the direction of the surface tracer used for the data in Fig. 3), (b) after 96.6–72.5 km/h (60–45 mph) snubs; and (c) after 113–88.6 km/h (70–55 mph) snubs.
Grahic Jump Location
Surface profiles traced on the friction surface of aluminum drum D1: (a) surface profile across the area with no hot spot after 96.6–72.5 km/h (60–45 mph) snubs; (b) surface profile across a hot spot after 80.5–56.4 km/h (50–35 mph) snubs; (c) Surface profile across a hot spot after 96.6–72.5 km/h (60–45 mph) snubs; and (d) surface profile across a hot spot after 113–88.6 km/h (70–55 mph) snubs.
Grahic Jump Location
Specific heat and thermal conductivity of the friction material L1
Grahic Jump Location
Stress versus strain curve of the friction material L1. The slope of the linear regression curve is the elastic modulus.
Grahic Jump Location
Longitudinal strain versus transverse strain of the friction material L1. The slope of the linear regression curve is Poisson’s ratio.
Grahic Jump Location
Cross-section of a brake lining and the definition of convex lining surface finish
Grahic Jump Location
Three-segmented friction lining L1
Grahic Jump Location
Friction lining L1 with a circumferential groove (7 mm wide)
Grahic Jump Location
The hot spot formation on a brake drum with grooved linings after 113–88.6 km/h snubs: (a) four spots generated at one side of friction track; and (b) Central spot separated by the nonfrictional strip.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In