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Thermal Effect of Design Parameters on the Deflection of a Disk Brake

[+] Author Affiliations
Yuan Mao Huang, Shi-Han Chen

National Taiwan University, Taipei, Taiwan

Paper No. DETC2007-34919, pp. 1005-1012; 8 pages
  • ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 7: 10th International Power Transmission and Gearing Conference
  • Las Vegas, Nevada, USA, September 4–7, 2007
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4808-6 | eISBN: 0-7918-3806-4
  • Copyright © 2007 by ASME


The deflection of a disk brake is affected by its configuration and boundary conditions. The three-dimensional finite element software ANSYS is used to analyze deflection of the disk in this study. The calculated maximum deflection occurs at the outside diameter of the disk inner board. The disk bends in the direction from the inner board toward the outer board, and the deflection coning angle of the disk is 0.4°. The calculated deflections and the coning angles of the disk are comparable with the existing data. Deflections of various disks are compared. If the thickness of the disk support region increases 1 mm, the maximum deflection decreases 0.001 mm that is about 0.2% only and it is insignificant. If the fillet radius of the support portion changes from 1 mm to 3 mm, the maximum deflection decreases 0.076 mm that it is about 15.3%. Therefore, the effect of changing the fillet radius on the deflection is more significant than that of changing the thickness of the disk support region. The mathematical model and the calculated results can be used for designing disk brakes, and a modified disk brake is recommended.

Copyright © 2007 by ASME



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