Effect of dimensions of the hat and the slot in a vehicle brake disc on the thermal performance
Date Issued
2006
Date
2006
Author(s)
Chen, Shi-Han
DOI
zh-TW
Abstract
This study analyzes the thermal effects of a vehicle brake disc with various thicknesses of the hat and depths of the slot. Convective heat transfer coefficients of brake disc surfaces are calculated, and thermal effects during the brake operation are simulated by using a three-dimensional finite element model. Effects of design parameters including dimensions and boundary conditions on the temperature, deformation and stress distribution of the brake disc are investigated. The effect of the slot depth on the deformation of the brake is more significant than that of the hat thickness. With the length from the inner radius of the hat to the outer radius of the disc as the base, non-dimensional temperature decreased are presented for changing the thickness of the hat and depth of the slot. Increasing 1 % of the hat thickness lowers 0.04 % of the temperature and 0.01 % of the deformation. Increasing 1 % of the slot depth decreases 0.5 % of the temperature and 0.29 % of the deformation that. Increasing the slot depth to 6 mm decreases the maximum temperature of the disc about 30 , the deformation about 0.086 mm, the coning angle about 37.5 %, and the hoop stress about 7.1 MPa lower than these of the original disc and the disc with various thicknesses in the supporting portion.
Subjects
煞車
碟盤
熱效應
brake
disc
thermal performance
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-95-R91522631-1.pdf
Size
23.53 KB
Format
Adobe PDF
Checksum
(MD5):b1efbe9e833eecbbd8455bb927060529