Brake disc hot spotting and thermal judder: an experimental and finite element study Online publication date: Mon, 18-Aug-2003
by T.K. Kao, J.W. Richmond, A. Douarre
International Journal of Vehicle Design (IJVD), Vol. 23, No. 3/4, 2000
Abstract: The paper covers the development and application of finite element techniques to thermo-mechanical instability in braking and brake disc hot judder. After a brief review of the phenomena of thermo-mechanical instability in braking and disc thermal judder, this paper describes and analyses experimental results of hot judder testing carried out on a dynamometer. Development of axisymmetric and 3D thermo-mechanical FE models capable of dealing with localised heat generation and wear is then described, with examples to illustrate their application to hot judder simulation. Through use of the 3D thermo-mechanical simulation together with the detailed analysis of experimental results, it is found that the out-of-phase thermoelastic ''buckling instability'' is a significant factor causing hot spotting and hot judder. This new finding contributes to the fundamental understanding of the phenomena and widens the scope to improve the brake system performance in the relevant aspects.
Online publication date: Mon, 18-Aug-2003
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Vehicle Design (IJVD):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email firstname.lastname@example.org