This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Towards a Control Theory Interpretation of Material Ingredients' Impact on Friction Performance
Technical Paper
2010-01-1671
ISSN: 0148-7191, e-ISSN: 2688-3627
Sector:
Language:
English
Abstract
Brake pad materials in today's commercially marketed vehicles are usually complex phenolic resin based composites with numerous ingredients. Since the abandonment of asbestos fibers, different material classes evolved in Europe (low steel), North America (semimet) and Asia (NAO), which specifically meet the requirements of the respective market [
1
]. For these complex materials, no a-priori prediction of friction and wear performance is possible today [
2
].
Research over the past decade revealed that friction power and wear debris are interrelated [
3
] and that the topography of the friction layer shows a very rich dynamic [
4
]. The respective processes can be well described with a family of dynamic friction laws, which is suitable for the description of AK-Master test results [
5
], as well as for the understanding of history dependent high frequency effects.
Up to now, we have modeled these processes by classical cellular automata methods, which picture the surface in microscopic details [
6
]. Recent investigations indicate that the generic interactions within these boundary layer dynamics can be interpreted as stable control loops, nature uses to protect surfaces in frictional contacts. This approach opens new insights into the interrelation between material composition and friction for brake pads, where the ingredients modulate the parameters of the control loops.
Recommended Content
Authors
Topic
Citation
Ostermeyer, G. and Bode, K., "Towards a Control Theory Interpretation of Material Ingredients' Impact on Friction Performance," SAE Technical Paper 2010-01-1671, 2010, https://doi.org/10.4271/2010-01-1671.Also In
References
- Chan, D. Stachowiak, G.W. 2004 Review of automotive brake friction materials Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 218 9 953 966
- Xiao, G. Zhu, Z. 2010 Friction materials development by using DOE/RSM and artificial neural network Tribology International 43 1-2 218 227
- Eriksson, M. Lord, J. Jacobson, S. 2001 Wear and contact conditions of brake pads: Dynamical in situ studies of pads on glass Wear 249 3-4 272 278
- Ostermeyer, G.-P. 2001 Friction and wear of brake systems Forschung im Ingenieurwesen/Engineering Research 66 6 267 272
- Ostermeyer, G.-P. Bode, K. 2008 On Dynamic Friction Phenomena in Brake Systems Fischer, A. Friction, Wear and Wear Protection Weinheim WILEY-VCH 2009 301 306
- Mueller, M. Ostermeyer, G.-P. Graf, M. “Towards an Explicit Computation of Wear in Brake Materials,” SAE Technical Paper 2009-01-3048 2009 10.4271/2009-01-3048
- Severin, D. Doersch, S. 2001 Friction mechanism in industrial brakes Wear 249 9 771 779
- Ostermeyer, G.-P. “On Tangential Friction Induced Vibrations in Brake Systems,” SAE Int. J. Passeng. Cars - Mech. Syst. 1 1 1251 1257 2008 10.4271/2008-01-2580
- Oesterle, W. et al. 2007 Towards a better understanding of brake friction materials Wear 263 7-12 1189 1201
- Eriksson, M. Bergmann, F. Jacobsen, S. 1999 Surface characterisation of brake pads after running under silent and squealing conditions Wear 232 2 163 167