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The Role of Climatic Conditions on Disc Brake Noise
Technical Paper
2006-01-3209
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Since the brake colloquium in 2004 the role of climatic conditions and their relations to noise occurrence, sound pressure level and friction coefficient level is widely discussed in the US and European working groups on brake noise.
A systematic study has been started to investigate the influence of relative humidity, absolute humidity and temperature on brake noise and the corresponding friction coefficient level.
In this study an enormous effort was taken to keep the influences of the brake parameters, e.g. lining material, Eigenfrequencies and dimensions of the different components as small as possible to investigate the climatic influence only.
Strategic humidity and temperature levels were tested according to the Mollier-Entropy-Enthalpy-Diagram which are corresponding to the seasons in the various international regions.
A regression analysis evaluates the correlation and the influence of each parameter to noise and friction coefficient level.
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Citation
Koch, M., Blaschke, P., and Willner, K., "The Role of Climatic Conditions on Disc Brake Noise," SAE Technical Paper 2006-01-3209, 2006, https://doi.org/10.4271/2006-01-3209.Also In
References
- Eriksson, M. Lundqvist, A. Jacobson, S. “A study of the influence of humidity on the friction and squeal generation of automotive brake pads” 2001 IMechE Proc Instn Mech Engrs 215
- Blaschke, P. Rumold, W. “Global NVH matrix for Brake noise - A Bosch Proposal” 1999 SAE Brake Colloquium, 1999-01-3405
- US Working Group on Brake NVH “SAE J2521 - Disc Brake Dynamometer squeal noise Matrix” 2005 SAE International