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An Investigation of the Pad/Disc Dynamic Centre of Pressure using a 12 Piston Opposed Caliper
Technical Paper
2007-01-3960
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
25th Annual Brake Colloquium
Language:
English
Abstract
Pressure sensitive film embedded into the body of a pad friction compound is a unique technique used to measure the dynamic centre of pressure at the pad/disc interface during a normal braking operation. This paper uses of a modified 12 piston opposed caliper where the initial centre of pressure may be varied both along the pad and radially. Results show a very definite movement of the centre of pressure towards the centre of the pad as the brake pressure is increased. In addition it is seen that a leading centre of pressure (CoP) will result in noise whereas a trailing CoP gives a quiet brake. Equally a CoP towards the inner edge of the pad increases noise propensity whereas towards the outer edge a quiet brake. The results also show little influence on the CoP with disc speed.
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Authors
Citation
Fieldhouse, J., Ashraf, N., and Talbot, C., "An Investigation of the Pad/Disc Dynamic Centre of Pressure using a 12 Piston Opposed Caliper," SAE Technical Paper 2007-01-3960, 2007, https://doi.org/10.4271/2007-01-3960.Also In
SAE 2007 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V116-6; Published: 2008-08-15
Number: V116-6; Published: 2008-08-15
References
- “Measurement of the dynamic center of pressure of a brake pad during a braking operation” Fieldhouse John D Ashraf Naveed Talbot Chris The University of Huddersfield & Thierry Pasquet Franck Pujol Rejdych Gabriel Bosdch Brsaking Systems SAE Brake Colloquium 2006