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An Investigation of the movement of the disc/pad centre of pressure during a braking event

Fieldhouse, John D., Ashraf, Naveed and Talbot, Chris J. (2009) An Investigation of the movement of the disc/pad centre of pressure during a braking event. In: 12th EAEC European Automotive Congress 2009, 29th June 1st July 2009, Bratislava.

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Pressure-sensitive film embedded into the body of a pad friction compound is a unique technique used to measure the dynamic center 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 center of pressure may be varied both along the pad and radially. Results show a very definite movement of the center of pressure towards the center of the pad as the brake pressure is increased. In addition it is seen that a leading center 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.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Schools: School of Computing and Engineering > Automotive Engineering Research Group
School of Computing and Engineering
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Depositing User: Naveed Ashraf
Date Deposited: 01 Nov 2012 16:10
Last Modified: 01 Nov 2012 16:10


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