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Investigations of In-Plane Disc Vibration Using Laser Holography

Talbot, Chris J. and Fieldhouse, John D. (2002) Investigations of In-Plane Disc Vibration Using Laser Holography. In: 20th Annual Brake Colloquium And Exhibition, October 2002, Phoenix, AZ, USA.

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Abstract

Laser holographic methods have been successfully used to produce animations showing the out-of-plane vibrations that take place in both the disc and pad of a real brake system generating noise (squeal). A series of holograms made at different times in the cycle of vibration were used to give the data on which the animations were based. Further it has been shown that mathematical approximations made to the fringe patterns obtained in the holograms by this method give phase and amplitude information about the wave motion involved. It establishes the existence of travelling waves on the brake disc with a speed given by the angular frequency of the noise divided by the mode order.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Schools: School of Computing and Engineering
School of Computing and Engineering > Automotive Engineering Research Group
School of Computing and Engineering > Diagnostic Engineering Research Centre
School of Computing and Engineering > Diagnostic Engineering Research Centre > Measurement System and Signal Processing Research Group
School of Computing and Engineering > Pedagogical Research Group
School of Computing and Engineering > High Performance Computing Research Group
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Depositing User: Cherry Edmunds
Date Deposited: 12 Aug 2010 16:48
Last Modified: 10 Dec 2010 12:13
URI: http://eprints.hud.ac.uk/id/eprint/8261

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