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Low-frequency drum brake noise investigation using a 1/4 vehicle test rig

Fieldhouse, John D. and Beveridge, C. (2000) Low-frequency drum brake noise investigation using a 1/4 vehicle test rig. In: 18th SAE International Congress and Exposition, 6-9 March 2000, Detroit USA.

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A test rig which replicates a one-quarter vehicle of a rear-wheel-drive vehicle, including the suspension system, is used to investigate a low-frequency noise. The cross beam is included along with the vehicle suspension spring which is loaded against a sprung loaded mechanism that represents the tire stiffness exactly and supports the brake geometrically as the tire would. Drive to the drum is from a DC motor through the wheel drive axle.

Holographic Interferometry is used to observe the modes of vibration of the drum with mirrors strategically placed to observe additional features such as the backplate, spring pan and cross beam.

Initial results show the mode of vibration of the backplate to be of a diametral mode order and to be moving in the direction of drum rotation. Additionally it is seen that the spring pan and cross beam exhibit high amplitudes of vibration.

Additional tests are then undertaken with the suspension members omitted and the brake arranged to allow visual access to the brake shoes.

The development of a (r) vehicle test rig is outlined and discussed.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > T Technology (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 > Pedagogical Research Group
School of Computing and Engineering > High-Performance Intelligent Computing > High Performance Computing Research Group
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Depositing User: Sharon Beastall
Date Deposited: 18 Jun 2010 11:37
Last Modified: 28 Aug 2021 10:57


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