Title:
Experimental Investigation of Dither Control on Effective Braking Torque

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dc.contributor.advisor Cunefare, Kenneth A.
dc.contributor.author Badertscher, Jeff (Jeffrey William) en_US
dc.contributor.committeeMember Al Ferri
dc.contributor.committeeMember Lynch, Christopher S.
dc.contributor.department Mechanical Engineering en_US
dc.date.accessioned 2005-09-16T14:59:56Z
dc.date.available 2005-09-16T14:59:56Z
dc.date.issued 2005-05-18 en_US
dc.description.abstract Dither control is a method of introducing high frequency control efforts into a system to suppress a lower frequency disturbance. Dither control is an effective means of suppressing automotive brake squeal. Brake squeal is a problem that has plagued the automotive industry for years. In fact many makers of materials for brake pads spend up to 50% of their engineering budgets on noise, vibration and harshness issues. A normal dither signal may be introduced to an automotive braking system by placing a piezoceramic stack actuator in the piston of a floating caliper brake. Many theoretical models indicate a reduction in the braking torque due to the dither signal. Under the assumption of Hertzian contact stiffness the loss in braking torque is due to lowering of the average normal force. There are also theories that the dither signal eliminates the stick-slip oscillation causing an effective decrease in the friction force. Yet another theory indicates that the effective contact area is reduced, lowering the mean coefficient of friction. It is not apparent whether any of these models accurately portrays the interaction of the brake pads and rotor. en_US
dc.description.degree M.S. en_US
dc.format.extent 1808271 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/7119
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Dither en_US
dc.subject Control
dc.subject Brakes
dc.subject Squeal
dc.title Experimental Investigation of Dither Control on Effective Braking Torque en_US
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.corporatename George W. Woodruff School of Mechanical Engineering
local.contributor.corporatename College of Engineering
relation.isOrgUnitOfPublication c01ff908-c25f-439b-bf10-a074ed886bb7
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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