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contributor authorKwangjin Lee
contributor authorFrank W. Brooks
date accessioned2017-05-09T00:11:34Z
date available2017-05-09T00:11:34Z
date copyrightJanuary, 2003
date issued2003
identifier issn0742-4787
identifier otherJOTRE9-28712#44_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/129194
description abstractHot spotting and judder phenomena were observed in automotive aluminum drum brakes. A vehicle judder test schedule was developed to determine the critical speed for thermoelastic instability (TEI). The brake material properties relevant to the TEI analysis were measured as a function of temperature. The critical speeds for the brake systems with different drum materials were determined by the judder schedule and they are compared with the analytical predictions of Lee (2000). The brake drums and linings were then modified and tested in order to investigate its effects on the hot spotting and judder propensity. The design modifications include brake linings with a different compound, stress-relieved drums, linings with a convex or concave surface finish, three-segmented linings, and linings with a circumferential groove. The linings with a circumferencial groove effectively reduce the size of hot spots and the best judder rating was achieved.
publisherThe American Society of Mechanical Engineers (ASME)
titleHot Spotting and Judder Phenomena in Aluminum Drum Brakes
typeJournal Paper
journal volume125
journal issue1
journal titleJournal of Tribology
identifier doi10.1115/1.1506315
journal fristpage44
journal lastpage51
identifier eissn1528-8897
keywordsFriction
keywordsTemperature
keywordsAluminum
keywordsVehicles
keywordsAutomotive brakes
keywordsBrakes
keywordsStress
keywordsMaterials properties
keywordsLinings (Textiles)
keywordsBraking
keywordsVibration
keywordsDesign
keywordsDisks AND Friction materials
treeJournal of Tribology:;2003:;volume( 125 ):;issue: 001
contenttypeFulltext


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