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http://dx.doi.org/10.3795/KSME-A.2011.35.4.425

Analysis of Hot Judder of Disc Brakes for Automotives by Using Finite Element Method  

Jung, Sung-Pil (Dept. of Mechanical Engineering, Ajou Univ.)
Park, Tae-Won (Dept. of Mechanical Engineering, Ajou Univ.)
Chung, Won-Sun (Korea Automotive Technology Institute)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.35, no.4, 2011 , pp. 425-431 More about this Journal
Abstract
Thermal energy generated because of the friction between the disc and pad is transferred to both sides and causes thermal expansion of the material, which affects the contact pressure distribution. This phenomenon, which is called thermoelastic instability (TEI), is affected by the natural mode of a disc. TEI results in the formation of a hot spot and causes hot judder vibrations. In this study, three-dimensional analysis of the hot judder of a ventilated disc for automotives was performed by using the commercial finite element analysis program, SAMCEF. The intermediate processor based on a staggered approach was used to exchange the result data of the mechanical and thermal model. The hot spot was formed on the surface of the disc, and the number of hot spots was compared with the natural mode of the disc.
Keywords
Friction Contact; Thermo-Elastic Instability; Hot Spot; Hot Judder Vibration; Intermediate Processor;
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Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 0
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