Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Thermal Fluid Flow and Deformation Analysis of Medium Commercial Vehicle Ventilated Brake Disc in Braking

중형 상용차 통풍형 브레이크 디스크의 제동 시 열 유동 및 변형 해석

  • Kang, Chaeuk (Department of Mechanical Engineering, Kunsan National University) ;
  • Choi, Gyoojae (Department of Mechanical Engineering, Kunsan National University)
  • 강채욱 (군산대학교 기계자동차공학부) ;
  • 최규재 (군산대학교 기계자동차공학부)
  • Received : 2014.03.19
  • Accepted : 2014.06.02
  • Published : 2014.11.01
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Abstract

Domestic automobile companies have adopted drum type brake system for commercial vehicles. However recently those companies have been applying disc-brake system to solve vehicle control-instability and inefficient heat discharge performance of conventional drum brake system for a medium commercial vehicle. Because the kinetic energy of a running commercial vehicle is relatively high, the brake system should discharge lots of heat energy while braking. A ventilated type brake disc has been used to increase heat discharge performance of a brake system. The vent structure of a disc highly affects cooling efficiency. This paper compares thermal characteristics of three types of vent structure in JASO C421 braking condition. It is found that the slant bend type disc has the lowest temperature and thermal stress distributions in the braking condition.

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References

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