Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Characteristics of Aggression and Brake Judder by Different ZrSiO4 Particle Size

지르콘 입도 크기에 따른 디스크 공격성과 브레이크 져드 특성

  • Lee, GirHyoung (Test Team, Saeronautomotive Co.) ;
  • Kang, KukHyoun (Department of Engineering Chemistry, Chungbuk National University) ;
  • Lee, DongKyu (Department of Engineering Chemistry, Chungbuk National University)
  • Received : 2014.05.29
  • Accepted : 2014.07.22
  • Published : 2014.11.01
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Abstract

Recently, according to the advances of vehicle manufacturing technology and the fuel-efficient vehicles, the weight of the vehicle body has been reduced and quietness of the vehicle has been increased. So that, as the emotional qualities of cars, such as NVH, are emphasized in recent years. Also required to be established of the effective measure for brake Judder. The Judder was caused by the increase in DTV by the uneven thermo metamorphosis of brake disc and the partial abrasion of disc. In this study, the disc aggression by friction materials was confirmed and the improving methods of friction materials in connection with the abrasive characteristics reviewed of $ZrSiO_4$ each particle size(under $3{\mu}m$, $5{\sim}10{\mu}m$ and over $15{\mu}m$). In addition, the study is institute make use of limit for $ZrSiO_4$ raw-material particle size and vol% in friction materials. At the result, the optimum size of $ZrSiO_4$ particles was confirmed about 5 to $10{\mu}m$.

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References

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