Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Study on Friction Energy of Rubber Block Under Vertical Load and Horizontal Velocity

고무블록의 수직 하중 및 수평 속도에 따른 마찰에너지 연구

  • Kim, Jin Kyu (School of Aerospace & Mechanical Engineering, Korea Aerospace Univ.) ;
  • Yoo, Sai Rom (School of Aerospace & Mechanical Engineering, Korea Aerospace Univ.) ;
  • Lee, Il Yong (School of Aerospace & Mechanical Engineering, Korea Aerospace Univ.) ;
  • Kim, Doo Man (School of Aerospace & Mechanical Engineering, Korea Aerospace Univ.)
  • 김진규 (한국항공대학교 항공우주 및 기계공학부) ;
  • 유새롬 (한국항공대학교 항공우주 및 기계공학부) ;
  • 이일용 (한국항공대학교 항공우주 및 기계공학부) ;
  • 김두만 (한국항공대학교 항공우주 및 기계공학부)
  • Received : 2012.12.28
  • Accepted : 2013.04.19
  • Published : 2013.07.01
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Abstract

Rubber is one of the most commonly used materials in various fields because of its unique viscoelastic properties. Friction occurs when a tire constantly makes contact with the ground. As a result, friction causes wear. The frictional energy caused by friction is a primary factor in the wear mechanism. The frictional energy is affected by various conditions (temperature, roughness of ground, shape of rubber, load, and materials). In this study, the analysis was preceded by considering the vertical load and the horizontal velocity to the rubber using ABAQUS/explicit. The contact pressure, and friction energy are derived using the shear force and slip distance. The actual behavior of the rubber test data were compared with the analysis results.

고무는 독특한 점탄성적 성질로 인하여 여러 분야에서 광범위하게 사용되고 있다. 고무의 마찰은 지속적인 지면과의 접지로 인하여 발생되고, 결과적으로 마모가 발생한다. 이때 마찰에 의해 발생되는 마찰에너지는 마모 메커니즘의 중요 요인으로, 마찰에너지는 온도, 지면의 거칠기, 형상, 하중, 물성 등의 조건에 영향을 받는다. 본 연구에서는 마찰에너지에 대한 수직 하중과 수평 이동속도의 영향을 ABAQUS/explicit을 이용하여 해석하였고, 접지압, 전단력과 슬립 거리를 이용하여 마찰에너지를 계산하였다. 또한 실제 고무의 거동에 대한 실험 결과와 해석 결과를 비교하였다.

Keywords

References

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