Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
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APPLICATION OF FFT-BASED ANALYSIS TO CONTACT CONDITION PREDICTION FOR TRIBOLOGICAL SURFACE DESIGN

  • Sung, I.H. (Department of Mechanical Engineering, Yonsei University) ;
  • Lee, H.S. (Department of Mechanical Engineering, Yonsei University) ;
  • Kim, D.E. (Department of Mechanical Engineering, Yonsei University)
  • Published : 2002.10.21
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Abstract

In this paper, the frictional behavior according to the contact geometry was investigated using a micro-tribotester built inside a Scanning Electron Microscope (SEM) and an Atomic Force Microscope (AFM). FFT (Fast Fourier Transform) analysis for friction was conducted as a method to interpret the contact condition. From the experimental results, it could be concluded that the relative dimensions and distribution of contact asperities on the surface could be predicted by the power spectrum and main frequency in the FFT analysis of the friction signal.

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