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Establishment And Analysis Of Fractal Contact Model For Point Grinding Parts

Author

Listed:
  • CAIXIA CHAO

    (School of Mechanical Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, P. R. China)

  • SHICHAO XIU

    (��School of Mechanical Engineering and Automation, Northeastern University, Shenyang, Liaoning 110819, P. R. China)

  • YONGLE WEI

    (��School of Mechanical Engineering, Quzhou University, Quzhou, Zhejiang 324000, P. R. China)

Abstract

In this work, we establish a fractal contact model and analyze the effect of the parameters on stress. The study provided a method to make a link between contact characteristics and surface condition. The surface texture model was built based on the process mechanism of point grinding. The experiment for the effect of the surface texture on contour height was carried out on TR300 roughness shape-measuring instrument and the structural function method of fractal theory was used to obtain the fractal dimensions and scale coefficients of surfaces with different surface textures. The fractal contact model was established based on the fractal characteristics of the surface point ground and the simulation was carried out using Matlab. Furthermore, the validation of compression experiment was carried out by WAW-600C universal testing machine, the high-definition pictures before and after the experiment were obtained by KEYENCE VH-Z500R ultra-depth-of-field 3D microscope and the surface topographies before and after the experiment were obtained by NANOVEA PS50 three-dimensional noncontact surface profile meter. The obtained findings can help to choose appropriate surface with the best contact characteristics under certain condition.

Suggested Citation

  • Caixia Chao & Shichao Xiu & Yongle Wei, 2023. "Establishment And Analysis Of Fractal Contact Model For Point Grinding Parts," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 30(02), pages 1-15, February.
    • Handle: RePEc:wsi:srlxxx:v:30:y:2023:i:02:n:s0218625x23500099
    DOI: 10.1142/S0218625X23500099
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