<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In this paper, calculations of 3D parameter <italic>Vm</italic> (material volume) of surfaces with irregular roughness and comparison with experimental data were performed, with further application of this parameter in calculations of wear intensity. First, using Mountains Map software for profilometric measurements, 3D roughness processing and determination of material volume <italic>Vm</italic> at specific relative levels γ were performed. The next step was an additional analysis of the distribution of surface ordinates using a theoretical and experimental Laplace function. The given check confirmed that for mostly surfaces with irregular roughness the ordinate distribution corresponds to the normal Gaussian distribution law, but in cases when the asymmetry of the ordinate distribution function goes outside the permissible limits (|∆<italic>Ssk</italic>|> 10%), errors> 10 % occur. On this basis, the mathematical formula of the material volume <italic>Vm</italic> was derived, and the obtained calculations were compared with the measured values. The results showed that the calculated values of the parameter <italic>Vm</italic> were very close to the experimental data (|∆<italic>Vm|</italic>&lt;10 %), while at the relative level γ=+3, errors occurred that was related to the deviation from the normal distribution law. It was concluded that the given parameter could be used in the calculations of linear wear intensity, knowing the relative level γ.</p>
</abstract>

In this paper, calculations of 3D parameter Vm (material volume) of surfaces with irregular roughness and comparison with experimental data were performed, with further application of this parameter in calculations of wear intensity. First, using Mountains Map software for profilometric measurements, 3D roughness processing and determination of material volume Vm at specific relative levels γ were performed. The next step was an additional analysis of the distribution of surface ordinates using a theoretical and experimental Laplace function. The given check confirmed that for mostly surfaces with irregular roughness the ordinate distribution corresponds to the normal Gaussian distribution law, but in cases when the asymmetry of the ordinate distribution function goes outside the permissible limits (|∆Ssk|> 10%), errors> 10 % occur. On this basis, the mathematical formula of the material volume Vm was derived, and the obtained calculations were compared with the measured values. The results showed that the calculated values of the parameter Vm were very close to the experimental data (|∆Vm|<10 %), while at the relative level γ=+3, errors occurred that was related to the deviation from the normal distribution law. It was concluded that the given parameter could be used in the calculations of linear wear intensity, knowing the relative level γ.

Application of 3D Roughness Parameters for Wear Intensity Calculations

Latvian Journal of Physics and Technical Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Application of 3D Roughness Parameters for Wear Intensity Calculations"}

In this paper, calculations of 3D parameter Vm (material volume) of surfaces with irregular roughness and comparison with experimental data were performed,...

Application of 3D Roughness Parameters for Wear Intensity Calculations

Published Online: Oct 08, 2021

Page range: 27 - 37

DOI: https://doi.org/10.2478/lpts-2021-0037

Keywords
3D roughness parameters, friction, material volume, wear

© 2021 N. Bulaha et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Application of 3D Roughness Parameters for Wear Intensity Calculations

Published Online: Oct 08, 2021

Page range: 27 - 37

DOI: https://doi.org/10.2478/lpts-2021-0037

Keywords3D roughness parameters, friction, material volume, wear

© 2021 N. Bulaha et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
3D roughness parameters, friction, material volume, wear