E3S Web Conf.
Volume 38, 20182018 4th International Conference on Energy Materials and Environment Engineering (ICEMEE 2018)
|Number of page(s)||6|
|Published online||04 June 2018|
The Fractal Characterization of Mechanical Surface Profile Based on Power Spectral Density and Monte-Carlo Method
School of Mechanical Science and Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China
2 College of Science, Huazhong Agricultural University, 430070 Wuhan, China
3 Faculty of Engineering, University of Waterloo, N2L 3G1 Waterloo, Canada
* Corresponding author: a firstname.lastname@example.org
The analysis of rough surface morphology plays an important role in the functional characteristics of the contact surface of mechanical parts. Fractal geometry method is more accurate and sensitive than classical statistics model. For fractal representation of rough surface, it is necessary to determine the proper fractal dimension calculation method. In this research, the effect of power spectral density method is studied based on Monte-Carlo method. The fractal dimensions are calculated, the theoretical and the calculated values are compared with paired samples. And the results are compared by non-parametric test. The result shows that power spectral density method has good characterization effect on fractal simulation contour curve. In addition, the precision of fractal dimension of power spectral density is related to fractal dimension of contour theory. The estimation methods of classical power spectral density have different application range.
© The Authors, published by EDP Sciences, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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