2021
DOI: 10.21203/rs.3.rs-527873/v1
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A Three-Dimensional Fractal Contact Model for a Rough Friction Surface With Multiple-Scale Asperities

Abstract: This paper describes a new fractal contact model for a rough three-dimensional friction surface considering scale dependence. The model predicts the total contact area as a function of contact load. The microcontact fractal model for asperities at multiple-scale levels is derived. The truncated area distribution function of asperities at multiple-scale levels is revised. The effects of each scale level and fractal parameters on the proposed model are evaluated by numerical simulations. Results obtained from th… Show more

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Cited by 2 publications
(1 citation statement)
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“…Lan et al [39] proposed a normal contact stiffness model of a 3D rough surface via the fractal theory and analyzed the influence of fractal parameters on normal contact stiffness. Liang et al [40] established a new multiscale fractal contact model of a 3D rough surface based on 3D fractal theory, and verified the accuracy of the multiscale complex fractal model. In the above studies, the 3D fractal contact model was used to improve the accuracy of the results in studying rough surface, but most of them characterized 3D isotropic rough surfaces.…”
Section: Introductionmentioning
confidence: 97%
“…Lan et al [39] proposed a normal contact stiffness model of a 3D rough surface via the fractal theory and analyzed the influence of fractal parameters on normal contact stiffness. Liang et al [40] established a new multiscale fractal contact model of a 3D rough surface based on 3D fractal theory, and verified the accuracy of the multiscale complex fractal model. In the above studies, the 3D fractal contact model was used to improve the accuracy of the results in studying rough surface, but most of them characterized 3D isotropic rough surfaces.…”
Section: Introductionmentioning
confidence: 97%