Tire–Road Contact Stiffness

A study of the laboratory polishing behavior of granite as road surfacing aggregate

“…12. Therefore, the choice, arrangement and orientation of the aggregates influences surface texture and slider penetration depth [26,27,29], which in turn affects the result of the polishing tests and skid resistance measurements.…”

“…For randomly rough surfaces with self-similarity, spectral parameters such as 2D-PSD are the important quantities which can be deduced from the measured height profiles. It has been demonstrated in [26,27,29] that the development of the power spectrum for the surface roughness can be directly correlated with the development of skid resistance measured with W/S in the laboratory. It is evident that the curves of the power spectral density (PSD) value over the wavelengths (=2p/spatial angular frequency) are linear in all cases, so that the texture is almost self-affine (see Fig.…”

“…Since experience has shown that the roughness parameters are scale-dependent [6,[25][26][27][28][29], an evaluation of the surface characteristic is performed based on the spectral analysis of the surface profile. Through Fourier transformation, the height information of the surface profiles can be transferred in the spatial frequency domain.…”

A magnification-based multi-asperity (MBMA) model of rough contact without adhesion

“…where is the relative displacement of the mid-plane of the rough surface. As suggested by (Lorenz, 2012;Wang et al, 2014), the average interfacial separation is calculated by…”

Application of three-dimensional printing to pavement texture effects on rubber friction

“…Such a concept in manufacturing, if fully developed, could go beyond the currently cited application and could make it possible to perform friction experiments precisely on a substrate which has the predefined roughness patterns of interest. In recent years, the importance of the influence of the micro-roughness on tyre-road friction has been acknowledged in many experimental studies (Chen & Wang, 2011;Do, Cerezo, Beautru, & Kane, 2013;Mahboob Kanafi, Kuosmanen, Pellinen, & Tuononen, 2015;Torbruegge & Wies, 2015;Ueckermann, Wang, Oeser, & Steinauer, 2015;Villani, Scarpas, de Bondt, Khedoe, & Artamendi, 2014;Wang et al, 2014); however, the true impact of the wide roughness spectrum from the macro scale down to the micro level has not been quantified. 3D printing is a very promising tool, as reproducible counter-surfaces for friction testing could be created from a wide range of road designs.…”