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A major concern in designing tribo-systems is to minimize friction, saveenergy, and to reduce wear. Satisfying these requirements depends on theintegrity of the rubbing surface and its suitability to sliding conditions. Assuch, designers currently focus on constructing surfaces that are an integralpart of the function of the tribo-system. Inspirations for such constructs comefrom studying natural systems and from implementing natural design rules. Onespecies that may serve as an analogue for design is the Ball python. This isbecause such a creature while depending on legless locomotion when slidingagainst various surfaces, many of which are deemed tribologically hostile,doesn't sustain much damage. Resistance to damage in this case originates fromsurface design features. As such, studying these features and how do theycontribute to the control of friction and wear is very attractive for designpurposes. In this work we apply a multi scale surface characterization approachto study surface design features of the Python regius that are beneficial todesign high quality lubricating surfaces (such as those obtained throughplateau honing). To this end, we studied topographical features by SEM andthrough White Light Interferrometery (WLI). We further probe the roughness ofthe surface on multi scale and as a function of location within the body. Theresults are used to draw a comparison to metrological features of commercialcylinder liners obtained by plateau honing.

Python Regius (Ball Python) shed skin: Biomimetic analogue for function-targeted design of tribo-surfaces