Physics – Biological Physics
Scientific paper
2010-07-26
Physics
Biological Physics
26 pages, Book Chapter; "Biomimetics - Materials, Structures and Processes. Examples, Ideas and Case Studies" ISBN: 978-3-642-
Scientific paper
A major concern in designing tribo-systems is to minimize friction, save energy, and to reduce wear. Satisfying these requirements depends on the integrity of the rubbing surface and its suitability to sliding conditions. As such, designers currently focus on constructing surfaces that are an integral part of the function of the tribo-system. Inspirations for such constructs come from studying natural systems and from implementing natural design rules. One species that may serve as an analogue for design is the Ball python. This is because such a creature while depending on legless locomotion when sliding against various surfaces, many of which are deemed tribologically hostile, doesn't sustain much damage. Resistance to damage in this case originates from surface design features. As such, studying these features and how do they contribute to the control of friction and wear is very attractive for design purposes. In this work we apply a multi scale surface characterization approach to study surface design features of the Python regius that are beneficial to design high quality lubricating surfaces (such as those obtained through plateau honing). To this end, we studied topographical features by SEM and through White Light Interferrometery (WLI). We further probe the roughness of the surface on multi scale and as a function of location within the body. The results are used to draw a comparison to metrological features of commercial cylinder liners obtained by plateau honing.
Abdel-Aal Hisham A.
Gebeshuber Ille Christine
Mansori M. El
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