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Dirt absorption on the ski running surface - quantification and influence on the gliding ability
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för teknik, fysik och matematik.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för teknik, fysik och matematik.
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2006 (Engelska)Ingår i: Sports Engineering, ISSN 1369-7072, E-ISSN 1460-2687, Vol. 9, nr 3, s. 137-146Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We propose a thesis that minimizing dirt on the running surface of skis improves the surface glide. Waxing usually improves the gliding ability of skis in the short term. But how does waxing affect pollution absorption in the long term? In this study a number of skis with a transparent base and a white background were treated by steel scraping and with different glide waxes. The gliding ability of waxed and unwaxed skis, the sliding surface whiteness and the hydrophobicity were tested and documented. Tests were performed before and after the skis had been used for different distances. It was observed that all the waxed skis (regardless of the wax used) absorbed more dirt than unwaxed and as result all waxed skis lose their glide ability sooner then unwaxed (fresh scraped) skis on wet snow conditions.

Ort, förlag, år, upplaga, sidor
2006. Vol. 9, nr 3, s. 137-146
Nyckelord [en]
dirt, glide, ski, wax
Nationell ämneskategori
Maskinteknik
Identifikatorer
URN: urn:nbn:se:miun:diva-4299DOI: 10.1007/BF02844115Lokalt ID: 3977OAI: oai:DiVA.org:miun-4299DiVA, id: diva2:29331
Tillgänglig från: 2008-09-30 Skapad: 2008-12-17 Senast uppdaterad: 2017-12-12Bibliografiskt granskad
Ingår i avhandling
1. Interfacial kinetic ski friction
Öppna denna publikation i ny flik eller fönster >>Interfacial kinetic ski friction
2010 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

It is no doubt, that the ski glide over the snow is a very complicated object of

research. However, ski glide is just a one area of many other areas of human

knowledge. As a rule, the scientists and practitioners, who work in these areas,

operate with some publicly expressed more or less solid hypotheses. These

researchers work with one hypothesis until another and a better one comes up.

Our literature studies and our own observations regarding modern skis

preparations, did not give us any solid hypotheses, which are able to explain the

actual form and content of this procedure. The present work is an attempt to reveal

such hypotheses.

Conclusion: To achieve an optimal glide on skis with the base (the ski sole)

made of some high hydrophobic durable polymer, e.g. UHMWPE, PTFE; we only

have to create an adequate topography (texture) on the ski running surface,

adequate to the actual snow conditions.

 

Ort, förlag, år, upplaga, sidor
Östersund: Mittuniversitetet, 2010. s. 40
Serie
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 88
Nyckelord
ski glide, ski base, ski wax, hydrophobicity, UHMWPE, PTFE, topography
Nationell ämneskategori
Maskinteknik
Identifikatorer
urn:nbn:se:miun:diva-11525 (URN)978-91-86073-79-4 (ISBN)
Disputation
2010-06-15, F234, Campus Östersund, Östersund, 10:15 (Svenska)
Opponent
Handledare
Tillgänglig från: 2010-05-17 Skapad: 2010-05-17 Senast uppdaterad: 2010-05-17Bibliografiskt granskad

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Kuzmin, LeonidTinnsten, Mats

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Sports Engineering
Maskinteknik

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