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Estimation of dirt attraction on running surfaces of cross-country skis
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
Responsible organisation
2008 (English)In: IMPACT OF TECHNOLOGY ON SPORTS II, London, UK: Taylor & Francis, 2008, 851-856 p.Conference paper, (Other academic)
Abstract [en]

Methods for analysing impurities in snow are used in glaciology and ecological studies. However, the relationship between the dirt accumulation on the ski running surface and the concentration of pollution in the snow is not straightforward, since the interaction between the top layer of snow in the ski track and the ski running surface is responsible for the dirt accumulation on the running surface. In this paper the dirt film accumulated on the gliding surface is studied. A number of XC skis with a transparent base and a white background were examined after undergoing different treatments. Measurements of the whiteness of the running surface of the skis were carried out and glide tests were performed. The measurements and tests were repeated after skiing various distances on a ski track under varying snow conditions. The following observations were made during the study: - The experimental setup could deliver a reliable value of the whiteness of the ski running surface. We achieved 0,3% standard deviation in a test on a control sample; - The correlation between the ski glide and the amount of dirt is obvious and significant.

Place, publisher, year, edition, pages
London, UK: Taylor & Francis, 2008. 851-856 p.
Keyword [en]
glide
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-4309ISI: 252145800124Scopus ID: 2-s2.0-61849145192Local ID: 5130ISBN: 978-0-415-45695-1 (print)OAI: oai:DiVA.org:miun-4309DiVA: diva2:29341
Conference
3rd Asia-Pacific Congress on Sports Technology, Sep 23-26, 2007, Singapore
Available from: 2008-11-29 Created: 2008-11-28 Last updated: 2016-09-26Bibliographically approved
In thesis
1. Interfacial kinetic ski friction
Open this publication in new window or tab >>Interfacial kinetic ski friction
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
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.

 

Place, publisher, year, edition, pages
Östersund: Mittuniversitetet, 2010. 40 p.
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 88
Keyword
ski glide, ski base, ski wax, hydrophobicity, UHMWPE, PTFE, topography
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:miun:diva-11525 (URN)978-91-86073-79-4 (ISBN)
Public defence
2010-06-15, F234, Campus Östersund, Östersund, 10:15 (Swedish)
Opponent
Supervisors
Available from: 2010-05-17 Created: 2010-05-17 Last updated: 2010-05-17Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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