Sliding Friction of Polyethylene on Snow and Ice
(Sprache: Englisch)
The low friction in skiing on snow is due to water films generated through frictional heating. There is, however, uncertainty about the thickness and the distribution of these waterfilms. Since direct observation of the water films is difficult, other...
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The low friction in skiing on snow is due to water films generated through frictional heating. There is, however, uncertainty about the thickness and the distribution of these waterfilms. Since direct observation of the water films is difficult, other methods are applied: large-scale tribometer measurements including temperature measurements, contact area measurements between ski and snow, and numerical modeling of snow and icefriction. The numerical model is verified by comparison with the experimentally determined friction coefficients and slider temperatures. The main conclusions are: sliding on snow and ice canbe explained by hydrodynamic principles. Unevenly distributed thinwater films are responsible for the low friction observed. The most critical parameter determining friction between skis and snow o rice is the real contact area. Ski friction can be optimized by adjusting the size and the topography of the ski base.
Autoren-Porträt von Lukas Bäurle
Lukas Bäurle was born in Luzern, Switzerland, in 1976. He earned a degree in materials science and engineering from the Swiss Federal Institute of Technology (ETH), Zurich, followed by a Ph.D. at the Swiss Federal Institute of Snow and Avalanche Research (SLF), Davos. At present, he works for Swiss Steel AG in Emmenbrücke, Switzerland.
Bibliographische Angaben
- Autor: Lukas Bäurle
- 116 Seiten, Maße: 15,1 x 22 cm, Kartoniert (TB), Englisch
- Verlag: VDM Verlag Dr. Müller
- ISBN-10: 3639036077
- ISBN-13: 9783639036077
- Erscheinungsdatum: 22.10.2013
Sprache:
Englisch
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