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    • A Novel Free-Gliding Ski Tribometer for Quantification of Ski–Snow Friction with High Precision
    Authors: Sandberg, Joakim; Kalliorinne, Kalle; Hindér, Gustav;  Advisor: -;  Co-Author: - (2023)

    The nature of snow and the ever-changing environment makes measuring friction on snow and ice challenging. Additionally, due to the low friction involved, the equipment used must exhibit high sensitivity. Previous investigations of ski–snow friction have ranged from small-scale model experiments performed in the laboratory to experiments with full-sized skis outdoors. However, few have been conducted under conditions similar to those encountered during actual skiing. Here, we present a novel sled tribometer which provides highly reproducible coefficient of friction (COF) values for full-sized skis gliding at relevant speeds (approximately 5.9 m/s) in a controlled indoor environment. The relative standard deviation (RSD) of the COF is as low as 0.5%. The continuous recording of veloc...