Unveiling Ice Friction and Aerodynamic Drag at the Initial Stage of Sliding on Ice: Faster Sliding in Winter Sports
Tribology International 2021
Mārtiņš Irbe, Kārlis-Agris Gross, Jānis Vība, Marina Čerpinska

Reducing friction is an unending challenge in winter sports. Decisive improvements in sport equipment hinge on a precise prediction of resistance forces; the dynamic sliding friction-coefficient at low speed is still unclear and hampers progress. Two approaches disclosed changes in the coefficient-of-friction: two numerical models and an experimental model. We obtained accurate experimental data on the resistance coefficients from timing sensors on an ice track and a small accelerometer on the skeleton. A comparison of acceleration from the accelerometer with a numerical model showed a transition from static friction to kinetic friction, as "stick and slip" faded at 6 m/s. Speed and acceleration from this new approach will facilitate further investigations on sliding in bends on the ice track.


Keywords
Skeleton, Sliding friction, Ice friction, Accelerometer, Modeling, Stick and slip
DOI
10.1016/j.triboint.2021.106967
Hyperlink
https://www.sciencedirect.com/science/article/pii/S0301679X21001158?via%3Dihub

Irbe, M., Gross, K., Vība, J., Čerpinska, M. Unveiling Ice Friction and Aerodynamic Drag at the Initial Stage of Sliding on Ice: Faster Sliding in Winter Sports. Tribology International, 2021, Vol. 160, Article number 106967. Available from: doi:10.1016/j.triboint.2021.106967

Publication language
English (en)
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