Development of a New Embedded Dynamometer for the Measurement of Forces and Torques at the Ski-Binding Interface.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_6244B8F9C3B0
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Development of a New Embedded Dynamometer for the Measurement of Forces and Torques at the Ski-Binding Interface.
Journal
Sensors
Author(s)
Meyer F., Prenleloup A., Schorderet A.
ISSN
1424-8220 (Electronic)
ISSN-L
1424-8220
Publication state
Published
Issued date
07/10/2019
Peer-reviewed
Oui
Volume
19
Number
19
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
In alpine skiing, understanding the interaction between skiers and snow is of primary importance for both injury prevention as well as performance analysis. Risk of injuries is directly linked to constraints undergone by the skier. A force platform placed as an interface between the ski and the skier should allow a better understanding of these constraints to be obtained to thereby develop a more reliable release system of binding. It should also provide useful information to allow for better physical condition training of athletes and non-professional skiers to reduce the risk of injury. Force and torque measurements also allow for a better understanding of the skiers' technique (i.e., load evolution during turns, force distribution between left and right leg…). Therefore, the aim of this project was to develop a new embedded force platform that could be placed between the ski boot and the binding. First, the physical specifications of the dynamometer are listed as well as the measurement scope. Then, several iterations were performed on parametric 3D modeling and finite element analysis to obtain an optimal design. Two platforms were then machined and equipped with strain gauges. Finally, the calibration was performed on a dedicated test bench. The accuracy of the system was between 1.3 and 12.8% of the applied load. These results show a very good linearity of the system, which indicate a great outcome of the design. Field tests also highlighted the ease of use and reliability. This new dynamometer will allow skiers to wear their own equipment while measuring force and torque in real skiing conditions.
Keywords
alpine skiing, elite athletes, field testing, force platform, giant slalom
Pubmed
Open Access
Yes
Create date
10/10/2019 22:06
Last modification date
15/01/2021 8:09
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