Modelling the mechanical characteristics and on-snow performance of snowboards
Models were developed for calculating the mechanical characteristics and the on-snow performance of snowboards.The snowboards are constructed of layers of materials which may include wood, foam, honeycomb, fibre-reinforced composites and polymeric materials.The models pertaining to the mechanical characteristics provide the bending and torsional stiffnesses, the flex and the twist.A computer code (Snowboard-MECH) was written which yields numerical values for these characteristics.The model for on-snow performance simulates the travel of a snowboarder of given height, weight and skill level, down an S-shaped course.A second computer code (Snowboard-TURN) was written in support of this model; this calculates the time it takes the snowboarder to complete the course.The two computer codes were verified by comparing their outputs with laboratory data and with data generated by a snowboarder completing a prescribed S-shaped course.The results generated by the models and the data are in agreement, lending support to the models and the corresponding computer codes.A procedure is described by which the computer codes developed in this study can be utilized in the design of snowboards.
Keywordssnowboard performance model computer simulation design
Unable to display preview. Download preview PDF.
- Brennan, S.M. (2003)Modeling the Mechanical Characteristics and On-snow Performance of Snowboards. Ph.D. Thesis, Stanford University, Stanford, CA, USA.Google Scholar
- Brown, C.A. & Outwater, J.O. (1989) On the skiability of snow. In:Skiing Trauma and Safety: Seventh International Symposium, ASTM STP1022, 329–336.Google Scholar
- Buffington, K.W., Shooter, S.B., Thorpe, I.J. & Krywicki, J.J. (2001) Laboratory, Computational, and Field Study of Snowboard Dynamics.Proceedings of the 2001 TMS Materials and Science in Sports Symposium, 171–183.Google Scholar
- Chapra, S.C. & Canale, R.P. (1998)Numerical Methods for Engineers: with Programming and Software Applications (3rd ed.), p. 863 WCB/McGraw-Hill, New York, NY, USA.Google Scholar
- Kollár, L.P. & Springer, G.S. (2003)Mechanics of Composite Structures, p. 209. Cambridge University Press, New York, NY, USA.Google Scholar
- Lind, D. & Sanders, S.P. (1997)The Physics of Skiing: Skiing at the triple point. American Institute of Physics, Woodbury, NY, USA.Google Scholar
- Math Works, Inc. (2002) MATLAB Version 6.5.0 [Computer Program]. Natick, MA, USA.Google Scholar
- Roark, R.J. (1989)Roark’s Formulas for Stress and Strain (6th ed.). McGraw-Hill, Inc, New York, NY, USA.Google Scholar
- Schiele, K. (1997)The Design, Construction, and Implementation of a Flexural Rigidity (EI) Measurement System for Skis and Snowboards. M.S. Thesis, University of Washington, Seattle, WA, USA.Google Scholar
- Sutton, E.B. (2000) Better Snowboards by Design.Proceedings of IMECE: International Mechanical Engineering Congress & Exposition, November 5–10, 2000, Orlando, FL, USA.Google Scholar