Considerations on Dynamic Bending Deformation of a Ski : Effects of Vertical Forces and Bending Moments

Abstract

To discuss the dynamics of skiing, it is very important to understand forces and moments acting on the skier, ski equipment and snow. The purpose of the present study is to clarify numerically the reacting forces acting on a ski through snow. The reacting force is caused by the relative displace-ment between the ski and snow. On the other hand, the deformation of the skis and snow depends on the mechanical properties of the skis and snow. First, a numerical approach is proposed for estimating the deformation of the skis and snow. Next, numerical calculations are carried out for the ski subjected to vertical force and moment due to upweighting. Effects of flexural rigidity of the ski, camber height of the ski and spring modulus of snow on the reacting force are discussed.