In ski jump, minimizing the energy loss when sliding down the track is crucial for improving
jump performance. In particular, it is essential to reduce the friction between the ice track and
the jumping ski, which is typically achieved by properly waxing the ski base according to
weather and ice conditions. Additionally, it might be possible to reduce the friction by
controlling the vibration of jumping skis as many experiments and numerical analyses have
reported that vibration can reduce the friction in both dry and wet conditions. However, they …

Friction in icy condition is a complicate phenomenon usually consisting of three
representative regimes: boundary, mixed and hydrodynamic regime. 10 Various factors may
affect the friction in these regimes including the thickness of water film, the amount of
frictional heat, velocity and apparent contact area. In ski jump, ski plates vibrate when gliding
on an icy slop, which may have an influence on the gliding performance as they can alter
these factors related to friction. Here, we present our effort to investigate the effect of …