Downhill skateboard aerodynamics

Downhill Motion of the Skater-Skateboard System

The lateral instabilities of vehicles are well-known phenomena, see for example, the shimmy motions of bikes, motorbikes or the steered wheels of cars. Another interesting phenomenon is the snaking motion of the skateboard-skater system that is analyzed in this study. A mechanical model of the downhill skateboarding is constructed in order to consider the effect of the slope angle on the stabil...

Skateboard injuries.

Longboard and skateboard injuries.

INTRODUCTION The causes and events related to skateboarding injuries have been widely documented. However, little is known about longboard-related injuries. With five deaths linked to longboarding in the United States and Canada in 2012, some cities are already considering banning the practice. This study compared the types and causes of longboarding-related injuries to those associated with sk...

Skateboard Park Participation: A Means-End Analysis

Skateboarding has become a highly visible and popular activity. However, many negative stereotypes remain associated with the activity and its participants (Jones & Graves, 2000). In contrast to the negative stereotypes, skateboarding seems to provide many individuals, and youth in particular, with an important outlet for physical activity, leisure, and personal development. The purpose of this...

Stabilizing skateboard speed-wobble with reflex delay.

A simple mechanical model of the skateboard-skater system is analysed, in which the effect of human control is considered by means of a linear proportional-derivative (PD) controller with delay. The equations of motion of this non-holonomic system are neutral delay-differential equations. A linear stability analysis of the rectilinear motion is carried out analytically. It is shown how to vary ...