钢架雪车如何实现贴壁飞行1)

HOW SKELETON ATHLETES ACHIEVE HIGH-SPEED SLIDING ON THE TILTED TRACK1)

  • 摘要: 针对冬季奥运会的钢架雪车比赛项目,通过运用达朗贝尔原理,本文阐述了钢架雪车运动员在比赛过弯阶段实现贴壁"飞行"的力学原理,设计制作了实验道具并开展了演示实验,阐明了适当的滑行速度和低重心是钢架雪车运动员安全顺利过弯的重要因素。本文还讨论了本演示实验在理论力学教学中的应用前景。

     

    Abstract: It explains the mechanics why athletes for the skeleton sport in the Winter Olympic Games are able to achieve high-speed sliding on the tilted track, using the d'Alembert principle. Though careful design and implantation of experiments, it reveals that mainly two factors, i.e., appropriate sliding speed and low center of gravity, determine whether athletes can smoothly and safely pass the curved section of the track. In addition, more similar demonstration experiments can be used in the future to promote the teaching work for the theoretical mechanics.

     

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