钢架雪车如何实现贴壁飞行  

HOW SKELETON ATHLETES ACHIEVE HIGH-SPEED SLIDING ON THE TILTED TRACK

作　　者：马赟 张笑 孙青 霍波[1] 胡婧 王宁 MA Yun;ZHANG Xiao;SUN Qing;HUO Bo;HU Jing;WANG Ning(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China;China Media Group,Beijing 100020,China)

机构地区：[1]北京理工大学宇航学院,北京100081 [2]中央广播电视总台,北京100020

出　　处：《力学与实践》2022年第2期450-453,共4页Mechanics in Engineering

基　　金：国家自然科学基金(12002042);北京理工大学青年教师学术启动计划(XSQD-202101010);科技部重点研发计划“科技冬奥”专项;教育部第二批新工科研究与实践项目(E-SXWLHXLX20202602)资助。

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。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.

关 键 词：钢架雪车 贴壁飞行 演示实验 滑行速度 低重心 

分 类 号：O31[理学—一般力学与力学基础]