长距离场地自行车运动员骑行中的迎风面积研究  

Study of the Windward Area in the Long-distance Track Cyclists

作　　者：齐华 李赛 马文勇[2] 柴建中 刘阳 QI Hua;LI Sai;MA Wen-yong;CHAI Jian-zhong;LIU Yang(Hebei Institute of Sports Science,Shijiazhuang 050011,China;Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]河北省体育科学研究所竞技体育研究室,河北石家庄050011 [2]石家庄铁道大学,河北石家庄050043

出　　处：《浙江体育科学》2024年第1期102-107,共6页Zhejiang Sport Science

基　　金：河北省重点研发计划项目(20375702D)《河北省优势项目新技战术空气动力学技术优化研究》。

摘　　要：研究目的:在长距离场地自行车比赛中,当运动员输出功率相近时,空气阻力是影响成绩的主要因素,而运动员迎风面积的测定是空气阻力研究中的关键因素。为精确测定不同形态运动员在不同骑行姿态时的迎风面积,研究采用平面测量法进行测试。研究方法:使用数码相机采集运动员的正面图像信息,利用CAD网格矫正图像畸变,得到了4名运动员不同躯干角度的迎风面积结果。研究结果:(1)迎风面积值在0.32~0.35 m~2之间,其中运动员2在8°和16°时值最大,躯干特征参数占比最大;(2)迎风面积在躯干面积较大时对骑行姿态变化较为敏感,并分析得到了迎风面积的估算模型,可为教练员和运动员的训练与比赛提供较为准确的数据参考。In the long-distance cycling competition,when the athletes output power was similar,air resistance was the main factor affecting the performance.Determination athletes'windward area was the key to air resistance research.In order to determine the windward area of different shape athletes in different cycling poses accurately,this study tested by the plane measurement method.Methods:This method collected frontal image information of athletes using a digital camera,and then used CAD grid-corrected image distortion to obtain relatively accurate windward area results for four athletes.Conclusions:①The value of the windward area was between 0.32 and 0.35 m2,Athletes 2 has the largest value at 8°and 16°,and the largest proportion of trunk feature parameters;②The windward area was more sensitive to cycling posture changes when the trunk area was large.The estimation model of the windward area was analyzed,which can provide more accurate data reference for the training and competition of coaches and athletes.

关 键 词：迎风面积测量 场地自行车 空气阻力 平面测量法 迎风面积估算模型 

分 类 号：G804.63[文化科学—运动人体科学]