摘要
采用数值仿真计算法,探讨助滑坡长度、过渡区长度和跳台尺寸改变对运动员出台速度的影响,并采用10名国家队运动员(男性5名,女性5名)实地运动学数据进行验证仿真跳台尺寸变化对出台速度的影响过程。研究表明,在两周台、三周台最大速度和出台速度等主要参数上与实验数据均较为符合,呈显著正相关,证明了模型的有效性。当助滑出发距离增加了10 m时,出台速度增加1.1 m/s;过渡区长度从10 m增加到15 m时,出台速度从11 m/s降至9 m/s;当运动员在相同位置出发,过渡区长度相同时,两周台出台速度较三周台快2 m/s;随着跳台弧度角的增大,出台速度逐渐减小,跳台弧度角每增加5°,出台速度减小0.2 m/s。
The study used numerical simulation calculation methods to measure 10 national team athletes(5 males and 5 females),and explored the effect of help slip distance change,the transition zone length change and the jumping platform size change on the take-off speed.The changing effect of the jump table size on the take-off speed was simulated.The simulation results were consistent with the experimental data on the main parameters such as the maximum speed and the take-off speed of double and triple platforms.When the slip distance increased by 10 m,the take-off speed increased by 1.1 m/s.When the length of transition zone changes from 10 m to 15 m,the take-off speed decreased from 11 m/s to 9 m/s.When the slip distance was same as the transition zone length,the jumping speed from double platform was 2 m/s faster than that from triple platform.With the increasing of radian angle of platform,the take-off speed declined.When the radian angle increased by 5°,the take-off speed decreased by 0.2 m/s.
作者
刘忠源
李东
付彦铭
王新
LIU Zhongyuan;LI Dong;FU Yanming;WANG Xin(Shenyang Sport University,Shenyang 110102,China;Northeastern University,Shenyang 110819,China)
出处
《中国体育科技》
CSSCI
北大核心
2020年第12期78-82,共5页
China Sport Science and Technology
基金
国家重点研发计划“科技冬奥”重点专项(2018YFF0300502)
辽宁省高等学校创新团队项目(WT2019005)
辽宁省科学技术计划项目(2020JH2/10300112)
辽宁省自然科学基金计划指导计划项目(2019-ZD-0517)。
