铅球运动员投掷最佳路径优化检测仿真

摘要

铅球运动员投掷时对于最佳路径的检测,可有效提高铅球运动员的比赛成绩.对铅球的投掷路径的检测,需要根据某一瞬间水平和竖直方向的速度分量参数,组建铅球投掷时最佳路径检测微分方程,完成路径的检测.传统方法根据正应力值为训练样本给出铅球初始运动的特征参数,给出铅球投掷时最佳应力参数,但无法组建路径检测微分方程,导致检测结果不准确.提出基于力学分析的铅球投掷时最佳路径检测方法.融合于生物力学原理计算出影响铅球路径的因素,组建铅球射程方程,获取铅球飞行距离的最大值,组建最佳路径变化规律模型,计算出铅球在投掷后的运动过程某一瞬间水平和竖直方向的速度分量及其阻力,组建铅球投掷时最佳路径检测微分方程,利用该方程检测铅球投掷时最佳路径.仿真结果表明,所提方法计算精度高,可以为教练员科学训练实践提供理论依据.%A detection method of optimal path during throwing shot is presented based on mechanical analysis.Firstly,the factors influencing shot path are worked out integrated with bio-mechanics.The range equation of shot is buih to obtain the maximum of shot flight distance.Then,the change rule model for optimal path is built to work out velocity component and resistance in horizontal and vertical directions respectively at some instants of motor process after throwing.Finally,the differential equation of optimal path detection during shot throw is built and used to detect the optimal path.Simulation results show that the method has high calculation precision.It can provide theoretical basis for scientific training and practicing for coaches.