链球投掷及飞行中的动力学问题分析

Dynamical analysis of throw weight during process of throwing and flying

从理论上对链球投掷和飞行中存在的一些动力学问题进行了研究。运用动力学理论建立了链球投掷和飞行中的基本运动微分方程,并进行了数值计算,讨论了出手速度、出手角度、空气阻力等因素对人体受力及链球飞行距离和高度的影响。所得结论可为链球投掷中一些技术问题的解决和训练水平的提高提供理论依据。

The kinetics problem of the weight throw during the throwing and flying has been studied. The differential equation of the weight throw at throwing and in flying is established by using the kinetics theory, and the numerical calculation is given. At the same time the element effect on force of human body and flight distance and altitude of the weight throw such as original velocity, angle and atmosphere resistance are also studied.The conclusion can be applied to supply theory foundation on some technique problem settlement and training level during the weight throwing.