跑步运动机械能消耗的仿真与优化

Simulation and optimization about mechanic energy loss on running

研究了跑步运动的机械能消耗过程和能量优化问题。首先用运动学方法建立跑步运动机械能消耗分项计算模型和总机械能消耗模型,然后用仿真和实验的方法讨论了一个踏步的机械能消耗、并且模拟了100 m运动员的全程机械能消耗过程。研究发现:随跑动速度的增加,总机械能消耗非线性增加;将高速区的机械能调整至低速区输出可以提高运动成绩;用机械能优化图谱可以预测成绩的提高值;实验和仿真结果随着跑动速度的增加,误差增加至4%,这样的误差不妨碍仿真技术在跑步运动科研和训练中应用。

The purpose of this study is to determine how mechanic energy loss of running sports is modeled and optimized. According to kinematic method, the submodels and total model about the mechanic energy loss of running are established. The mechanic loss during one step and the function of mechanic energy loss within the distance for 100m are discussed on the basis of simulation and experiment. The results show that the total mechanic energy loss rises nonlinearly while the velocity does, the time taken in running can be reduced if the mechanic energy loss in the section of nmning at high speed is adjusted to at low one, an atlas on optimization to mechanic energy can be applied to prediet the decrease d time. The error between predicted and tested increased 4% with the rising of running velocity. It is concluded that the simulation and optimization method should be recommended in running training.