నైరూప్య

Shot put technique biomechanics parameter sensitivity and optimization research

Anlong Huang

Throwing problem of shot put is always influenced by many factors, so the force of the shot put, the author of this paper is analyzed, using shoot height, arm speed, Angle and throwing distance between contact, from the geometric Angle to analyze the shot put movement situation, establish a relationship with the shot put throw distance function mathematical model of ejection shot to make the model more reasonable, make further optimization of the model, and expounds the rationality of the assumptions of the model.. By further calculation on throwing model, it fixes release height and then solves shot throwing best release angle is θ±2kπ €(0,π/4], k€N€, from which θ =1/2 arccos(gh+v2)) and furthest throwing distance s=v√v2+2gh/g. By researching on air resistance and throwing angle relations as well as shot sensitivity throwing problems’ sensitivity analysis, finally it gets the conclusion that ignore air resistance is very necessary.