足球直接任意球运行轨迹的理论研究

A Study of the Track of Direct Free Kick in Football

直接任意球在足球比赛中已经成为重要的得分手段。通过对足球任意球运行轨迹的理论分析,计算出球运行轨迹的参数,量化了直接任意球的射门在击球力量、击球部位(偏心距)、射门角度,以及球体绕过“人墙”后的最终落点。旨在当足球比赛或训练中获得距离、角度较佳的可直接射门的任意球时,针对采用直接射门如何“绕过”人墙,提供理论依据。

Direct free kick has been one of the most important means of scoring in football matches. Based on the theoretical analysis of the track of direct free kick, this article attempted to provide parameters about the power of kicking, the part of the ball being kicked, shooting angel, and the placement of the ball over the wall.It is argued that direct free kick over the wall can be adopted when appropriate distance and better angel are both available in football matches and training.