摘要
通过建立乒乓球的动力数学模型,对弧圈球在每一种情况下的运动规律及运行轨迹变化曲线进行分析。结果显示:影响弧圈球运行轨迹的主要因素有乒乓球运动方向、运动速度、旋转速率、加速度及Magnus力,其中乒乓球运动方向和Magnus力的变化是改变乒乓球速度变化的重要因素;在运行过程中,球向的不断变化使弧圈球的速度及加速度也不断改变;而影响乒乓球运行轨迹的直接因素是旋转速率,且弧圈球第一弧线和第二弧线在不同旋转速率下存在着明显的区别。
Through establishing the dynamic mathematical model of table tennis, this paper makes analysis on the motion law and running track curve of the loop in each case. The results shows that the main factors effecting loop track are table tennis^s move- ment direction, movement speed, rotation speed, acceleration and Magnus force. The ping pong movement direction and Magnus force change are the main factors of changing the speed. In the process of operation, the balVs changing direction makes velocity and acceleration of the loop change continuously. The rate of rotation is the direct factor to influence the table tennis track, and the loop first arc and second arc in different rotational speed situation exist obvious differences.
出处
《河北体育学院学报》
2013年第4期79-82,共4页
Journal of Hebei Sport University
作者简介
高颖（1977-），女，辽宁抚顺人，讲师，硕士，研究方向为体育教学与训练。
