Collision dynamic analysis of the break down in the rugby football

本研究旨在分析英式橄榄球的接触式打法，并建构碰撞动力学模型。为此，在真实的运动员身上安装了微惯性传感器，测量了实际技术（铲球和侧步）的运动特性。对传感器信号应用（1）位置角转换、（2）电噪声降低和（3）跨度误差（漂移误差）校正。对真实的橄榄球运动员的测量被重复。在这项研究中，它成功地测量了运动的橄榄球运动员的属性在几秒钟的实际技术。将测量结果的碰撞力和运动轨迹与真实的值（真值）进行比较，并且可以以大约50%的概率进行测量。

The purpose of this study is analyzing a contact play of the rugby football and is the construction of the collision dynamics model. Therefore a micro inertial sensor was put on a real player, and the motion properties of practical skills (tackles and side steps) were measured. (1)position angle conversion, (2)electrical noise reduction and (3)span error (drift error) correction were applied to sensor signal. And the measurement for the real rugby player was repeated. In this study, it succeeded to measure motion of rugby player properties in the practical skill for several seconds. A crash force and the motion trace of the measurement result were compared with the real value (truth value), and a measurement was possible with probability of the approximately 50%.