Abstract
Gear system is one of impact vibrating systems in the field of mechanical engineering. Generally, various dynamical behaviors or bifurcations are arised on the impact vibrating system. These behaviors and bifurcations produce the noise or abrasion on gear system. The two-mass impact model is proposed as the simplest model of gear system. However, there is little experimental study for it. In this paper, we make an experimental device of the two-mass impact model and study the dynamical behaviors or bifurcations arised on it. On the other hand, we calculate equations of motion of this model and compare the numerical results and our experimental results. As a result, it is found that the grazing bifurcation arised on this system when the gap between masses is varied.
