Abstract
This paper deals with experimental results of countermeasure against the polygonal deformation phenomena accompanied by wear. The authors made an experimental equipment which has a single degree-of-freedom polygonal deformation system and a dynamic absorber. According to the results of the experiments using and not-using dynamic absorber, it is confirmed that dynamic absorber has the delaying effect of polygonal deformation phenomena accompanied by wear. and influence of parameters of dynamic absorber on the delaying effect of polygonal deformation phenomena accompanied by wear.