721 Pattern Formation Phenomena in Contact Rotating Systems : Experimental Verification of Prevention Method for Viscoelastic Model

Abstract

The major occurrence mechanism of pattern formation phenomena has been considered unstable vibrations generated in linear time delay systems. A stabilization of the system using a dynamic absorber was proposed as one of prevention methods, and the validity was confirmed from numerical analysis. In this report, an experimental setup of the viscoelastic system was fabricated in order to verify the validity of dynamic absorber and its design method using a new stability analysis method developed by the authors. The results for single-degree-of-freedom system indicate that the prevention method using a dynamic absorber is effective for the pattern formation phenomena.