Vibration Control of a Rotating Disk Subjected to a Periodic External Force by Dynamic Absorbers

Abstract

This paper describes the vibration control of a rotating disk to which some dynamic absorbers are attached in several arrangements for the case that the rotating disk is subjected to an axial external force fixed in space at a point on the outer circumference of the disk. The effects of the rotation of disk and of the coupling among characteristic modes are taken into account in the theoretical analysis. From the numerical computational results, the authors clarified the relationship between arrangement of dynamic absorbers in the circumferential direction and vibration control of disk and so on, and suggested the possibility of the optimal arrangement of the dynamic absorbers. The analytical results were qualitatively verified through experiment.