The theory of a multi-degree-of-freedom dynamic absorber

Abstract

It is shown that the simple dynamic absorber is a special case of a more general phenomenon surrounding the behaviour of multi-degree-of-freedom vibratory systems. In particular, the motion of a prescribed mass in a multiply connected mass-spring system may be absorbed by attaching an appropriately chosen system to it. By using this result, the frequency response function of a simply connected system is completely characterized. The results in this paper can be used in engineering vibrations design and may have application in system identification and control. © 1996 Academic Press Limited.