Abstract
A free-free beam consisting of a steel plate with zigzag shapes is used for a vibration absorber which is able to be set in a small space. Its multiple anti-resonance frequencies are able to deal with driving forces due to its high order components. In this paper, by modeling the vibration absorber with zigzag shapes on a multi-jointed beam, we propose a method to calculate the anti-resonance frequencies and the equivalent masses for designing the shape of the vibration absorber. As a result, we tuned to multiple anti-resonance frequencies to each driving force with first, second and third vibrational overtone.
