Magnetic Vibration Absorber for Controlling Beam Vibration

Abstract

In the realm of engineering structures, such as beams, the occurrence of unwanted vibrations
poses significant challenges, including fatigue, discomfort, noise, and potential structural failure.
To address these issues, vibration absorbers are extensively employed to mitigate and manage
excessive vibration. A critical factor determining their efficacy is ensuring that the absorber's
frequency aligns with the excitation frequency to effectively dampen system vibration. This paper
aims to investigate the optimal spacing between the vibration absorber's magnets, recognizing the
direct correlation between magnet spacing and the absorber's stiffness. Consequently, variations
in stiffness induce corresponding changes in frequency. By studying these relationships, this
research seeks to elucidate the precise magnet spacing required to tune the absorber's frequency
to match the excitation frequency of the cantilever beam. Such tuning facilitates the efficient
minimization of beam vibration when subjected to the excitation frequency. This study underscores
the paramount importance of precise magnet spacing in designing vibration absorbers that
resonate harmoniously with the excitation frequency, thereby enhancing structural integrity and
mitigating unwanted vibrations.