Reduction of vortex-induced vibrations by locally resonant metamaterials

Abstract

Flow-induced noise and vibrations are present in a variety of sectors such as automotive and aerospace, where reducing the noise and vibration harshness behavior has become a challenging task. Due to the current ecological trends towards the use of lightweight designs, novel low mass and compact solutions are sought to improve the dynamic behavior of such designs. Locally resonant metamaterials have recently come to the fore as potential candidates due to their superior noise and vibration reduction performance as a result of their ability to create stop band behavior, i.e. frequency zones of strong vibration and/or noise attenuation. This paper experimentally investigates the potential of using locally resonant metamaterials to improve the flow-induced vibrations phenomena under the influence of vortex-shedding.