Injection Molded Noise Abatement Assembly and Deployment System

摘要

Acoustic resonators are formed by injection molding or other process that allows the shape, size, orientation, and arrangement of each resonator to be customized. Customizing the features of the resonators allows their resonance frequency to be adjusted based on their intended deployment. A non-periodic or non-uniform arrangement of the resonators can increase the level of noise reduction compared to a periodic or uniform arrangement of the resonators. A chain guard includes a recess to receive a chain that supports a plurality of resonator rows or frames. In the stowed configuration, the chain guard pivots towards the row/frame to more compactly stow a panel of resonators.

主权项

1. A resonator for damping acoustic energy from a source in a liquid, the resonator comprising:
a base having a first planar surface and a second planar surface, said first and second planar surfaces parallel with one another; and a hollow body having, in a cross section orthogonal to said second planar surface of said base, a first end, a second end, and a sidewall therebetween, said second end integrally connected to said second surface of said base, said body having an aperture defined in said first end, said aperture extending from said first end to said second end, said aperture defining a volume in said hollow body, said hollow body configured to retain a gas in said volume when said resonator is disposed in said liquid while said aperture is aligned with a direction of gravitational pull.