ONR NURP Acoustic Metamaterials for Undersea Applications

Abstract

The main focus of the technical work in this project was the development of thin, lightweight, highly acoustically absorptive metamaterials for naval undersea applications. Two main areas of work were completed under the program. First, an extensive modeling and simulation effort was done to provide parametric studies of the effects of resonator geometry on normally incident acoustic absorption. Studies were also completed to determine proper finite element meshing resolution.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 04, 2020
Accession Number
AD1128425

Entities

People

  • Michael Roan

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Absorption Spectra
  • Acoustic Absorption
  • Acoustic Metamaterials
  • Acoustic Propagation
  • Acoustic Properties
  • Acoustic Scattering
  • Acoustic Waveguides
  • Acoustic Waves
  • Acoustics
  • Additive Manufacturing
  • Advanced Materials
  • Frequency
  • Frequency Bands
  • Geometry
  • Manufacturing
  • Materials
  • Materials Science
  • Measurement
  • Metamaterials
  • Sound Pressure
  • Sound Waves
  • Standing Wave Ratios
  • Standing Waves
  • Transmission Loss
  • Underwater Vehicles
  • Waves

Readers

  • Acoustical Oceanography.
  • Computational Fluid Dynamics (CFD)
  • Technical Research and Report Writing.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems