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Article
Index-matched Boundary Techniques for the Elimination of Acoustical Resonances
AIAA Journal
  • Jack H. Parker, Wright Laboratory
  • Bradley D. Duncan, University of Dayton
Document Type
Article
Publication Date
2-1-2003
Abstract
We extend the principle of optical index of refraction to apply the concept of acoustical index for transverse acoustical wave propagation in strings. The relationship between acoustical index and mass density of the acoustic material is developed. With this theoretical link established, classic index-matching techniques are explored at acoustical boundaries. Proper selection of boundary interface segments leads to the elimination of resonant vibrationalmodes that occur in rigidly supported strings, while maintaining the nonresonant vibration response.
Inclusive pages
176-181
ISBN/ISSN
0001-1452
Document Version
Published Version
Comments

Paper is made available for download in compliance with publisher policy on self-archiving. Permission documentation is on file.

Publisher
American Institute of Aeronautics and Astronautics
Peer Reviewed
Yes
Citation Information
Jack H. Parker and Bradley D. Duncan. "Index-matched Boundary Techniques for the Elimination of Acoustical Resonances" AIAA Journal Vol. 41 Iss. 2 (2003)
Available at: http://works.bepress.com/bradley_duncan/25/