Acoustic resonances in cylinder bundles oscillating in a compressibile fluid

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This paper deals with an analytical study on acoustic resonances of elastic oscillations of a group of parallel, circular, thin cylinders in an unbounded volume of barotropic, compressible, inviscid fluid. The perturbed motion of the fluid is assumed due entirely to the flexural oscillations of the cylinders. The motion of the fluid disturbances is first formulated in a three-dimensional wave form and then casted into a two-dimensional Helmholtz equation for the harmonic motion in time and in axial space. The acoustic motion in the fluid and the elastic motion in the cylinders are solved simultaneously. Acoustic resonances were approximately determined ... continued below

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Pages: 19

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Lin, W.H. & Raptis, A.C. December 1, 1984.

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Description

This paper deals with an analytical study on acoustic resonances of elastic oscillations of a group of parallel, circular, thin cylinders in an unbounded volume of barotropic, compressible, inviscid fluid. The perturbed motion of the fluid is assumed due entirely to the flexural oscillations of the cylinders. The motion of the fluid disturbances is first formulated in a three-dimensional wave form and then casted into a two-dimensional Helmholtz equation for the harmonic motion in time and in axial space. The acoustic motion in the fluid and the elastic motion in the cylinders are solved simultaneously. Acoustic resonances were approximately determined from the secular (eigenvalue) equation by the method of successive iteration with the use of digital computers for a given set of the fluid properties and the cylinders' geometry and properties. Effects of the flexural wavenumber and the configuration of and the spacing between the cylinders on the acoustic resonances were thoroughly investigated.

Physical Description

Pages: 19

Notes

NTIS, PC A02/MF A01; 1.

Source

  • Symposium on fluid/structure interaction, New Orleans, LA, USA, 23 Jun 1985

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  • Other: DE85004066
  • Report No.: CONF-850648-1
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5716428
  • Archival Resource Key: ark:/67531/metadc1092773

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • December 1, 1984

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • April 17, 2018, 4:02 p.m.

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Lin, W.H. & Raptis, A.C. Acoustic resonances in cylinder bundles oscillating in a compressibile fluid, article, December 1, 1984; Illinois. (digital.library.unt.edu/ark:/67531/metadc1092773/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.