DISPERSIVE EFFECTS OF LINERS ON NONLINEAR WAVE PROPAGATION IN DUCTS

The theoretical techniques to analyze nonlinear wave propagation in lined ducts are developed. Three major problems are considered: (1) determination of the liner properties that produce strong dispersion and thereby inhibit energy exchange between harmonic components of the noise; (2) calculation of waveforms for weakly-dispersive nonlinear propagation; and (3) analysis of the nonlinear development of the amplitude of wave packets in the case of dispersive propagation.

• Corporate Authors:

  Virginia Polytechnic Institute and State University, Blacksburg

  Department of Agronomy
  Blacksburg, VA  United States  24061

  Office of the Secretary of Transportation

  Office of Noise Abatement, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Nayfeh, A H
  • Kaiser, J E
  • Sridhar, S
• Publication Date: 1977-3

Media Info

• Pagination: 44 p.

Subject/Index Terms

• TRT Terms: Air intakes; Ducts; Harmonics; Jet engines; Linings; Nonlinear systems; Sound transmission; Wave motion
• Subject Areas: Vehicles and Equipment;

Filing Info

• Accession Number: 00155405
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: DOT/TST-77-37
• Contract Numbers: DOT-OS-50047
• Files: NTIS, USDOT
• Created Date: Aug 4 2002 12:00AM