303 Paper Details
Sound Transmission in an Expansion Chamber with Lined Walls and Extended Inlet/Outlet
Ahmet Demir
Abstract
The transmission of sound in an expansion chamber with extended inlet/outlet is investigated in the case the walls of the expansion chamber and the extended inlet/outlet are lined with different acoustically absorbent materials. By using the series expansion in extended inlet/outlet regions and using Fourier transform technique elsewhere we obtain a Wiener-Hopf equation whose solution involve a set of infinitely many unknown expansion coefficients satisfying a system of linear algebraic equations. The solution of the algebraic system is obtained numerically and then the variation of transmission coefficient for different values of problem parameters are displayed graphically.
Published in:
5th International Symposium on Innovative Technologies in Engineering and Science 29-30 September 2017 (ISITES2017 Baku - Azerbaijan)