Sound transmission in mufflers with multiple perforated co-axial pipes

Dokumaci E.

JOURNAL OF SOUND AND VIBRATION, vol.247, no.3, pp.379-387, 2001 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 247 Issue: 3
  • Publication Date: 2001
  • Doi Number: 10.1006/jsvi.2000.3381
  • Journal Name: JOURNAL OF SOUND AND VIBRATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.379-387
  • Dokuz Eylül University Affiliated: No

Abstract

Although there exists ample literature on the analysis of mufflers with parallel multiple perforated pipes, there is a surprising void of papers on acoustical modelling of mufflers employing multiple co-axial pipes. In the present paper, the distributed parameter method is extended for the analysis of mufflers employing multiple co-axial pipes. The theory is presented in a generality encompassing any number of co-axial perforated pipes. Implementation of the theory is shown on a resonator with two co-axial perforated pipes. Experimental validation of the predictions is provided for the case of zero mean flow. (C) 2001 Academic Press.