✦ LIBER ✦
SOUND TRANSMISSION IN MUFFLERS WITH MULTIPLE PERFORATED CO-AXIAL PIPES
✍ Scribed by E. DOKUMACI
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 219 KB
- Volume
- 247
- Category
- Article
- ISSN
- 0022-460X
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✦ Synopsis
Although there exists ample literature on the analysis of mu%ers with parallel multiple perforated pipes, there is a surprising void of papers on acoustical modelling of mu%ers employing multiple co-axial pipes. In the present paper, the distributed parameter method is extended for the analysis of mu%ers 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 #ow.