Acoustical analysis, testing, and design of flow‐reversing muffler chambers
作者:
Cheng‐I James Young,
Malcolm J. Crocker,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1976)
卷期:
Volume 60,
issue 5
页码: 1111-1118
ISSN:0001-4966
年代: 1976
DOI:10.1121/1.381211
出版商: Acoustical Society of America
关键词: 5030;5040
数据来源: AIP
摘要:
The transmission loss characteristics of flow‐reversing muffler chambers were predicted by a numerical approach based on the finite element method. The theoretical model developed is described in this paper; its validity is established experimentally with a number of different chambers. The standing wave method was used to measure transmission loss and measurements were conducted with and without steady air flow. Depending on the inlet and outlet configurations, the flow‐reversing chambers have two completely different transmission loss characteristics, one is similar to that for two sample expansion chambers in series and the other is similar to that for a side‐branch resonator. Using the theoretical model developed, transmission loss curves were calculated for a large number of different flow‐reversing chamber dimensions.Subject Classification: [43]50.30, [43]50.40.
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