DC Field | Value | Language |
---|---|---|
dc.contributor.author | 최성훈 | - |
dc.contributor.author | 김양한 | - |
dc.date.accessioned | 2013-03-16T23:25:27Z | - |
dc.date.available | 2013-03-16T23:25:27Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2001 | - |
dc.identifier.citation | 한국소음진동공학회 2001 춘계학술대회, v., no., pp.420 - 425 | - |
dc.identifier.uri | http://hdl.handle.net/10203/137249 | - |
dc.description.abstract | Theoretical analysis of noise reduction by a membrane-duct system is presented. When acorn waves propagate in the membrane-duct, the membrane is also excited and its motion is coup with interior medium. It has been shown that propagating waves with supersonic wave speed exist beyond a certain critical frequency that is determined from the mass ratio of the me and the fluid. Also found are subsonic waves which couple strongly wi th the membrane a provide a powerful mechanism of energy dissipation. Existence of an exterior medium alter dispersion characteristics. It provides additional mass loading and reduces the subsort speed further. The effect of mean flow speed on dispersion characteristics is also consider results show that the membrane-duct system can be applied to diminish and absorb 1 frequency noise in duct instead of passive muffler, such as a simple expansion chamber absorption material. | - |
dc.language | KOR | - |
dc.publisher | 한국소음진동공학회 | - |
dc.title | 박막형 소음기의 주파수 특성 | - |
dc.title.alternative | Frequency Characteristics of a Membrane Duct | - |
dc.type | Conference | - |
dc.type.rims | CONF | - |
dc.citation.beginningpage | 420 | - |
dc.citation.endingpage | 425 | - |
dc.citation.publicationname | 한국소음진동공학회 2001 춘계학술대회 | - |
dc.identifier.conferencecountry | South Korea | - |
dc.identifier.conferencecountry | South Korea | - |
dc.contributor.localauthor | 김양한 | - |
dc.contributor.nonIdAuthor | 최성훈 | - |
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