Nonlinear Sound Generation of Subharmonic and Ultraharmonics in Water-Saturated Sandy Sediments
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김병남 | - |
dc.contributor.author | 이강일 | - |
dc.contributor.author | 윤석왕 | - |
dc.contributor.author | 최복경 | - |
dc.contributor.author | 심태보 | - |
dc.date.accessioned | 2020-07-17T11:31:06Z | - |
dc.date.available | 2020-07-17T11:31:06Z | - |
dc.date.created | 2020-02-11 | - |
dc.date.issued | 2004-04-07 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/31963 | - |
dc.description.abstract | Nonlinear acoustic characteristics of sediments are very important to understand nonlinear phenomena of marine gassy sediments. Acoustic characteristics of thesubharmonic and the ultraharmonic sound waves generated in water-saturated sandy sediments were investigated. When a harmonic sound wave with highamplitude was incident on the water-saturated sandy sediments, the subharmonic and the ultraharmonic components of incident wave were generated due to the nonlinearity of water-saturated sandy sediments. The pressure levels of these nonlinear sound waves were 15 dB to 30 dB higher than the background noise level at the fundamental frequency with maximum incident acoustic pressure. The subharmonic and the ultraharmonic pressure levels also decreased for the increase of the grain size of sandy sediments. The fundamental and the harmonic frequency components of the incident wave affected on the subharmonic and the ultraharmonic pressure levels. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | The International Commission for Acoustics | - |
dc.relation.isPartOf | The 18th International Congress on Acoustics | - |
dc.title | Nonlinear Sound Generation of Subharmonic and Ultraharmonics in Water-Saturated Sandy Sediments | - |
dc.type | Conference | - |
dc.citation.conferencePlace | JA | - |
dc.citation.endPage | 2522 | - |
dc.citation.startPage | 2519 | - |
dc.citation.title | The 18th International Congress on Acoustics | - |
dc.contributor.alternativeName | 최복경 | - |
dc.identifier.bibliographicCitation | The 18th International Congress on Acoustics, pp.2519 - 2522 | - |
dc.description.journalClass | 1 | - |