Determination of the group and phase velocities from time–frequency representation of Wigner–Ville
Identifieur interne : 001164 ( France/Analysis ); précédent : 001163; suivant : 001165Determination of the group and phase velocities from time–frequency representation of Wigner–Ville
Auteurs : R. Latif [Maroc] ; E. H. Aassif [Maroc] ; G. Maze [France] ; A. Moudden [Maroc] ; B. Faiz [Maroc]Source :
- NDT and E International [ 0963-8695 ] ; 1999.
English descriptors
- KwdEn :
Abstract
The experimental measurement of the group and phase velocities of some circumferential waves propagating around a thin elastic tube is a still complex operation. In this study, we show that the dispersion velocity can be determined from a time–frequency representation. We use the Wigner–Ville method by virtue of its interesting properties. On some time–frequency images, the symmetric (S0) and antisymmetric (A1) circumferential waves are identified. The group velocity dispersion estimated from these images is compared with that computed by the proper mode theory method. A good agreement is obtained. The phase velocity is also determined from the group velocity.
Url:
DOI: 10.1016/S0963-8695(99)00013-4
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000934
- to stream Istex, to step Curation: 000934
- to stream Istex, to step Checkpoint: 000B12
- to stream Main, to step Merge: 001B52
- to stream Main, to step Curation: 001B03
- to stream Main, to step Exploration: 001B03
- to stream France, to step Extraction: 001164
Links to Exploration step
ISTEX:F02F03CE6FE3ED7970037E2D41961DC8C32E5B04Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Determination of the group and phase velocities from time–frequency representation of Wigner–Ville</title><author><name sortKey="Latif, R" sort="Latif, R" uniqKey="Latif R" first="R." last="Latif">R. Latif</name></author><author><name sortKey="Aassif, E H" sort="Aassif, E H" uniqKey="Aassif E" first="E. H." last="Aassif">E. H. Aassif</name></author><author><name sortKey="Maze, G" sort="Maze, G" uniqKey="Maze G" first="G." last="Maze">G. Maze</name></author><author><name sortKey="Moudden, A" sort="Moudden, A" uniqKey="Moudden A" first="A." last="Moudden">A. Moudden</name></author><author><name sortKey="Faiz, B" sort="Faiz, B" uniqKey="Faiz B" first="B." last="Faiz">B. Faiz</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:F02F03CE6FE3ED7970037E2D41961DC8C32E5B04</idno><date when="1999" year="1999">1999</date><idno type="doi">10.1016/S0963-8695(99)00013-4</idno><idno type="url">https://api.istex.fr/document/F02F03CE6FE3ED7970037E2D41961DC8C32E5B04/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000934</idno><idno type="wicri:Area/Istex/Curation">000934</idno><idno type="wicri:Area/Istex/Checkpoint">000B12</idno><idno type="wicri:doubleKey">0963-8695:1999:Latif R:determination:of:the</idno><idno type="wicri:Area/Main/Merge">001B52</idno><idno type="wicri:Area/Main/Curation">001B03</idno><idno type="wicri:Area/Main/Exploration">001B03</idno><idno type="wicri:Area/France/Extraction">001164</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Determination of the group and phase velocities from time–frequency representation of Wigner–Ville</title><author><name sortKey="Latif, R" sort="Latif, R" uniqKey="Latif R" first="R." last="Latif">R. Latif</name><affiliation wicri:level="1"><country xml:lang="fr">Maroc</country><wicri:regionArea>Laboratoire d'Instrumentation et de Mesures, BP 28/S, Faculté des Sciences, Université Ibn Zohr, 80000 Agadir</wicri:regionArea><wicri:noRegion>80000 Agadir</wicri:noRegion></affiliation><affiliation></affiliation></author><author><name sortKey="Aassif, E H" sort="Aassif, E H" uniqKey="Aassif E" first="E. H." last="Aassif">E. H. Aassif</name><affiliation wicri:level="1"><country xml:lang="fr">Maroc</country><wicri:regionArea>Laboratoire d'Instrumentation et de Mesures, BP 28/S, Faculté des Sciences, Université Ibn Zohr, 80000 Agadir</wicri:regionArea><wicri:noRegion>80000 Agadir</wicri:noRegion></affiliation></author><author><name sortKey="Maze, G" sort="Maze, G" uniqKey="Maze G" first="G." last="Maze">G. Maze</name><affiliation wicri:level="4"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire d'Acoustique Ultrasonore et d'Electronique, URA CNRS 1373, Université du Havre, 76610 le Havre</wicri:regionArea><placeName><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region><settlement type="city">le Havre</settlement></placeName><orgName type="university">Université du Havre</orgName></affiliation></author><author><name sortKey="Moudden, A" sort="Moudden, A" uniqKey="Moudden A" first="A." last="Moudden">A. Moudden</name><affiliation wicri:level="1"><country xml:lang="fr">Maroc</country><wicri:regionArea>Laboratoire d'Instrumentation et de Mesures, BP 28/S, Faculté des Sciences, Université Ibn Zohr, 80000 Agadir</wicri:regionArea><wicri:noRegion>80000 Agadir</wicri:noRegion></affiliation></author><author><name sortKey="Faiz, B" sort="Faiz, B" uniqKey="Faiz B" first="B." last="Faiz">B. Faiz</name><affiliation wicri:level="1"><country xml:lang="fr">Maroc</country><wicri:regionArea>Laboratoire d'Instrumentation et de Mesures, BP 28/S, Faculté des Sciences, Université Ibn Zohr, 80000 Agadir</wicri:regionArea><wicri:noRegion>80000 Agadir</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">NDT and E International</title><title level="j" type="abbrev">JNDT</title><idno type="ISSN">0963-8695</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1999">1999</date><biblScope unit="volume">32</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="415">415</biblScope><biblScope unit="page" to="422">422</biblScope></imprint><idno type="ISSN">0963-8695</idno></series><idno type="istex">F02F03CE6FE3ED7970037E2D41961DC8C32E5B04</idno><idno type="DOI">10.1016/S0963-8695(99)00013-4</idno><idno type="PII">S0963-8695(99)00013-4</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0963-8695</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acoustic response</term><term>Circumferential waves</term><term>Group velocity</term><term>Phase velocity</term><term>Scattering waves</term><term>Submerged elastic shell</term><term>Time–frequency</term><term>Wigner–Ville</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The experimental measurement of the group and phase velocities of some circumferential waves propagating around a thin elastic tube is a still complex operation. In this study, we show that the dispersion velocity can be determined from a time–frequency representation. We use the Wigner–Ville method by virtue of its interesting properties. On some time–frequency images, the symmetric (S0) and antisymmetric (A1) circumferential waves are identified. The group velocity dispersion estimated from these images is compared with that computed by the proper mode theory method. A good agreement is obtained. The phase velocity is also determined from the group velocity.</div></front></TEI><affiliations><list><country><li>France</li><li>Maroc</li></country><region><li>Haute-Normandie</li><li>Région Normandie</li></region><settlement><li>le Havre</li></settlement><orgName><li>Université du Havre</li></orgName></list><tree><country name="Maroc"><noRegion><name sortKey="Latif, R" sort="Latif, R" uniqKey="Latif R" first="R." last="Latif">R. Latif</name></noRegion><name sortKey="Aassif, E H" sort="Aassif, E H" uniqKey="Aassif E" first="E. H." last="Aassif">E. H. Aassif</name><name sortKey="Faiz, B" sort="Faiz, B" uniqKey="Faiz B" first="B." last="Faiz">B. Faiz</name><name sortKey="Moudden, A" sort="Moudden, A" uniqKey="Moudden A" first="A." last="Moudden">A. Moudden</name></country><country name="France"><region name="Région Normandie"><name sortKey="Maze, G" sort="Maze, G" uniqKey="Maze G" first="G." last="Maze">G. Maze</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/France/explor/LeHavreV1/Data/France/Analysis
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001164 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/France/Analysis/biblio.hfd -nk 001164 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/France
|area= LeHavreV1
|flux= France
|étape= Analysis
|type= RBID
|clé= ISTEX:F02F03CE6FE3ED7970037E2D41961DC8C32E5B04
|texte= Determination of the group and phase velocities from time–frequency representation of Wigner–Ville
}}
| This area was generated with Dilib version V0.6.25. |  |