Application of orthogonality-relation for the separation of Lamb modes at a plate edge: numerical and experimental predictions.
Identifieur interne : 000103 ( PubMed/Curation ); précédent : 000102; suivant : 000104Application of orthogonality-relation for the separation of Lamb modes at a plate edge: numerical and experimental predictions.
Auteurs : M. Ratassepp [Estonie] ; A. Klauson [Estonie] ; F. Chati [France] ; F. Léon [France] ; D. Décultot [France] ; G. Maze [France] ; M. Fritzsche [Allemagne]Source :
- Ultrasonics [ 1874-9968 ] ; 2015.
Abstract
In this study the orthogonality relation-based method for post-processing finite element (FE) predictions and experimental measurements is applied in order to separate Lamb modes at a plate edge at normal incidence. The scattered wave field from the free edge is assumed to be a superposition of all the eigenmodes of an infinite plate. The eigenmode amplitudes of the reflected wave field are determined by implementing the orthogonality-based method on the measured plate edge displacements. Overlapping wavepackets of Lamb modes at a plate edge are simulated by using the FE model and the experiment in the case of an incident S0 mode in a plate with a notch. In the experiment a 3D Scanning Laser Doppler Vibrometer (3D SLDV) (Johansmann and Sauer, 2005) is used to measure 3 dimensional vibrations and thus the edge two-dimensional displacement components simultaneously. It is demonstrated that it is possible to extract signals of various propagating and non-propagating modes in time-domain. The influences of the errors in practical measurements on the extraction procedure have also been studied.
DOI: 10.1016/j.ultras.2014.10.022
PubMed: 25465106
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Ratassepp</name><affiliation wicri:level="1"><nlm:affiliation>Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia. Electronic address: madis.ratassepp@ttu.ee.</nlm:affiliation><country xml:lang="fr">Estonie</country><wicri:regionArea>Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086</wicri:regionArea></affiliation></author><author><name sortKey="Klauson, A" sort="Klauson, A" uniqKey="Klauson A" first="A" last="Klauson">A. Klauson</name><affiliation wicri:level="1"><nlm:affiliation>Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia.</nlm:affiliation><country xml:lang="fr">Estonie</country><wicri:regionArea>Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086</wicri:regionArea></affiliation></author><author><name sortKey="Chati, F" sort="Chati, F" uniqKey="Chati F" first="F" last="Chati">F. Chati</name><affiliation wicri:level="1"><nlm:affiliation>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre</wicri:regionArea></affiliation></author><author><name sortKey="Leon, F" sort="Leon, F" uniqKey="Leon F" first="F" last="Léon">F. Léon</name><affiliation wicri:level="1"><nlm:affiliation>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre</wicri:regionArea></affiliation></author><author><name sortKey="Decultot, D" sort="Decultot, D" uniqKey="Decultot D" first="D" last="Décultot">D. Décultot</name><affiliation wicri:level="1"><nlm:affiliation>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre</wicri:regionArea></affiliation></author><author><name sortKey="Maze, G" sort="Maze, G" uniqKey="Maze G" first="G" last="Maze">G. Maze</name><affiliation wicri:level="1"><nlm:affiliation>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre</wicri:regionArea></affiliation></author><author><name sortKey="Fritzsche, M" sort="Fritzsche, M" uniqKey="Fritzsche M" first="M" last="Fritzsche">M. Fritzsche</name><affiliation wicri:level="1"><nlm:affiliation>Polytec GmbH, Sales International, Waldbronn, Germany.</nlm:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Polytec GmbH, Sales International, Waldbronn</wicri:regionArea></affiliation></author></analytic><series><title level="j">Ultrasonics</title><idno type="eISSN">1874-9968</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this study the orthogonality relation-based method for post-processing finite element (FE) predictions and experimental measurements is applied in order to separate Lamb modes at a plate edge at normal incidence. The scattered wave field from the free edge is assumed to be a superposition of all the eigenmodes of an infinite plate. The eigenmode amplitudes of the reflected wave field are determined by implementing the orthogonality-based method on the measured plate edge displacements. Overlapping wavepackets of Lamb modes at a plate edge are simulated by using the FE model and the experiment in the case of an incident S0 mode in a plate with a notch. In the experiment a 3D Scanning Laser Doppler Vibrometer (3D SLDV) (Johansmann and Sauer, 2005) is used to measure 3 dimensional vibrations and thus the edge two-dimensional displacement components simultaneously. It is demonstrated that it is possible to extract signals of various propagating and non-propagating modes in time-domain. The influences of the errors in practical measurements on the extraction procedure have also been studied.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">25465106</PMID><DateCreated><Year>2015</Year><Month>1</Month><Day>7</Day></DateCreated><DateCompleted><Year>2015</Year><Month>03</Month><Day>21</Day></DateCompleted><DateRevised><Year>2015</Year><Month>1</Month><Day>7</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1874-9968</ISSN><JournalIssue CitedMedium="Internet"><Volume>57</Volume><PubDate><Year>2015</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Ultrasonics</Title><ISOAbbreviation>Ultrasonics</ISOAbbreviation></Journal><ArticleTitle>Application of orthogonality-relation for the separation of Lamb modes at a plate edge: numerical and experimental predictions.</ArticleTitle><Pagination><MedlinePgn>90-5</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.ultras.2014.10.022</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0041-624X(14)00307-2</ELocationID><Abstract><AbstractText>In this study the orthogonality relation-based method for post-processing finite element (FE) predictions and experimental measurements is applied in order to separate Lamb modes at a plate edge at normal incidence. The scattered wave field from the free edge is assumed to be a superposition of all the eigenmodes of an infinite plate. The eigenmode amplitudes of the reflected wave field are determined by implementing the orthogonality-based method on the measured plate edge displacements. Overlapping wavepackets of Lamb modes at a plate edge are simulated by using the FE model and the experiment in the case of an incident S0 mode in a plate with a notch. In the experiment a 3D Scanning Laser Doppler Vibrometer (3D SLDV) (Johansmann and Sauer, 2005) is used to measure 3 dimensional vibrations and thus the edge two-dimensional displacement components simultaneously. It is demonstrated that it is possible to extract signals of various propagating and non-propagating modes in time-domain. The influences of the errors in practical measurements on the extraction procedure have also been studied.</AbstractText><CopyrightInformation>Copyright © 2014 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ratassepp</LastName><ForeName>M</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia. Electronic address: madis.ratassepp@ttu.ee.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Klauson</LastName><ForeName>A</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Department of Mechanics, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Chati</LastName><ForeName>F</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Léon</LastName><ForeName>F</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Décultot</LastName><ForeName>D</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Maze</LastName><ForeName>G</ForeName><Initials>G</Initials><AffiliationInfo><Affiliation>Laboratoire Ondes et Milieux Complexes UMR CNRS 6294, Université Le Havre, 75 rue Bellot CS 50540, Le Havre, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fritzsche</LastName><ForeName>M</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Polytec GmbH, Sales International, Waldbronn, Germany.</Affiliation></AffiliationInfo></Author></AuthorList><Language>ENG</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>Nov</Month><Day>05</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Ultrasonics</MedlineTA><NlmUniqueID>0050452</NlmUniqueID><ISSNLinking>0041-624X</ISSNLinking></MedlineJournalInfo><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">3D Scanning Laser Doppler Vibrometer</Keyword><Keyword MajorTopicYN="N">Lamb modes</Keyword><Keyword MajorTopicYN="N">Mode separation</Keyword><Keyword MajorTopicYN="N">Orthogonality</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2014</Year><Month>3</Month><Day>28</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2014</Year><Month>8</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2014</Year><Month>10</Month><Day>25</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>12</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>12</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>12</Month><Day>4</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">25465106</ArticleId><ArticleId IdType="pii">S0041-624X(14)00307-2</ArticleId><ArticleId IdType="doi">10.1016/j.ultras.2014.10.022</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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