Decision support tools for the detection and analysis of surface damage in immersed structures
Identifieur interne : 000107 ( Main/Exploration ); précédent : 000106; suivant : 000108Decision support tools for the detection and analysis of surface damage in immersed structures
Auteurs : Yaya Yannick Sidibé [France]Source :
Descripteurs français
English descriptors
Abstract
This study concerns the damages detection and diagnosis for immersed structure. The structures are metallic plates. The proposed method focuses on the analysis of ultrasonic acoustic measurements obtained by submarine echography. It combines signal processing tools and Gaussian neural networks for classification purpose. Methods with and without reference models are proposed. The usual detection technics with contact are not applicable for the considered systems like stream turbines. This research consists to use a single and a single transducer under different incidence angles opposed to others technics using numerous sensors and their accurate location. The present research use Lamb wave according to their sensibility to the structural damages. The different stages are the following : - 1. Experimental setup for Lamb wave generation and acquisition. - 2. Study of the Lamb wave processing on immersed structures, in particular in metallic plate immersed in water. - 3 .Signal characterization for different types of damages. - 4. Estimation of the angle and lift-off distance.
Url:
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Hal, to step Corpus: 000088
- to stream Hal, to step Curation: 000088
- to stream Hal, to step Checkpoint: 000042
- to stream Main, to step Merge: 000107
- to stream Main, to step Curation: 000107
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Decision support tools for the detection and analysis of surface damage in immersed structures</title><title xml:lang="fr">Aide à la décision pour la détection et l’analyse des défauts de surface dans les structures immergées</title><author><name sortKey="Sidibe, Yaya Yannick" sort="Sidibe, Yaya Yannick" uniqKey="Sidibe Y" first="Yaya Yannick" last="Sidibé">Yaya Yannick Sidibé</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-422261" status="INCOMING"><orgName>Laboratoire Ondes et Milieux Complexes</orgName><orgName type="acronym">LOMC</orgName><desc><address><addrLine>53 rue de prony, 76600 Le Havre</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-lehavre.fr/recherche/lomc/</ref></desc><listRelation><relation active="#struct-422259" type="direct"></relation><relation active="#struct-422260" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-422259" type="direct"><org type="institution" xml:id="struct-422259" status="INCOMING"><orgName>CNRS : UMR6294</orgName></org></tutelle><tutelle active="#struct-422260" type="direct"><org type="institution" xml:id="struct-422260" status="INCOMING"><orgName>Université du Havre : EA4314</orgName></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">HAL</idno><idno type="RBID">Hal:tel-01256830</idno><idno type="halId">tel-01256830</idno><idno type="halUri">https://tel.archives-ouvertes.fr/tel-01256830</idno><idno type="url">https://tel.archives-ouvertes.fr/tel-01256830</idno><date when="2015-10-05">2015-10-05</date><idno type="wicri:Area/Hal/Corpus">000088</idno><idno type="wicri:Area/Hal/Curation">000088</idno><idno type="wicri:Area/Hal/Checkpoint">000042</idno><idno type="wicri:Area/Main/Merge">000107</idno><idno type="wicri:Area/Main/Curation">000107</idno><idno type="wicri:Area/Main/Exploration">000107</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Decision support tools for the detection and analysis of surface damage in immersed structures</title><title xml:lang="fr">Aide à la décision pour la détection et l’analyse des défauts de surface dans les structures immergées</title><author><name sortKey="Sidibe, Yaya Yannick" sort="Sidibe, Yaya Yannick" uniqKey="Sidibe Y" first="Yaya Yannick" last="Sidibé">Yaya Yannick Sidibé</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-422261" status="INCOMING"><orgName>Laboratoire Ondes et Milieux Complexes</orgName><orgName type="acronym">LOMC</orgName><desc><address><addrLine>53 rue de prony, 76600 Le Havre</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-lehavre.fr/recherche/lomc/</ref></desc><listRelation><relation active="#struct-422259" type="direct"></relation><relation active="#struct-422260" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-422259" type="direct"><org type="institution" xml:id="struct-422259" status="INCOMING"><orgName>CNRS : UMR6294</orgName></org></tutelle><tutelle active="#struct-422260" type="direct"><org type="institution" xml:id="struct-422260" status="INCOMING"><orgName>Université du Havre : EA4314</orgName></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author></analytic></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>Detection and diagnosis for immersed structure</term><term>Submarine echography</term></keywords><keywords scheme="mix" xml:lang="fr"><term>Diagnostic de défaut</term><term>Localisation de défaut</term><term>Échographie ultrasonore</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This study concerns the damages detection and diagnosis for immersed structure. The structures are metallic plates. The proposed method focuses on the analysis of ultrasonic acoustic measurements obtained by submarine echography. It combines signal processing tools and Gaussian neural networks for classification purpose. Methods with and without reference models are proposed. The usual detection technics with contact are not applicable for the considered systems like stream turbines. This research consists to use a single and a single transducer under different incidence angles opposed to others technics using numerous sensors and their accurate location. The present research use Lamb wave according to their sensibility to the structural damages. The different stages are the following : - 1. Experimental setup for Lamb wave generation and acquisition. - 2. Study of the Lamb wave processing on immersed structures, in particular in metallic plate immersed in water. - 3 .Signal characterization for different types of damages. - 4. Estimation of the angle and lift-off distance.</div></front></TEI><affiliations><list><country><li>France</li></country></list><tree><country name="France"><noRegion><name sortKey="Sidibe, Yaya Yannick" sort="Sidibe, Yaya Yannick" uniqKey="Sidibe Y" first="Yaya Yannick" last="Sidibé">Yaya Yannick Sidibé</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/France/explor/LeHavreV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000107 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000107 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/France
|area= LeHavreV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= Hal:tel-01256830
|texte= Decision support tools for the detection and analysis of surface damage in immersed structures
}}
| This area was generated with Dilib version V0.6.25. |  |