Diffusion acoustique d'un moyeu et d'une pale
Identifieur interne : 000907 ( Main/Exploration ); précédent : 000906; suivant : 000908Diffusion acoustique d'un moyeu et d'une pale
Auteurs : Nicolas Cité [France] ; Farid Chati [France] ; Fernand Léon [France] ; Gerard Maze [France] ; Hendrik Naar [Estonie] ; Aleksander Klauson [Estonie]Source :
Descripteurs français
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Abstract
Dans le cadre de l'étude acoustique des défauts de pales d'une hélice, nous avons mis en œuvre différents procédés expérimentaux à la fois dans l'air et dans l'eau. En effet, grâce à ces procédés nous avons étudié l'interaction entre les différentes structures reliés entre elles par une soudure et plus particulièrement l'interaction entre un moyeu cylindrique quasi-plein (b/a=0,2) et une pale de forme rectangulaire. Cette étude nous a conduits à étudier, par diffusion acoustique, le comportement résonnant des différentes structures seules puis le moyeu associé à la pale. Ainsi, nous avons pu voir l'impact d'ajout de structure sur les spectres, expliquer de manière expérimentale quels types d'ondes se propageaient et comment elles se propageaient au sein des structures.
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xml:lang="fr">Dans le cadre de l'étude acoustique des défauts de pales d'une hélice, nous avons mis en œuvre différents procédés expérimentaux à la fois dans l'air et dans l'eau. En effet, grâce à ces procédés nous avons étudié l'interaction entre les différentes structures reliés entre elles par une soudure et plus particulièrement l'interaction entre un moyeu cylindrique quasi-plein (b/a=0,2) et une pale de forme rectangulaire. Cette étude nous a conduits à étudier, par diffusion acoustique, le comportement résonnant des différentes structures seules puis le moyeu associé à la pale. Ainsi, nous avons pu voir l'impact d'ajout de structure sur les spectres, expliquer de manière expérimentale quels types d'ondes se propageaient et comment elles se propageaient au sein des structures.</div></front></TEI><affiliations><list><country><li>Estonie</li><li>France</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="France"><region name="Région Normandie"><name sortKey="Cite, Nicolas" sort="Cite, Nicolas" uniqKey="Cite N" first="Nicolas" last="Cité">Nicolas Cité</name></region><name sortKey="Chati, Farid" sort="Chati, Farid" uniqKey="Chati F" first="Farid" last="Chati">Farid Chati</name><name sortKey="Leon, Fernand" sort="Leon, Fernand" uniqKey="Leon F" first="Fernand" last="Léon">Fernand Léon</name><name sortKey="Maze, Gerard" sort="Maze, Gerard" uniqKey="Maze G" first="Gerard" last="Maze">Gerard Maze</name></country><country name="Estonie"><noRegion><name sortKey="Naar, Hendrik" sort="Naar, Hendrik" uniqKey="Naar H" first="Hendrik" last="Naar">Hendrik Naar</name></noRegion><name sortKey="Klauson, Aleksander" sort="Klauson, Aleksander" uniqKey="Klauson A" first="Aleksander" last="Klauson">Aleksander Klauson</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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