{"id":7895,"date":"2018-11-07T14:32:44","date_gmt":"2018-11-07T13:32:44","guid":{"rendered":"http:\/\/synthese.univ-annaba.dz\/?p=7895"},"modified":"2018-11-07T14:35:42","modified_gmt":"2018-11-07T13:35:42","slug":"analyse-aeroelastique-des-paliers-a-structure-a-feuilles-en-regime-stationnaire","status":"publish","type":"post","link":"https:\/\/synthese.univ-annaba.dz\/?p=7895","title":{"rendered":"Analyse aero\u00e9lastique des paliers \u00e0 structure \u00e0 feuilles en r\u00e9gime stationnaire"},"content":{"rendered":"
Num\u00e9ro de la revue<\/strong>: 37
\nAuteurs<\/strong>: Youcef Amine Masmoudi *1, 2<\/sup> & Ammar Haiahem1<\/sup><\/div>\n
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1<\/sup>Laboratoire de M\u00e9canique Industrielle, Universit\u00e9 Badji Mokhtar B.P. 12, Annaba, Alg\u00e9rie.2<\/sup>Research Center in Industrial Technologies, P.O. Box 64,Cheraga 16014,Algiers, Algeria.<\/p>\n

Soumis le\u00a0: 18 \/07\/2017\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 R\u00e9vis\u00e9 le\u00a0: 19 \/05\/2018\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Accept\u00e9 le\u00a0: 04 \/06\/2018<\/em><\/p>\n<\/div>\n

T\u00e9l\u00e9charger l’article\"p2\"<\/strong><\/a><\/p>\n

R\u00e9sum\u00e9<\/strong> :<\/p>\n

La turbomachine connaissait durant ces derni\u00e8res d\u00e9cennies un d\u00e9veloppement particulier dans le but d\u2019all\u00e9ger les \u00e9l\u00e9ments de machines tournants et de pr\u00e9server l\u2019environnement tout en am\u00e9liorant les performances de fonctionnement. Les \u00e9l\u00e9ments cl\u00e9s dans la turbomachine sont les paliers a\u00e9rodynamiques qui soutiennent les rotors tournants \u00e0 grandes vitesses. Dans ce papier, nous nous int\u00e9ressons \u00e0 l\u2019\u00e9tude aero\u00e9lastique d\u2019un palier circulaire \u00e0 structure \u00e0 feuilles (a\u00e9rodynamique) en r\u00e9gime permanant. La structure d\u00e9formable se constitue de feuilles ondul\u00e9es (bumps) fix\u00e9es sur une feuille sup\u00e9rieure rigide qui forme avec le rotor et l\u2019air\u00a0 un contact \u00e9lasto-a\u00e9rodynamique. Une mod\u00e9lisation num\u00e9rique a \u00e9t\u00e9 d\u00e9velopp\u00e9e bas\u00e9e sur l\u2019\u00e9quation de Reynolds et un mod\u00e8le exprimant les d\u00e9formations \u00e9lastiques des bumps en fonction de la pression a\u00e9rodynamique, la g\u00e9om\u00e9trie des bumps et ses propri\u00e9t\u00e9s m\u00e9caniques. La r\u00e9solution de ce probl\u00e8me qui est non-lin\u00e9aire se fait par discr\u00e9tisation diff\u00e9rences finies avec l\u2019utilisation de la m\u00e9thode de Newton-Raphson. Les r\u00e9sultats montrent la distribution de la pression et le champ de hauteur du film ainsi que d\u2019autres caract\u00e9ristiques de l\u2019interaction fluide-structure et du comportement a\u00e9rodynamique du palier dus aux conditions de fonctionnement donn\u00e9es.<\/p>\n

Mots clefs\u00a0:<\/em><\/strong> palier a\u00e9rodynamique, aero\u00e9lastique, structure \u00e0 feuilles, \u00e9paisseur du film, portance.<\/em><\/p>\n

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Num\u00e9ro de la revue: 37 Auteurs: Youcef Amine Masmoudi *1, 2 & Ammar Haiahem1 1Laboratoire de M\u00e9canique Industrielle, Universit\u00e9 Badji Mokhtar B.P. 12, Annaba, Alg\u00e9rie.2Research Center in Industrial Technologies, P.O. Box 64,Cheraga 16014,Algiers, Algeria. Soumis le\u00a0: 18 \/07\/2017\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 R\u00e9vis\u00e9 … Lire la suite »<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1289],"tags":[1312,1314,1311,1315,1313],"class_list":["post-7895","post","type-post","status-publish","format-standard","hentry","category-synthese-37","tag-aeroelastique","tag-epaisseur-du-film","tag-palier-aerodynamique","tag-portance","tag-structure-a-feuilles"],"_links":{"self":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/7895","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7895"}],"version-history":[{"count":3,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/7895\/revisions"}],"predecessor-version":[{"id":7899,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/7895\/revisions\/7899"}],"wp:attachment":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}