{"id":4545,"date":"2017-11-06T11:21:58","date_gmt":"2017-11-06T10:21:58","guid":{"rendered":"https:\/\/l2ep.univ-lille.fr\/?p=4545"},"modified":"2017-11-28T15:01:00","modified_gmt":"2017-11-28T14:01:00","slug":"these-bilquis-mohamodhosen-6-dec-2017","status":"publish","type":"post","link":"https:\/\/l2ep.univ-lille.fr\/en\/these-bilquis-mohamodhosen-6-dec-2017\/","title":{"rendered":"Th\u00e8se: Bilquis MOHAMODHOSEN, 6 D\u00e9c. 2017"},"content":{"rendered":"

Titre<\/strong> : Optimisation Topologique des Dispositifs Electromagn\u00e9tiques<\/span><\/strong><\/p>\n

Date<\/strong> : Mercredi 6 d\u00e9cembre 2017
\nHeure<\/strong> : 10h00
\nLieu<\/strong> : Centrale Lille, Grand Amphi<\/p>\n

\nR\u00e9sum\u00e9 :<\/strong>
\nL\u2019Optimisation Topologique (OT) est un sujet en plein essor qui suscite l\u2019int\u00e9r\u00eat de nombreux chercheurs depuis ces deux derni\u00e8res d\u00e9cennies dans le domaine de l\u2019\u00e9lectromagn\u00e9tisme. L\u2019OT repr\u00e9sente une m\u00e9thode tr\u00e8s attrayante et originale car elle permet de trouver des structures innovantes sans aucun a priori. Ce travail de th\u00e8se est orient\u00e9 vers l\u2019OT des dispositifs \u00e9lectromagn\u00e9tiques en approfondissant plusieurs aspects du sujet. Tout d\u2019abord, un outil d\u2019OT est d\u00e9velopp\u00e9 et test\u00e9, \u00e0 partir des outils existant au L2EP. En effet, l\u2019OT requiert un outil d\u2019\u00e9l\u00e9ments finis et un outil d\u2019optimisation devant \u00eatre coupl\u00e9s. Une m\u00e9thodologie originale d\u2019OT fond\u00e9e sur les principes de la M\u00e9thode de Densit\u00e9 est d\u00e9velopp\u00e9e et test\u00e9e. Un cas test acad\u00e9mique est utilis\u00e9 afin de tester et valider le couplage des outils et la m\u00e9thodologie. Une approche visant \u00e0 prendre en compte le comportement non-lin\u00e9aire des mat\u00e9riaux ferromagn\u00e9tiques avec nos outils OT est \u00e9galement mise en place. Ensuite, la m\u00e9thode est appliqu\u00e9e afin d\u2019optimiser un \u00e9lectroaimant en 3 dimensions, repr\u00e9sentant un cas test proche de la r\u00e9alit\u00e9. Ce cas test permet de comparer les r\u00e9sultats avec un comportement lin\u00e9aire et non-lin\u00e9aire des mat\u00e9riaux. Diverses topologies sont pr\u00e9sent\u00e9es, par rapport aux diff\u00e9rentes formulations du probl\u00e8me. Par la suite, la m\u00e9thodologie est appliqu\u00e9e \u00e0 un dispositif \u00e9lectromagn\u00e9tique plus complexe\u00a0: une G\u00e9n\u00e9ratrice Synchrone \u00e0 P\u00f4les Saillants. Cet exemple nous permet de voir comment la d\u00e9finition du probl\u00e8me d\u2019optimisation peut grandement affecter les r\u00e9sultats d\u2019OT. Quelques topologies sont pr\u00e9sent\u00e9es, et leur faisabilit\u00e9 est analys\u00e9e.
\nMots-clefs\u00a0:<\/strong> Optimisation Topologique, Electromagn\u00e9tisme, M\u00e9thode de Densit\u00e9, M\u00e9thode El\u00e9ments Finis, Facteur de Faisabilit\u00e9, Cas Test Cubique, Electroaimant, G\u00e9n\u00e9ratrice Synchrone \u00e0 P\u00f4les Saillants
\nAbstract :<\/strong>
\nTopology Optimisation (TO) is a fast growing topic that has been sparking the interest of many researchers for the past two decades in the electromagnetic community. Its attractiveness lies in the originality of finding innovative structures without any layout a priori. This thesis work is oriented towards the TO of electromagnetic devices by elaborating on various aspects of the subject. First of all, a tool for TO is developed and tested, based on the \u2018home-made\u2019 tools available at the L2EP. As TO requires a FE and an optimisation tool working together, a coupling is done using both. Furthermore, a TO methodology is developed and tested, based on the Density Method. An academic cubic test case is used to carry out all the tests, and validate the tools and methodology. An approach is also developed to consider the nonlinear behaviour of the ferromagnetic materials with our TO tools. Afterwards, the methodology is applied to a 3D electromagnet, which represents a more real test case. This test case also serves to compare the results with linear and nonlinear behaviour of the materials used. Various topologies are presented, for different problem formulations. Subsequently, the methodology is applied to a more complex electromagnetic device: a Salient Pole Synchronous Generator. This example allows us to see how the problem definition can largely affect TO results. Some topologies are presented and their viability is discussed.
\nKeywords\u00a0:<\/strong> Topology Optimisation, Electromagnetism, Density Method, Finite Element Method, Feasibility Factor, Cubic Test Case, Electromagnet, Salient Pole Synchronous Generator<\/p>\n","protected":false},"excerpt":{"rendered":"

Titre : Optimisation Topologique des Dispositifs Electromagn\u00e9tiques Date : Mercredi 6 d\u00e9cembre 2017 Heure : 10h00 Lieu : Centrale Lille, Grand Amphi R\u00e9sum\u00e9 : L\u2019Optimisation Topologique (OT) est un sujet en plein essor qui suscite l\u2019int\u00e9r\u00eat de nombreux chercheurs depuis ces deux derni\u00e8res d\u00e9cennies dans le domaine de l\u2019\u00e9lectromagn\u00e9tisme. L\u2019OT repr\u00e9sente une m\u00e9thode tr\u00e8s attrayante […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[34,3],"tags":[],"_links":{"self":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/4545"}],"collection":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/comments?post=4545"}],"version-history":[{"count":4,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/4545\/revisions"}],"predecessor-version":[{"id":4569,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/4545\/revisions\/4569"}],"wp:attachment":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/media?parent=4545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/categories?post=4545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/tags?post=4545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}