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Design optimization of electrical power contact using finite element method / Amine Beloufa in Journal of heat transfer, Vol. 134 N° 1 (Janvier 2012) 

Public ISBD [article]  in Journal of heat transfer > Vol. 134 N° 1 (Janvier 2012) . - 15 p. Titre : Design optimization of electrical power contact using finite element method Type de document : texte imprimé Auteurs : Amine Beloufa, Auteur Année de publication : 2012 Article en page(s) : 15 p. Note générale : Heat transfer Langues : Anglais (eng) Mots-clés : Automotive  components  Automotive  electronics  Contact  resistance  Design  engineering  Electric  connectors  Electrical  contacts  Finite  element  analysis  Loading  Mechanical  strength  Optimisation  Stress  analysis Index. décimale : 536 Chaleur. Thermodynamique Résumé : Automotive connectors in modern car generations are submitted to high current; this can cause many problems and requires the minimization of their electrical contact resistances. The new major contribution of this work is the optimization by finite element method of contact resistance, contact temperature, design, and mechanical stress of sphere/plane contact samples. These contact samples were made with recent high-copper alloys and were subjected to indentation loading. Experimental tests were carried out in order to validate the developed numerical model and to select the material which presents a low contact temperature and contact resistance. Another model with multipoint contacts was developed in order to minimize electrical contact resistance and contact temperature. Shape optimization results indicate that the volume of contact samples was reduced by 12%. The results show also for the model with multipoint contacts that the contact resistance was reduced by 41%, contact temperature by 22% and maximum Von Mises stress by 49%. These several gains are more interesting for the connector designers. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000001 [...] [article] Design optimization of electrical power contact using finite element method [texte imprimé] / Amine Beloufa, Auteur . - 2012 . - 15 p. Heat transfer Langues : Anglais (eng) in Journal of heat transfer > Vol. 134 N° 1 (Janvier 2012) . - 15 p. Mots-clés : Automotive  components  Automotive  electronics  Contact  resistance  Design  engineering  Electric  connectors  Electrical  contacts  Finite  element  analysis  Loading  Mechanical  strength  Optimisation  Stress  analysis Index. décimale : 536 Chaleur. Thermodynamique Résumé : Automotive connectors in modern car generations are submitted to high current; this can cause many problems and requires the minimization of their electrical contact resistances. The new major contribution of this work is the optimization by finite element method of contact resistance, contact temperature, design, and mechanical stress of sphere/plane contact samples. These contact samples were made with recent high-copper alloys and were subjected to indentation loading. Experimental tests were carried out in order to validate the developed numerical model and to select the material which presents a low contact temperature and contact resistance. Another model with multipoint contacts was developed in order to minimize electrical contact resistance and contact temperature. Shape optimization results indicate that the volume of contact samples was reduced by 12%. The results show also for the model with multipoint contacts that the contact resistance was reduced by 41%, contact temperature by 22% and maximum Von Mises stress by 49%. These several gains are more interesting for the connector designers. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000001 [...]