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Load performance of large-scale rolling bearings with supporting structure in wind turbines / Guanci Chen in Transactions of the ASME . Journal of tribology, Vol. 134 N° 04 (Octobre 2012) 

Public ISBD [article]  in Transactions of the ASME . Journal of tribology > Vol. 134 N° 04 (Octobre 2012) . - 09 p. Titre : Load performance of large-scale rolling bearings with supporting structure in wind turbines Type de document : texte imprimé Auteurs : Guanci Chen, Auteur ; Jianmin Wen, Auteur Année de publication : 2012 Article en page(s) : 09 p. Note générale : tribology Langues : Anglais (eng) Mots-clés : large-scale  rolling  bearing;  load  performance;  flexible  support;  traction  spring  elements;  wind  turbine;  finite  element  method Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The stiffness of rolling bearings and their supporting structure in wind turbines is very low because of their large dimensions. Accurate predictions of the deformations of bearing elements and their flexible supports are difficult. In this paper, the finite element method (FEM) is employed to determine the mechanical behaviors of the large-scale bearings. Traction springs are used to model the contact between raceways and rolling elements. A pitch bearing supports the whole hub, the partial hub and the rigid outer ring under loads is studied. Results show that a comprehensive model representing the surrounding structure is necessary for an accurate assessment of the actual loading conditions of large-scale WTG pitch bearings. The load is shared well between the two bearing rows by appropriately decreasing the stiffness of the plane rib. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE9000134000004 [...] [article] Load performance of large-scale rolling bearings with supporting structure in wind turbines [texte imprimé] / Guanci Chen, Auteur ; Jianmin Wen, Auteur . - 2012 . - 09 p. tribology Langues : Anglais (eng) in Transactions of the ASME . Journal of tribology > Vol. 134 N° 04 (Octobre 2012) . - 09 p. Mots-clés : large-scale  rolling  bearing;  load  performance;  flexible  support;  traction  spring  elements;  wind  turbine;  finite  element  method Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The stiffness of rolling bearings and their supporting structure in wind turbines is very low because of their large dimensions. Accurate predictions of the deformations of bearing elements and their flexible supports are difficult. In this paper, the finite element method (FEM) is employed to determine the mechanical behaviors of the large-scale bearings. Traction springs are used to model the contact between raceways and rolling elements. A pitch bearing supports the whole hub, the partial hub and the rigid outer ring under loads is studied. Results show that a comprehensive model representing the surrounding structure is necessary for an accurate assessment of the actual loading conditions of large-scale WTG pitch bearings. The load is shared well between the two bearing rows by appropriately decreasing the stiffness of the plane rib. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE9000134000004 [...]