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Dynamics of a Jeffcott rotor with rigid blades rubbing against an outer ring
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0003-0318-6157
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0001-6016-6342
2012 (engelsk)Inngår i: Chaotic Modeling and Simulation (CMSIM), ISSN 2241-0503, E-ISSN 2241-0503, s. 643-650Artikkel i tidsskrift (Annet vitenskapelig) Published
Abstract [en]

The non-linear behaviour of rub-impact systems have been studied recentlyby approximating rotor-stator systems as rubbing cylinders. In reality, therotor shape is more complex, resulting in richer dynamics over smaller parameter ranges. In this paper, a bladed turbine is modelled using a Jeffcott rotor with three rigid beams attached to the mass center. The contact forces are described by a radial restoring force induced by the massless outer ring, and a tangential Coulomb frictional force. The results are presented in bifurcation diagrams and compared with a previous model described by three flexible beams entering in contact with a fixed ring assuming large displacement beam theory. This paper shows that the two models described give similarities in the overall bifurcation diagram, only showing greater differences in localized frequency ranges.

sted, utgiver, år, opplag, sider
2012. s. 643-650
HSV kategori
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Identifikatorer
URN: urn:nbn:se:ltu:diva-34220Lokal ID: 85b4c747-40c5-417c-83c2-cf4cd5397f36OAI: oai:DiVA.org:ltu-34220DiVA, id: diva2:1007470
Konferanse
International Conference on Chaotic Modeling, Simulation and Applications : 12/06/2012 - 15/06/2012
Merknad
Godkänd; 2012; 20121217 (flothi); Konferensartikel i tidskriftTilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2018-05-09bibliografisk kontrollert

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http://www.cmsim.eu/papers_pdf/october_2012_papers/10_CMSIM_2012_Thiery_Aidanpaa_4_643-650.pdfhttp://www.cmsim.eu/October_2012_issue.html

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Thiery, FlorianAidanpää, Jan-Olov

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