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Nonlinear vibrations of a misaligned bladed Jeffcott rotor
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0003-0318-6157
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0001-6016-6342
Number of Authors: 22016 (English)In: Nonlinear dynamics, ISSN 0924-090X, E-ISSN 1573-269X, Vol. 86, no 3, p. 1807-1821Article in journal (Refereed) Published
Abstract [en]

This paper describes the numerical and experimental investigation of the nonlinear vibration of a bladed Jeffcott rotor. The nonlinearity in the system is due to discontinuities caused by multiple contacts with an outer ring as well as the nonlinear deformation of the massless blades. Contacts occur since the rotor shaft is initially misaligned by displacing the outer ring in one direction. The aim of the paper is to develop a simple model of bladed rotor and verify whether the global dynamics of the numerical simulations can be observed experimentally. The experimental rig and data acquisition are presented in detail together with the experimental procedures. The results between the numerical simulation and experiments are compared in terms of bifurcation diagrams and waterfall plots. An overall correlation is observed between the numerical and experimental study in the case of stiff blades, with differences mainly in localized frequency ranges due to parameter variation.

Place, publisher, year, edition, pages
2016. Vol. 86, no 3, p. 1807-1821
National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
URN: urn:nbn:se:ltu:diva-10838DOI: 10.1007/s11071-016-2994-8ISI: 000386679400026Scopus ID: 2-s2.0-84981166179Local ID: 9b784952-659f-42db-a9ed-9b4eef835925OAI: oai:DiVA.org:ltu-10838DiVA, id: diva2:983786
Note

Validerad; 2016; Nivå 2; 2016-11-01 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-12-14Bibliographically approved

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Thiery, FlorianAidanpää, Jan-Olov

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  • apa
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