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dc.contributor.authorBean, J.
dc.contributor.authorVan Schoor, G.
dc.contributor.authorDu Rand, C.P.
dc.identifier.citationBean, J. et al. 2016. Integrated procedure for vibration characterization of a magnetic bearing supported rotor delevitation system. Measurement, 85:255-268. []en_US
dc.description.abstractThis paper considers an integrated procedure to verify and validate (V&V) the rotordynamic analyses of a magnetic bearing supported rotor delevitation system (RDS). Rotor-AMB (active magnetic bearing) systems in general have complex geometries which make accurate modelling thereof a difficult task. For this purpose, simple rotordynamic analyses methods, practical measurements, and finite element method (FEM) models are applied in an integrated framework to characterize the natural vibration frequencies of the system. First, a numerical model (Rayleigh’s energy method) and an experimental modal analysis of the rotor-only are utilized to V&V the bending natural frequency estimates of a rotor FEM simulation model. Thereafter, an analytical model (two degree of freedom method) and a modal analysis of the integrated rotor-AMB system are employed to V&V the rigid body natural frequency estimates of a rotor-AMB FEM simulation model. Adjustments of the FEM models are realized using feedback to fine-tune the geometric, material, and operating properties of the discs, the rotor, and the AMBs. A practical case study of a RDS successfully demonstrates application of the integrated procedure, which ultimately facilitates improved correlation between FEM simulation and experimental resultsen_US
dc.subjectActive magnetic bearing (AMB)en_US
dc.subjectVibration analysisen_US
dc.subjectFinite element methoden_US
dc.subjectModal analysisen_US
dc.subjectNatural vibration frequenciesen_US
dc.titleIntegrated procedure for vibration characterization of a magnetic bearing supported rotor delevitation systemen_US
dc.contributor.researchID12134457 - Van Schoor, George
dc.contributor.researchID11790199 - Du Rand, Carel Petrus
dc.contributor.researchID20266332 - Bean, Jaco

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