Dynamic modelling of a bolted disc rotor assembly

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dc.contributor.advisorRoberts, Johan
dc.contributor.authorBlignaut, Gert
dc.date.accessioned2016-05-19T09:48:24Z
dc.date.available2016-05-19T09:48:24Z
dc.date.issued2008
dc.descriptionM. Tech. (Department of Mechanical Engineering, Faculty of Engineering and Technology), Vaal University of Technologyen_US
dc.description.abstractA project investigating the behaviour of an assembled preloaded rotor was performed for an M-Tech qualification in the Mechanical Engineering Department. Pre-Stressing of mechanical structures is widely applied to improve their performance, and in this project the behaviour of an assembled preloaded rotor was investigated. An Impact Test was done on the structure to see if induced stresses originated by a set of bolts which keep the discs system together, would influence the natural dynamic response or the rotor. Tendencies in the natural response were investigated. Analytical models like the Finite Element Beam model and the Solid Finite Element model were studied in order to find a represntative description of this particular structure's dynamic behaviour after pre-tension. From the experimental results it was apparent that the slenderness of the pre-tensioned sector influences the natural frequency. The solid finite element model appears to be the most applicable model to present the assembled rotor-disk system as a continuous shaft. Furthermore, modelling and predictions for a typical rotor and similar assembled structures can be generated from the findings.en_US
dc.format.extentxi, 104 leaves, illustrationsen_US
dc.identifier.urihttp://hdl.handle.net/10352/281
dc.language.isoenen_US
dc.subjectAssembled pre-loaded rotoren_US
dc.subjectPre-stressingen_US
dc.subjectRotoren_US
dc.subjectImpact testen_US
dc.subjectFinite Element Beamen_US
dc.subjectSolid finite elementen_US
dc.subjectInduced stressesen_US
dc.subject.ddc621.82en_US
dc.subject.lcshRotorsen_US
dc.titleDynamic modelling of a bolted disc rotor assemblyen_US
dc.typeThesisen_US
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