Dynamic modelling of a bolted disc rotor assembly

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dc.contributor.advisor Roberts, Johan
dc.contributor.author Blignaut, Gert
dc.date.accessioned 2016-05-19T09:48:24Z
dc.date.available 2016-05-19T09:48:24Z
dc.date.issued 2008
dc.identifier.uri http://hdl.handle.net/10352/281
dc.description M. Tech. (Department of Mechanical Engineering, Faculty of Engineering and Technology), Vaal University of Technology en_US
dc.description.abstract A 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.extent xi, 104 leaves, illustrations en_US
dc.language.iso en en_US
dc.subject Assembled pre-loaded rotor en_US
dc.subject Pre-stressing en_US
dc.subject Rotor en_US
dc.subject Impact test en_US
dc.subject Finite Element Beam en_US
dc.subject Solid finite element en_US
dc.subject Induced stresses en_US
dc.subject.ddc 621.82 en_US
dc.subject.lcsh Rotors en_US
dc.title Dynamic modelling of a bolted disc rotor assembly en_US
dc.type Thesis en_US


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