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dc.contributor.authorBelotti R
dc.contributor.authorPalomba I
dc.contributor.authorRichiedei D
dc.contributor.authorTrevisani A
dc.contributor.editor
dc.date.accessioned2018-06-18T12:50:17Z
dc.date.available2018-06-18T12:50:17Z
dc.date.issued2015
dc.identifier.isbn978-84-617-3880-9
dc.identifier.urihttp://hdl.handle.net/10863/5182
dc.description.abstractFinite element analysis is adopted in several engineering fields as such structural dynamics and multibody system dynamics. Fine meshes are usually employed to guarantee model accuracy. As a consequence, models have typically very large dimensions, and hence they are difficult to handle and often prone to numerical ill conditioning. Model reduction techniques, such as the Craig Bampton method, can be extremely useful to minimize model dimensions. This paper introduces an effective ranking method for the selection of CB interior modes suitable for vibrating systems under single harmonic excitation. The goal is to keep model dimensions to a minimum while preserving system forced response accuracy. The ranking of the interior modes is carried out using coefficients based on energetic considerations and taking into account the frequency and the shape of the force exciting the system. The aforementioned coefficients provide a measure of the contribution of each interior mode to the computation of the mean mechanical energy stored by the system in a period of excitation. The method is then applied to the model of a vibratory feeder. The results shows that the proposed method provides a very effective selection of the most important interior modes and therefore allows outperforming current state-of-the-art techniques.en_US
dc.language.isoenen_US
dc.publisherIOMACen_US
dc.rights
dc.titleInterior mode selection in the Craig Bampton reduction technique based on an energy approachen_US
dc.typeBook chapteren_US
dc.date.updated2018-05-15T13:10:54Z
dc.publication.title6th International Operational Modal Analysis Conference, IOMAC 2015
dc.language.isiEN-GB
dc.description.fulltextopenen_US


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