Interface reduction for Hurty/Craig-Bampton substructured models: Review and improvements

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dc.citation.firstpage579en_US
dc.citation.journalTitleMechanical Systems and Signal Processingen_US
dc.citation.lastpage603en_US
dc.citation.volumeNumber114en_US
dc.contributor.authorKrattiger, Dimitrien_US
dc.contributor.authorWu, Longen_US
dc.contributor.authorZacharczuk, Martinen_US
dc.contributor.authorBuck, Martinen_US
dc.contributor.authorKuether, Robert J.en_US
dc.contributor.authorAllen, Matthew S.en_US
dc.contributor.authorTiso, Paoloen_US
dc.contributor.authorBrake, Matthew R.W.en_US
dc.contributor.orgMechanical Engineeringen_US
dc.date.accessioned2018-06-27T14:39:40Zen_US
dc.date.available2018-06-27T14:39:40Zen_US
dc.date.issued2019en_US
dc.description.abstractThe Hurty/Craig-Bampton method in structural dynamics represents the interior dynamics of each subcomponent in a substructured system with a truncated set of normal modes and retains all of the physical degrees of freedom at the substructure interfaces. This makes the assembly of substructures into a reduced-order system model relatively simple, but means that the reduced-order assembly will have as many interface degrees of freedom as the full model. When the full-model mesh is highly refined, and/or when the system is divided into many subcomponents, this can lead to an unacceptably large system of equations of motion. To overcome this, interface reduction methods aim to reduce the size of the Hurty/Craig-Bampton model by reducing the number of interface degrees of freedom. This research presents a survey of interface reduction methods for Hurty/Craig-Bampton models, and proposes improvements and generalizations to some of the methods. Some of these interface reductions operate on the assembled system-level matrices while others perform reduction locally by considering the uncoupled substructures. The advantages and disadvantages of these methods are highlighted and assessed through comparisons of results obtained from a variety of representative linear FE models.en_US
dc.identifier.citationKrattiger, Dimitri, Wu, Long, Zacharczuk, Martin, et al.. "Interface reduction for Hurty/Craig-Bampton substructured models: Review and improvements." <i>Mechanical Systems and Signal Processing,</i> 114, (2019) Elsevier: 579-603. https://doi.org/10.1016/j.ymssp.2018.05.031.en_US
dc.identifier.doihttps://doi.org/10.1016/j.ymssp.2018.05.031en_US
dc.identifier.urihttps://hdl.handle.net/1911/102299en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier.en_US
dc.subject.keywordComponent mode synthesisen_US
dc.subject.keywordSubstructuringen_US
dc.subject.keywordHurty/Craig-Bampton methoden_US
dc.subject.keywordInterface reductionen_US
dc.subject.keywordCharacteristic constraint modesen_US
dc.titleInterface reduction for Hurty/Craig-Bampton substructured models: Review and improvementsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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