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contributor authorQuinn, D. Dane
contributor authorBrink, Adam R.
date accessioned2022-02-05T22:10:07Z
date available2022-02-05T22:10:07Z
date copyright11/19/2020 12:00:00 AM
date issued2020
identifier issn1048-9002
identifier othervib_143_4_041006.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4277046
description abstractThe development of reduced-order models remains an active research area, despite advances in computational resources. The present work develops a novel order-reduction approach that is designed to incorporate isolated regions that contain, for example, nonlinearitites or accumulating damage. The approach is designed to use global modes of the overall system response, which are then naturally coupled to the response in the isolated region of interest. Two examples are provided to demonstrate both the accuracy and the computational efficiency of the proposed approach. The performance of this approach is compared to the exact response corresponding to a finite element simulation for the chosen problems. In addition, the accuracy and computational efficiency are shown relative to a standard Galerkin reduction based on the linear normal modes. It is found that the proposed reduction offer computational efficiency comparable to a Galerkin reduction, but more accurately represents the response of the system when both are compared to the finite element simulation.
publisherThe American Society of Mechanical Engineers (ASME)
titleGlobal System Reduction Order Modeling for Localized Feature Inclusion
typeJournal Paper
journal volume143
journal issue4
journal titleJournal of Vibration and Acoustics
identifier doi10.1115/1.4048890
journal fristpage041006-1
journal lastpage041006-7
page7
treeJournal of Vibration and Acoustics:;2020:;volume( 143 ):;issue: 004
contenttypeFulltext


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