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Transient response analysis by model order reduction of a Mokpo-Jeju submerged floating tunnel under seismic excitations
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 Title & Authors
Transient response analysis by model order reduction of a Mokpo-Jeju submerged floating tunnel under seismic excitations
Han, Jeong Sam; Won, Boreum; Park, Woo-Sun; Ko, Jin Hwan;
 Abstract
In this study, a model order reduction technique is applied to solve the transient responses of submerged floating tunnel (SFT) from Mokpo to Jeju under seismic excitations. Because the SFT is a very long structure as well as a transient response analysis requires large amount of computational resources, the model order reduction is mandatory in the design stage of the SFT. Thus, we apply a model order reduction based on Krylov subspace to the simplified finite element model of the SFT. The responses of the reduced order model are compared with those of the full order model and also are verified by referring a previous work. In conclusion, the computational resources are dramatically reduced with an acceptable accuracy by using the model order reduction, which eventually is useful for designing the full-scale model of SFTs.
 Keywords
computational mechanics;dynamic analysis;earthquake/seismic ananysis;finite element method (FEM);numerical methods;offshore/coastal structures;simulation;structural design;
 Language
English
 Cited by
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Structural Engineering and Mechanics, 2016. vol.59. 2, pp.243-259 crossref(new window)
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The role of cable stiffness in the dynamic behaviours of submerged floating tunnel, MATEC Web of Conferences, 2017, 138, 02026  crossref(new windwow)
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Transient response analysis of tapered FRP poles with flexible joints by an efficient one-dimensional FE model, Structural Engineering and Mechanics, 2016, 59, 2, 243  crossref(new windwow)
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Performance Evaluation of Submerged Floating Tunnel Subjected to Hydrodynamic and Seismic Excitations, Applied Sciences, 2017, 7, 11, 1122  crossref(new windwow)
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