목포-제주간 해중터널의 효율적 지진해석기법

Title
목포-제주간 해중터널의 효율적 지진해석기법
Alternative Title
Efficient Analysis Method of a Mokpo-Jeju Submerged Floating Tunnel under Seismic Excitations
Author(s)
원보름; 한정삼; 고진환
Publication Year
2015-11-20
Abstract
In this study, a model order reduction technique, which is known as an efficient analysis method, 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 SFTss 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
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25036
Bibliographic Citation
한국해양해양공학회 학술발표, pp.237 - 240, 2015
Publisher
한국해양해양공학회
Type
Conference
Language
English
Publisher
한국해양해양공학회
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