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Title |
Hydrodynamic Motion and Structural Performance of Concrete Floating Structure by Length Using Numerical Analysis
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DOI |
https://doi.org/10.4334/JKCI.2013.25.4.401 |
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Keywords |
콘크리트 부유구조체 ; 운동특성 ; 위험 파랑하중 ; 구조성능 ; 단면력 ; concrete floating structure ; hydrodynamic motion ; critical wave ; structural performance ; sectional force |
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Abstract |
In the present study, numerical analysis was performed for hydrodynamic motion and structural performance on four different concrete floating structures, which have same cross-section but different length. The hydrodynamic analysis of floating structures is carried out using ANSYS AQWA with the different 34 wave load on regular wave period from three seconds to ten seconds in 35 m water depth. In order to evaluate structural performance of floating structures under the critical wave load which obtained from hydrodynamic analysis. The integrated analysis is also carried out through the mapping method, which can directly connect the wave-induced hydraulic pressure obtained form ANSYS AQWA to Finite Element Model in ANSYS Mechanical. As a results of this study, the hydrodynamic motion of floating structures is decreased as the length of structure increased. It means that the effect of wave-structure interaction is strongly dependent on the relationship between a wave period and a length of structure. Moreover, it is found that tension stress on bottom slab of floating structure is occurred by the critical wave load, the sectional force is not influenced by length of a structure.
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