Application of the assumed mode method to the vibration analysis of rectangular plate structures in contact with fluid (CROSBI ID 627279)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Cho, Dae Seung ; Kim, Byung Hee ; Kim, Jin Hyeong ; Vladimir, Nikola ; Choi, Tae Muk
engleski
Application of the assumed mode method to the vibration analysis of rectangular plate structures in contact with fluid
This investigation is related to the natural vibration analysis of bottom and vertical plate structures in contact with fluid using the assumed mode method. The procedure can consider thick plates and stiffened panels, where the Mindlin theory is adopted for a plate and Timoshenko beam theory for the stiffeners. The eigenvalue problem is formulated using Lagrange's equation of motion and taking into account potential and kinetic energies of a plate structure and fluid kinetic energy, respectively. Potential flow theory assumptions are adopted for the fluid and the effect of free surface waves is ignored. From the boundary conditions for the fluid and structure the fluid velocity potential is derived and it is utilized for the calculation of added mass using the assumed modes. Based on the developed theoretical background, the in-house software is developed and applied to the vibration analyses of plates and stiffened panels in contact with fluid with different domain sizes and various sets of boundary conditions. Comparisons with FEM-BEM numerical results show high accuracy of the proposed procedure.
bottom plate structures; vertical plate structures; vibration; potential flow; added mass; assumed mode method
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Podaci o prilogu
777-788.
2015.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 7th International Conference on Hydroelasticity in Marine Technology
Malenica, Šime ; Vladimir, Nikola ; Senjanović, Ivo
Samobor: Vidici
978-953-95746-2-6
Podaci o skupu
7th International Conference on Hydroelasticity in Marine Technology
predavanje
16.09.2015-19.09.2015
Split, Hrvatska