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- W2801867404 abstract "A finite element model is developed to study free vibration of a liquid in a tank of arbitrary geometry with a flexible membrane constraining the liquid free-surface. A variational formulation is initially developed using the Galerkin method, assuming inviscid, incompressible and irrotational flow. The resulting generalized eigenvalue problem is then reduced by considering only the elements on the liquid free-surface, which significantly reduces the computational time. The proposed physical model is subsequently implemented into the FEniCS framework to obtain coupled hydroelastic liquid-membrane frequencies and modes. The coupled frequencies are compared with those reported for rectangular and upright cylindrical tanks using analytical methods in order to illustrate the validity of the finite element model. The results are subsequently presented for a horizontal cylindrical tank with an elastic free-surface membrane for different fill ratios and tank lengths. The effects of the membrane tension on the free vibration of the liquid in the tank are further investigated by comparing the coupled liquid-membrane frequencies with slosh frequencies of the liquid alone. It is shown that sloshing frequencies can be effectively shifted to higher values to prevent resonance in partially filled moving containers." @default.
- W2801867404 created "2018-05-17" @default.
- W2801867404 creator A5010257592 @default.
- W2801867404 creator A5056771244 @default.
- W2801867404 date "2018-05-01" @default.
- W2801867404 modified "2023-10-17" @default.
- W2801867404 title "Free vibration analysis of coupled sloshing-flexible membrane system in a liquid container" @default.
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- W2801867404 doi "https://doi.org/10.1177/1077546318771221" @default.
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