Seismic Sloshing in a Horizontal Liquid Storage Tank
| Autor: | Parag Nimse, Praveen K. Malhotra, Michael Meekins |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Engineering
Slosh dynamics business.industry 0211 other engineering and technologies Mode (statistics) 020101 civil engineering Baffle Natural frequency 02 engineering and technology Building and Construction Structural engineering Liquid storage tank Finite element method 0201 civil engineering Water storage tank 021105 building & construction Fluid–structure interaction business Civil and Structural Engineering |
| Zdroj: | Structural Engineering International. 24:466-473 |
| ISSN: | 1683-0350 1016-8664 |
| DOI: | 10.2749/101686614x13854694314928 |
| Popis: | Summary A horizontal water storage tank was analyzed for seismic shaking at the 5 th level of the ITER Tokamak Complex in France. The objectives were to: (a) estimate the seismic forces in the tank; (b) calculate the sloshing response of the tank; (c) determine if baffles are needed to control sloshing; and (d) evaluate the possibility of using a single fixed support in the longitudinal direction to allow free thermal expansion of the tank. Approximate conservative analysis predicted very high sloshing wave and seismic forces in the tank. Fluid-structure interaction of the tank showed that only about 28% of the liquid moves with the tank wall and generates seismic forces in the longitudinal direction. The remaining 72% of the liquid sloshes near the free-surface and does not generate significant seismic forces. The sloshing wave is not high enough in the longitudinal direction because the fundamental sloshing mode is not excited due to its very low natural frequency. Hence baffles are not needed to control sloshing. The seismic force was low enough that a single fixed support can resist the entire seismic force in the longitudinal direction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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