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Indexed by:期刊论文

Date of Publication:2015-09-03

Journal:SHIPS AND OFFSHORE STRUCTURES

Included Journals:SCIE、EI、Scopus

Volume:10

Issue:5,SI

Page Number:533-544

ISSN No.:1744-5302

Key Words:violent sloshing; elastic tank; wave elevation; sloshing pressure; structural strain

Abstract:The hydrodynamic and structural characteristics of violent sloshing in elastic tanks have been studied through a physical model test. Different liquid depths and excitation amplitudes are considered to determine the natural frequencies of the liquid in tanks. An image acquisition and data analysis system is designed to obtain the wave profile and elevation. The sloshing pressures and structural strains are measured by the corresponding acquisition systems. Wave shapes in elastic tanks are described first, and then the resonant characteristic and variation of the elevations, pressures and strains are analysed. The time variation and spatial distribution behaviours of the strain are further discussed. It is found that the double-peak phenomenon is observed at the crest of the pressure and the strain, and spectrums of the pressure and the strain are greatly influenced by the double peak. On the tank ceiling, larger strains are more likely to appear in the place near the corner.