Computation and Measurement of Liquid Tank Vibration Mode with Fluid Load

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Journal of Dalian Maritime University ›› 2014, Vol. 40 ›› Issue (3) : 84-88.

LIANG Bingnan¹,YU Hongliang^1,2

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Abstract

The liquid tanks are installed in ships and offshore platforms, and the impact of liquid medium in the liquid tanks on vibration performances of the hull should not be overlooked. The paper developed a finite element mathematical model of fluidstructure interaction (FSI) for the steel tank. The FSI dynamics in different liquid heights in liquid tanks were numerically simulated and analyzed by the FEM software ADINA. By adopting LMS structural mode analysis system, the paper compared inherent frequencies and modes of lowfrequencyvibration. Simulation results are in good agreement with the experimental ones, which verifies the effectiveness of the simulation method. The findings and methods can be reference for fluid structure interaction.

Key words

ship / liquid tanks / vibration modal / inherent frequency / added mass / solidfluid coupling / finite element method

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LIANG Bingnan, YU Hongliang. Computation and Measurement of Liquid Tank Vibration Mode with Fluid Load[J]. Journal of Dalian Maritime University. 2014, 40(3): 84-88

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