Nonlinear dynamics modeling and analysis of liquid sloshing in rectangle tank

doi:10.6052/0459-1879-2005-3-2004-015

Article Contents

Article Navigation > Chinese Journal of Theoretical and Applied Mechanics > 2005 > 37(3): 339-345

Nonlinear dynamics modeling and analysis of liquid sloshing in rectangle tank[J]. Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(3): 339-345. doi: 10.6052/0459-1879-2005-3-2004-015

Citation:

Nonlinear dynamics modeling and analysis of liquid sloshing in rectangle tank[J]. Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(3): 339-345. doi: 10.6052/0459-1879-2005-3-2004-015

Nonlinear dynamics modeling and analysis of liquid sloshing in rectangle tank[J]. Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(3): 339-345. doi: 10.6052/0459-1879-2005-3-2004-015

Citation:

Nonlinear dynamics modeling and analysis of liquid sloshing in rectangle tank[J]. Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(3): 339-345. doi: 10.6052/0459-1879-2005-3-2004-015

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Nonlinear dynamics modeling and analysis of liquid sloshing in rectangle tank

doi: 10.6052/0459-1879-2005-3-2004-015

清华大学航天航空学院,100084

Publish Date: 2005-05-18

Abstract

Abstract

Based on the assumption of the ideal fluid, the coupled dynamics equationsof movement of rigid tank and nonlinear sloshing of liquid are establishedthrough H-O principle, with the modified potential function introduced todescribe the moving boundary of rigid tank and fluid. Galerkin's method isused to discrete the equations. Benchmarked with some FEM and BEM results,feasibility of the present method is proved. The responses of the coupledsystem to the excitement by some forces are simulated. The equivalent theoryis used to explain the increase of the natural frequencies.
- nonlinear sloshing,liquid-filled system,rigid-liquid coupled system,equivalent model,Galerkin's method