FORCES AND MOMENTS OF THE LIQUID FINITE AMPLITUDE SLOSHING IN A LIQUID-SOLID COU

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FORCES AND MOMENTS OF THE LIQUID FINITE AMPLITUDE SLOSHING IN A LIQUID-SOLID COUPLED SYSTEM

Nonlinear coupling dynamics between a spring-mass system and a finite amplitude sloshing system with liquid in a cylindrical tank is investigated. Based on a group of nonlinear coupling equations of six degrees of freedoms, analytical formulae of forces and moments of the liquid large amplitude sloshing were obtained. Nonlinearity of the forces and moments of the sloshing was induced by integrating on final configuration of liquid sloshing and the nonlinear terms in the liquid pressure formula. The symmetry between the formula of Ox and Oy direction proves that the derivation is correct. According to the coupled mechanism, the formulae are available in other liquid-solid coupled systems.Simulations and corresponding experimental results arecompared. It is shown that the forces and moments formulae by integrating on the final sloshing configuration are more reasonable. The omitted high-dimensional modal bases and high-order nonlinear terms and the complexity of sloshing damping are main sources of errors.水利论文5Je|%r r2|

作 者: 苟兴宇 李铁寿 马兴瑞 王本利  
作者单位:苟兴宇,李铁寿(Beijing Institute of Control Engineering, Beijing 100080, P R China)
7TcBR8w T0s0马兴瑞(China Aerospace Science and Technology Group, Beijing 100830, P R China)
D[e/WY,D P+S'cy4?0王本利(Harbin Institute of Technology, Harbin 150001, P R China) 
刊 名:应用数学和力学(英文版)  EI SCI
英文刊名:APPLIED MATHEMATICS AND MECHANICS(ENGLISH EDITION) 
年,卷(期):2001 22(5) 
分类号:V415.4 
关键词:liquid sloshing   force   moment   liquid-solid coupled system  
机标关键词:nonlinear couplingcoupling dynamicscylindrical tankliquid sloshingliquid pressurelarge amplitudecoupled systems 
基金项目:National Defense Foundation of China 
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