应用数学和力学2001，Vol.22Issue(5)：465-476,12.
液固耦合系统中液体的有限幅晃动力及晃动力矩
Forces and Moments of the Liquid Finite Amplitude Sloshing in a Liquid-Solid Coupled System
苟兴宇 1李铁寿 1马兴瑞 2王本利3
作者信息
- 1. 北京控制工程研究所,
- 2. 中国航天科技集团,
- 3. 哈尔滨工业大学,
- 折叠
摘要
Abstract
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.关键词
液体晃动/力/力矩/液固耦合系统分类
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苟兴宇,李铁寿,马兴瑞,王本利..液固耦合系统中液体的有限幅晃动力及晃动力矩[J].应用数学和力学,2001,22(5):465-476,12.
