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	基于ALE有限元方法的充液刚体耦合动力学仿真
	周宏 ; 李俊峰 ; 王天舒 ; ZHOU Hong ; LI Junfeng ; WANG Tianshu
	2010-05-14 ; 2010-05-14
关键词	刚-液耦合动力学 液体晃动 ALE有限元方法 rigid-liquid coupling dynamics liquid sloshing arbitrary Lagrangian-Eulerian (ALE) finite element method O357.1 O241.82
其他题名	Dynamics simulation of a fluid-filled coupling system using the ALE finite element method
中文摘要	假设液体是不可压缩的粘性液体,用Jourdain形式的普遍动力学原理建立充液系统的动力学控制方程,并采用交替积分法求解此数值计算模型。液体模块采用Lagrange-Euler描述方法建立有限元计算模型;充液刚体模块利用二阶显式Runge-Kutta格式离散的常微分方程组。在刚-液耦合界面将传递系统质心、转动惯量、晃动力、晃动力矩以及惯性力等耦合物理量。计算结果表明该方法能正确地反映充液耦合系统的运动学特征。与假设液面未扰充液系统的响应结果相比,耦合计算获得的结果具有较大幅度的角速度响应。; The kinematical and kinetic characteristics of a rigid-liquid interaction system were numerically simulated with the assumption that the fluid is incompressible and viscous. The dynamical equations of a liquid-filled tank were deduced using Jourdain principle, including the momentum and angle momentum equations for the coupling system and Navier-Stokes equations for the liquid sloshing. The arbitrary Lagrangian-Eulerian (ALE) finite element method was used to simulate the flows in the tank for moving free surface boundary conditions. The fluid fields were then used in the interactive system equations to calculate the kinematical response. The liquid sloshing was assumed to have two effects on the coupled system, the force and momentum exerted on the container's wall and the change in the inertia tensor of the liquid due to the free surface motion. Comparison of the numerical results with those neglecting the sloshing effects indicates that the system has larger angle velocity amplitudes, which shows the characteristics of the fluid-filled coupled system.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/33618]
专题	清华大学
推荐引用方式 GB/T 7714	周宏,李俊峰,王天舒,等. 基于ALE有限元方法的充液刚体耦合动力学仿真[J],2010, 2010.
APA	周宏,李俊峰,王天舒,ZHOU Hong,LI Junfeng,&WANG Tianshu.(2010).基于ALE有限元方法的充液刚体耦合动力学仿真..
MLA	周宏,et al."基于ALE有限元方法的充液刚体耦合动力学仿真".(2010).

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