Abstract The flexible porous elastic baffle was proposed as an anti-slosh device to reduce the liquid sloshing in a swaying/rolling rectangular tank. The analytical model was developed to assess the effectiveness of the porous elastic baffle on liquid sloshing. A one-dimensional beam model, along with Darcy's model, was taken to implement the characteristics of porous elastic baffle. The matched eigenfunction expansion method (MEEM) with the Green function for the liquid sloshing interaction with the porous elastic baffle was employed. Numerical results were presented that illustrate the effects of the baffle's geometry (porosity, height), and structural parameters (flexural rigidity, stiffness of mooring line) on the liquid sloshing. Through parametric studies, the flexural rigidity, porosity, and mooring line's stiffness have to be adjusted properly to enhance the sloshing-reduction effect. The flexible porous elastic baffle showed the potential as a useful anti-slosh device within a limited application range compared with a rigid baffle.

中文翻译：

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带有柔性多孔弹性挡板的摇摆/滚动矩形罐中的液体晃动

摘要 提出了一种柔性多孔弹性挡板作为一种防晃装置，以减少摇晃/滚动矩形罐中的液体晃动。开发了分析模型来评估多孔弹性挡板对液体晃动的有效性。一维梁模型与达西模型一起被用来实现多孔弹性挡板的特性。采用具有格林函数的匹配本征函数展开法 (MEEM) 用于液体晃动与多孔弹性挡板的相互作用。数值结果说明了挡板的几何形状（孔隙率、高度）和结构参数（弯曲刚度、系泊绳的刚度）对液体晃动的影响。通过参数化研究，弯曲刚度、孔隙率和系泊缆线” 必须适当调整刚度以增强减晃效果。与刚性挡板相比，柔性多孔弹性挡板在有限的应用范围内显示出作为有用的防晃动装置的潜力。