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Lumped Parameter Model for Liquid Sloshing in a Cylindrical Tank Equipped with Multiple Annular Baffles
| 题名： | Lumped Parameter Model for Liquid Sloshing in a Cylindrical Tank Equipped with Multiple Annular Baffles |
| 正文语种： | eng |
| 作者： | Sun, Ying;Zhou, Ding;Wang, Jiadong;Han, Huixuan |
| 作者单位： | Nanjing Tech Univ Coll Civil Engn Nanjing 211816 Peoples R China;Nanjing Tech Univ Coll Civil Engn Nanjing 211816 Peoples R China;Jiangsu Univ Fac Civil Engn & Mech Zhenjiang 212013 Jiangsu Peoples R China;Jiangsu Univ Sci & Technol Coll Civil Engn & Architecture Zhenjiang 212000 Jiangsu Peoples R China |
| 关键词： | Multiple baffles;Cylindrical tank;Velocity potential;Mass-spring model;Lumped parameter |
| 摘要： | A lumped parameter model for liquid sloshing in a rigid circular cylindrical tank with multiple rigid baffles under horizontal excitation is developed to represent continuous fluid. The subdomain method for liquid sloshing is implemented to divide the fluid domain into simple subdomains with continuous boundary conditions. The exact results of the convective velocity potential are obtained based on the continuity condition of pressure and velocity at the interfaces of liquid subdomains. By generating the same shear and moment as analytical solutions, an equivalent lumped parameter model with masses and springs is identified. The formulations of the lumped parameters in the model are analytically derived, including the convective and impulsive masses as well as their locations connected to the wall. Comparisons between the present results and available solutions confirm the feasibility and validity of the model. Detailed sloshing responses of liquid in the tank with multiple baffles are analyzed with regard to the dimensionless liquid heights, baffle positions, and sizes, respectively. The lumped parameter model can be simply assembled to make the dynamic analysis of complex fluid-structure systems with acceptable precision and a small amount of calculation. (C) 2021 American Society of Civil Engineers. |
| 出版年： | 2021 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 147 |
| 期： | 5 |
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