Liquid dynamic equilibrium position during large-amplitude sloshing

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Journal of Vibration and Shock ›› 2020, Vol. 39 ›› Issue (9) : 80-87.

MIAO Nan, LIU Zhanhe, WANG Jing, WANG Xiaolu

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Abstract

When large-amplitude liquid sloshing takes place under external excitation, the sloshing characteristics and responses will present certain non-linearity, where traditional equivalent mechanical models cannot be applied immediately.The change of liquid equilibrium position in different configuration tanks during large-amplitude sloshing was studied, providing a basis for its composite equivalent modeling.The dynamic equilibrium positions of liquid in axisymmetric and non-axisymmetric tanks under constant translational excitation were studied.Considering the characteristics of different tanks, the liquid parts following equivalent gravity were modeled, and the descriptions of dynamic equilibrium position were proposed and derived and the results were compared with CFD simulation results.The description effect for the liquid dynamic equilibrium position under time-dependent excitations was examined.The correctness of the resulted dynamic equilibrium position was verified by comparing with the CFD simulations results for different configuration tanks.The method was summarized and the possible improvements were discussed.

Key words

large-amplitude sloshing / dynamic equilibrium position / center of mass position / composite equivalent modeling

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MIAO Nan, LIU Zhanhe, WANG Jing, WANG Xiaolu. Liquid dynamic equilibrium position during large-amplitude sloshing[J]. Journal of Vibration and Shock, 2020, 39(9): 80-87

References

[1] Dodge F T. The new" dynamic behavior of liquids in moving containers"[M]. San Antonio, TX: Southwest Research Inst., 2000. [2] 李遇春, 刘哲, 王立时. 基于多维模态方法的流体二维非线性强迫晃动分析[J]. 振动与冲击, 2017, 36(16): 159-165. LI Yu-chun, LIU Zhe, WANG Li-shi. A multimodal- based analysis for two- dimensional fluid nonlinear forced sloshing[J]. Journal of Vibration and Shock, 2017, 36(16): 159-165. [3] 于强，王天舒. 航天器贮箱内液体大幅晃动动力学分析[J]. 中国科学:物理学力学天文学, 2019, 49: 024514. YU Qiang, WANG Tian-shu. Dynamic analysis of large-scale amplitude liquid sloshing in the spacecraft. Sci Sin-Phys Mech Astron, 2019, 49: 024514. [4] 岳宝增. 液体大幅晃动动力学[M]. 北京: 科学出版社, 2011. YUE Bao-zeng. Construction of micro-gravitational environment for spacecraft operation[M]. Beijing: Science Press, 2011. [5] 邓明乐，岳宝增，黄华. 液体大幅晃动类等效力学模型研究[J]. 宇航学报, 2016, 37(6): 631-638. DENG Ming-le, YUE Bao-zeng, HUANG Hua. Study on the equivalent mechanical model for large amplituide slosh. Journal of Astronautics, 2016, 37(6): 631-638. [6] XUE Mi-an, ZHENG Jin-hai, LIN Peng-zhi, YUAN Xiao-li. Experimental study on vertical baffles of different configurations in suppressing sloshing pressure. Ocean Engineering, 2017, 136:178-189. [7] XUE Mi-an, LIN Peng-zhi. Numerical study of ring baffle effects on reducing violent liquid sloshing. Computers & Fluids, 2011, 52:116-129. [8] 王琼瑶, 蒋开洪, RAKHEJA Subhash, 上官文斌. 部分充液罐车内液体晃动的瞬态响应分析[J]. 振动与冲击, 2018, 37(17):9-16. WANG Qiong-yao, JIANG Kai-hong, RAKHEJA Subhash, SHANGGUAN Wen-bin. Transient response analysis of liquid slosh in a liquid- partially filled tank truck[J]. Journal of Vibration and Shock, 2018, 37(17):9-16. [9] 房忠洁，周叮，王佳栋，等. 带隔板的矩形截面渡槽内液体的晃动特性[J]. 振动与冲击, 2016, 35(3): 169-175. FANG Zhong-jie, ZHOU Ding, WANG Jia-dong, et al. Sloshing characteristics of liquid in a rectangular aqueduct with baffle [J]. Journal of Vibration and Shock, 2016, 35(3): 169-175. [10] MIAO Nan, LI Jun-feng, WANG Tian-shu. Equivalent mechanical model of large-amplitude liquid sloshing under time-dependent lateral excitations in low-gravity conditions[J]. Journal of Sound and Vibration, 2017(386): 421-432. [11] 苗楠. 微重环境复杂激励下液体晃动等效建模研究[D]. 北京: 清华大学, 2016. MIAO Nan. Research on the equivalent modeling of liquid slsohign under complex excitation in microgravity[D]. Beijing: Tsinghua University, 2016. [12] 李青. 充液挠性系统动力学分析及在航天工程中的应用研究[D]. 北京: 清华大学, 2010. LI Qing. Dynamic Analysis of Liquid-Filled Flexible Systems and Its Application Studies on Aerospace Engineering[D]. Beijing: Tsinghua University, 2010. [13] AKYILDIZ Hakan, ERDEM Ünal. Experimental investigation of pressure distribution on a rectangular tank due to the liquid sloshing[J]. Ocean Engineering, 2005, 32(11-12):1503-1516.