Numerical and experimental analysis of the effect of elastic membrane on liquid sloshing in partially filled tank vehicles
Numerical and experimental analysis of the effect of elastic membrane on liquid sloshing in partially filled tank vehicles
复制标题
弹性膜对部分填充罐车液体晃动影响的数值和实验分析
DOI：
10.1080/15397734.2021.1875844
复制
发表时间：
2021-02
影响因子：
3.9
通讯作者：
Jian-Hua Tang
中科院分区：
文献类型：
--
作者：
Qiong-Yao Wang;Li Jiang;Mu Chai;Hui Huang;Jian-Hua Tang
摘要对部分充液的水平圆柱形贮箱内流体晃动问题进行了数值分析。贮箱内有弹性薄膜约束自由表面。通过流体-薄膜相互作用分析，研究了薄膜对液体晃动响应的影响，包括液体载荷变化、晃动力、晃动力矩和晃动频率。对带弹性膜约束的卧式圆柱形贮箱进行了纵向和横向简谐加速度激励下的实验研究。数值模型的有效性证明了使用实验室测量数据。验证模型随后制定了一个完整的规模坦克和分析进行理想化的直线制动或转弯机动的激励下，调查膜的抗滑效果。结果表明，除了膜可以产生大幅减少晃动振幅，从而俯仰和滚转力矩;晃动频率可以大幅转移到更高的值，以避免在部分填充的坦克共振。
Abstract A numerical analysis for fluid-membrane interaction is conducted to investigate fluid slosh within a partially filled horizontal cylindrical tank with an elastic membrane restraining the free surface. The fluid-membrane interaction analysis is performed to investigate the effect of membrane on liquid slosh responses in terms of liquid load shifts, slosh forces, moments and slosh frequency. A series of experiments were conducted on a scaled horizontal cylindrical tank with an elastic membrane-like restraint under harmonic acceleration excitations in longitudinal or lateral direction. The validity of the numerical model is demonstrated using the laboratory-measured data. The validated model is subsequently formulated for a full scale tank and analysis are performed under excitations idealizing the straight-line braking or turning maneuvers to investigate the antislosh effectiveness of membrane. It is shown that the addition of membrane can yield substantial reduction in slosh amplitude and thus the pitch and roll moment; the slosh frequency can be substantially shifted to higher values to avoid resonance in partly filled tanks.
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