弹性膜对部分充液罐车内液体晃动的抑制效果研究

祁文超; 王琼瑶; 平凯; 陈馨儿

doi:10.21656/1000-0887.440271

弹性膜对部分充液罐车内液体晃动的抑制效果研究

doi: 10.21656/1000-0887.440271

五邑大学智能制造学部，广东江门 529020

基金项目:

国家自然科学基金 51905384

详细信息

作者简介:
祁文超(2000—)，男，硕士生(E-mail: qiwenchao_luck@163.com)

通讯作者:
王琼瑶(1987—)，男，副教授，博士(通讯作者. E-mail: hellowqy@163.com)

中图分类号: O359⁺.1
计量
- 文章访问数: 66
- HTML全文浏览量: 29
- PDF下载量: 35
- 被引次数: 0
出版历程
- 收稿日期: 2023-09-18
- 修回日期: 2023-11-21
- 刊出日期: 2024-03-01

Study of Inhibitory Effects of Elastic Membranes on Liquid Sloshing in Partially Filled Tank Vehicles

Faculty of Intelligent Manufacturing, Wuyi University, Jiangmen, Guangdong 529020, P.R.China

摘要

摘要: 为了提高液罐车的制动性能和侧倾稳定性极限，建立了流固耦合模型，研究了弹性膜对部分充液罐车内液体晃荡的抑制效果.进行了实验室实验，实验结果验证了数值模型的有效性.验证后的模型被进一步用于研究不同的弹性膜配置对晃荡响应的影响，如液体载荷传递、晃荡力、俯仰力矩和罐壁压强.研究中考虑了两种不同的储罐配置，即没有任何阻尼装置的储罐和具有各种弹性膜组合的储罐，以进行比较.结果表明，添加弹性膜可以显著限制液体的运动，从而显著降低由晃动引起的俯仰力矩，这将提高罐车的制动性能和侧倾稳定性极限.
- 液体晃动 /
- 弹性膜 /
- 流固耦合 /
- 数值模拟 /
- OpenFOAM
Abstract: To improve the braking performance and roll stability limits of liquid tank vehicles, a numerical bi-directional fluid-structure coupling model was established to study the anti-slosh effects of elastic membranes on liquid sloshing in partially filled tank vehicles. Laboratory experiments were conducted to verify the validity of the numerical model. The validated model was further used to study the effects of various configurations of elastic membranes on sloshing responses, such as liquid load transfer, sloshing forces, pitch moments, and tank wall pressures. Two different tank configurations, namely tanks without membrane and tanks with various combinations of elastic membranes, were considered in the study for comparison. The results show that, the addition of membranes can significantly limit the movement of the liquid, resulting in dramatically reduced pitch moments caused by sloshing, which will improve the braking performance and roll stability limits of the tank vehicles.
- liquid sloshing /
- elastic membrane /
- fluid-solid coupling /
- numerical simulation /
- OpenFOAM

HTML全文

图 1 弹性膜配置

Figure 1. Elastic membrane configuration

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图 2 斜坡阶跃加速度激励

Figure 2. The rounded ramp-step acceleration input

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图 3 质心坐标以及晃动力和俯仰力矩的计算

Figure 3. Calculation of centroid coordinates, slosh forces and pitch moment

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图 4 实验装置

Figure 4. The experimental setup

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图 5 加速度传感器测量的实际加速度时间变化

Figure 5. The actual acceleration time history measured by the acceleration sensor

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图 6 0.4~7.3 s之间8个时刻的实验快照和数值模拟的比较(液体深度h=35 mm)

Figure 6. Comparison of experimental snapshots and numerical simulations for 8 moments between 0.4~7.3 s (liquid depth h=35 mm)

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图 7 溃坝对弹性板的冲击

Figure 7. The dam break impacting on an elastic plate

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图 8 三种不同网格尺寸的俯仰力矩时程比较

Figure 8. Comparison of time histories at pitch moments obtained for 3 different mesh sizes

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图 9 不同构型储罐纵向力时程和相应纵向基频的比较

Figure 9. Comparison of the time histories and corresponding frequencies of the longitudinal forces of tanks with different configurations

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图 10 不同配置储罐垂向力的时程比较

Figure 10. Time history comparison of vertical forces for different configurations of storage tanks

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图 11 不同结构储罐2.5 s时刻液体自由表面变形的比较

Figure 11. Comparison of free surface deformations of liquid for different configurations of tanks at moment 2.5 s

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图 12 不同储罐配置俯仰力矩的时程比较

Figure 12. Time history comparison of pitch moments for different tank configurations

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图 13 不同储罐配置液体载荷转移时程的比较

Figure 13. Comparison of liquid load transfer time histories for different tank configurations

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图 14 不同储罐配置液相质心坐标变化历史的比较

Figure 14. Comparison of coordinate change histories of liquid-phase mass centers for different tank configurations

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表 1 右壁上不同高度位置(a)的压强峰值时程比较

Table 1. Comparison of time histories of the peak values of pressure in different height positions (a) on the right wall

height a/H	0	0.2	0.4	0.5	0.6	0.8	1
T0	40.1	35.8	31.4	29.3	27.3	23.1	18.6
δ₀/%	-	-	-	-	-	-	-
T1	52.2	48.5	44.9	43.8	5.1	1.1	0.6
δ₁/%	+30.2	+35.7	+42.9	+49.3	-81.4	-95.1	-96.6
T2	45.4	41.3	37.2	35.5	21.8	8.8	7.8
δ₂/%	+13.2	+15.5	+18.4	+21.1	-20.1	-61.7	-58.1
T3	52.1	48.0	44.0	42.4	15.4	8.1	8.1
δ₃/%	+29.8	+34.3	+40.1	+44.7	-43.6	-64.8	-56.3

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表 2 右壁上不同高度位置(a)的压强稳态值时程比较

Table 2. Comparison of time histories of the steady-state values of pressure in different height positions (a) on the right wall

height a/H	0	0.2	0.4	0.5	0.6	0.8	1
T0	26.0	21.4	16.8	14.4	12.1	7.4	3.2
δ₀/%	-	-	-	-	-	-	-
T1	26.3	21.5	16.7	14.8	1.9	0.3	0.1
δ₁/%	+1.2	+0.6	-0.3	+2.5	-84.7	-95.8	-96.6
T2	27.6	22.9	18.2	16.0	9.9	6.1	3.3
δ₂/%	+5.9	+6.8	+8.1	+10.8	-17.7	-17.5	+4.9
T3	27.4	22.7	18.0	15.8	10.3	6.5	3.5
δ₃/%	+5.3	+5.9	+6.9	+9.5	-14.6	-11.6	+11.7

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