Numerical analysis of oil liquid sloshing characteristics in fuel tank with different baffle structures

被引：0
|
作者：
Zhang E.-H. [1 ,2 ]
He R. [1 ]
Su W.-D. [3 ]
机构：
[1] School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang
[2] School of Mechanical Engineering, Inner Mongolia University of Science & Technology, Baotou
[3] Yapp Automotive Parts Co. Ltd., Yangzhou
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2021年 / 51卷 / 01期
关键词：
Automobile fuel tank; Baffle structure; Oil liquid sloshing; Time-area value; Vehicle engineering;
D O I：
10.13229/j.cnki.jdxbgxb20190925
中图分类号：
学科分类号：
摘要：
Under variable working conditions, the repeated oil liquid sloshing often results in sloshing noise, the interruption of oil liquid supply under the fast change of acceleration, the increase of evaporative emissions, and the structural damage of fuel tank and its inner parts. To optimize the suppression structure of oil liquid sloshing, the 3D finite element models of fuel tank filled with oil liquid are established, and the rationality of simulation parameters are verified. The accuracy of simulation results are verified by test. The influences of baffles with no holes, few holes and a large number of holes, high and low baffles and six different shapes of baffles on oil liquid sloshing are simulated by VOF method. The concept of time-area value is proposed on the basis of free oil liquid surface area. Comparing the parameters of oil liquid sloshing, it can be seen that the best structure is baffles with few holes and circular holes, which effectively reduces the pressure of oil liquid sloshing and time-area value. The corrugated and straight baffles have positive influence on suppressing the sloshing pressure of oil liquid at the center point and on the center line, respectively. The sloshing pressure of oil liquid is the greatest in fuel tank with eccentric arc baffles. The maximum and minimum time-area values of oil liquid are in fuel tank with multi-arc and corrugated baffles, respectively. The baffles obviously attenuate the change amplitude of free oil liquid surface area. The combined action of inertia force and gravity is beneficial to the decrease in time-area values. © 2021, Jilin University Press. All right reserved.
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页码：83 / 95
页数：12
相关论文
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