基于流固耦合的非满载液罐车制动性能分析  

Braking Characteristic Analysis of Non-full Load Liquid Tank Truck Based on Fluid-structure Interaction

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作  者:宋晓娟[1,2] 李灿鹏 任月颖 Song Xiaojuan;Li Canpeng;Ren Yueying(College of Mechanical Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;Inner Mongolia Autonomous Region Key Laboratory of Intelligent Robots for Special Service,Hohhot 010051,China)

机构地区:[1]内蒙古工业大学机械工程学院,呼和浩特010051 [2]内蒙古自治区特种服役智能机器人重点实验室,呼和浩特010051

出  处:《动力学与控制学报》2023年第9期83-90,共8页Journal of Dynamics and Control

基  金:国家自然科学基金资助项目(11962020,12362004,12172182,12132002);内蒙古青年科技英才项目(NJYT23067,NJYT23029)。

摘  要:为研究非满载充液罐车紧急制动过程中液体晃动剧烈程度,采用有限单元法对液罐车减速过程中液体晃动进行模拟.分析了相同充液比下全防波板的数量差异、相同表面积的部分防波板安装位置对液体冲击力的影响,同时,将液体压力作为负载加载到防波板上研究防波板应力变化.仿真结果得出:纵向布置的全防波板随数量的增加,可以明显降低减速过程中液体对前封头的冲击力;与相同表面积的下端防波板相比,上端防波板对降低冲击力的影响较小;将液体晃动得到的压力作为防波板载荷输入,应力最大值出现在第二块防波板处.In order to study the degree of liquid sloshing during the emergency braking of non-full load tank truck,the finite element method is used to simulate the liquid sloshing during the deceleration of tank truck.The influence of the number difference of the whole wave proof plate and the installation position of part of the wave proof plate with the same surface area on the liquid impact force is analyzed under the same filling ratio.The liquid pressure is loaded onto the wave proof plate as a load to study the stress change of the wave proof plate.The simulation results show that the impact force of liquid on the front head can be obviously reduced with the increase of the number of longitudinally-arranged full wave protection plates.Compared with the lower wave-proof plate with the same surface area,the upper wave-proof plate can not only reduce the impact force,but also increase the liquid impact force;The maximum pressure obtained by liquid sloshing is used as the load input of the wave-proof plate and it is found that the maximum stress occurs in the second wave-proof plate.

关 键 词:流固耦合 液体晃动力 VOF 液罐车 

分 类 号:TH22[机械工程—机械制造及自动化]

 

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