基于双向流固耦合的铁路客车水箱冲击分析

戴忠晨; 闫海宁; 刘建军; 付宁宁

doi:10.7512/j.issn.1001-2303.2020.04.13

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专辑

基于双向流固耦合的铁路客车水箱冲击分析
Impact analysis of railway passenger vehicle water tank based on two-way fluid-solid interaction
2020年50卷第4期页码：79-84
纸质出版：2020
DOI： 10.7512/j.issn.1001-2303.2020.04.13
稿件说明：

移动端阅览

戴忠晨, 闫海宁, 刘建军, 等. 基于双向流固耦合的铁路客车水箱冲击分析[J]. 电焊机, 2020,50(4):79-84. DOI： 10.7512/j.issn.1001-2303.2020.04.13.

DAI Zhongchen, YAN Haining, LIU Jianjun, et al. Impact analysis of railway passenger vehicle water tank based on two-way fluid-solid interaction[J]. Eletric Welding Machine2020, 50(4): 79-84. DOI： 10.7512/j.issn.1001-2303.2020.04.13.

摘要

以铁路普通客车水箱为研究对象

针对列车在加减速过程中对水箱内液体冲击晃动的问题

通过采用双向流固耦合方法进行仿真分析。得到了箱内气液两相流分布状态

获得水箱应力时间历程图和水箱位移历程图

实现对水箱结构强度更为准确的研究分析。通过与无防波板时水箱进行比较

进一步明确了防波板在受到冲击时所起的缓冲作用

为铁路客车水箱结构的设计提供了实用可靠的分析方法。

Abstract

Taking the water tank of ordinary railway passenger vehicle as the research object

in the process of train acceleration and deceleration

the liquid sloshing problem in the water tank was modeled and numerically analyzed using a two-way fluid-solid interaction method. By studying the gas-liquid two-phase flow distribution state in the water tank

the stress time history diagram and displacement history diagram of the water tank are obtained

and a more accurate analysis of the structural strength of water tank is achieved. By comparing with a water tank without wavebreakers

the cushioning effect of the wavebreakers in sloshing is further clarified

which provides practical and reliable analysis method for the design of tank structure of railway passenger vehicle.