摘要
提出一种对称安装于列车车体两侧的创新型风阻制动装置,基于Realizable k-ε方程,针对3种不同的结构布局进行了非定常数值模拟,对纵向流场流速进行了比较分析,得出了最为经济合理的布置。对于不同时速下翼型风阻制动板制动效果进行了比较,结果表明,列车速度越高,翼型风阻板提供的辅助制动效果越显著。期望为高速列车的辅助制动领域提供一种新思路,为风阻制动板设计和研究提供更多的依据。
This paper presents an innovative drag braking device which is symmetrically installed on both sides of the train body. Based on Realizable κ-ε equation, it does the unsteady numerical simulation for three different structural and layout, makes a comparative analysis of the velocity of the longitudinal flow field, and obtains the most economical and reasonable arrangement. Mean- while, it also compares the braking effects at different speeds, and the results show that the higher the train speed is, the more remarkable auxiliary braking effect of the airfoil drag plate is. The more evidence is provded for the design and research of the auxiliary brake in the field of high-speed trains.
出处
《机械制造与自动化》
2016年第4期120-123,共4页
Machine Building & Automation
基金
大连科技学院科学技术研究项目(KJY201409)
关键词
高速列车
翼型
风阻制动
流场数值模拟
high-speed train
airfoil
drag brake
numerical simulation of flow field
