吸能装置对列车碰撞能量吸收的影响研究

刘彬; 肖守讷; 杨冰; 朱涛; 阳光武

doi:10.13890/j.issn.1000-128x.2019.05.007

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吸能装置对列车碰撞能量吸收的影响研究

研究开发 | 更新时间：2021-12-13

- 吸能装置对列车碰撞能量吸收的影响研究
- Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption
- 机车电传动 2019年第5期页码：29-33,39
- 作者机构：
  
  1.西南交通大学　牵引动力国家重点实验室，四川　成都　610031
- 作者简介：
  
  刘彬（1993—），男，硕士，从事机车车辆设计及理论研究。
- 基金信息：
  
  国家重点研发计划项目(2016YFB1200505);牵引动力国家重点实验室自主课题(2017TPL_Z1)
- DOI：10.13890/j.issn.1000-128x.2019.05.007
  中图分类号：
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刘彬, 肖守讷, 杨冰, 等. 吸能装置对列车碰撞能量吸收的影响研究[J]. 机车电传动, 2019,(5):29-33,39.

Bin LIU, Shoune XIAO, Bing YANG, et al. Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption[J]. Electric Drive for Locomotives, 2019,(5):29-33,39.
刘彬, 肖守讷, 杨冰, 等. 吸能装置对列车碰撞能量吸收的影响研究[J]. 机车电传动, 2019,(5):29-33,39. DOI： 10.13890/j.issn.1000-128x.2019.05.007.

Bin LIU, Shoune XIAO, Bing YANG, et al. Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption[J]. Electric Drive for Locomotives, 2019,(5):29-33,39. DOI： 10.13890/j.issn.1000-128x.2019.05.007.

摘要

为研究附加式吸能装置“载荷-位移”关系曲线的不同形式对轨道列车碰撞动能吸收效果的影响，建立了2列8编组列车一维碰撞多刚体动力学模型，并对其进行计算分析。结果表明，在具有相同设计吸能容量的前提下，将吸能装置的载荷-位移关系曲线设计成等梯度多段形式或具有一定正斜率的形式，比将其设计成单一定常型的形式吸收更多的碰撞动能；载荷-位移曲线斜率越大，吸收的能量越多。此外，研究了三节金属翻卷圆管在轴向压缩下的载荷-位移关系，发现在一定设计参数下，载荷-位移关系曲线近乎等梯度的两段形式；同时，圆管的冲程效率为76.5%，达到理论冲程效率(80%)的95%以上，证明三节金属翻卷圆管具有良好的可变形能力和吸能能力。

Abstract

In order to study the effects of different configurations of force-displacement relationship of the additional energy absorbing device on the absorption of kinetic energy during a collision, a multi-rigid body dynamics model of two identical eight-car trains was established, calculated and analyzed. The results shows that under the premise of ensuring the same designed capacity, the design of force-displacement curve as multi-step with constant gradient or one which has a certain positive slope can make the device absorb more impact kinetic energy than a steady force-displacement curve whose force is a constant during a collision. Besides, the larger the slope of the force-displacement curve, the more energy is absorbed. In addition, the force-displacement relationship of the three-section metal turning tube under axial compression was studied and is found that with certain design parameters, the force-displacement relationship curve is almost in form of two equal gradients. At the same time, the tube's stroke effciency is up to 76.5%, which is more than 95% of the theoretical stroke efficiency (80%), proving that the three-section metal turning tube has a good deformability and energy absorption capacity.

关键词

列车碰撞吸能装置载荷-位移关系能量吸收三节金属翻卷圆管有限元模型仿真

Keywords

train collisionenergy absorption deviceforce-displacement relationshipenergy absorptionthree-section metal turning tubeFEMsimulation

references

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