[1]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,(05):29-33.[doi:10.13890/j.issn.1000-128x.2019.05.007]
 LIU Bin,XIAO Shoune,YANG Bing,et al.Study on Impacts of Energy Absorbing Devices on TrainCollision Energy Absorption[J].Electric Drive for Locomotives,2019,(05):29-33.[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()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2019年05期
页码:
29-33
栏目:
研究开发
出版日期:
2019-09-10

文章信息/Info

Title:
Study on Impacts of Energy Absorbing Devices on TrainCollision Energy Absorption
文章编号:
1000-128X(2019)05-0029-05
作者:
刘 彬肖守讷杨 冰朱 涛阳光武
(西南交通大学 牵引动力国家重点实验室,四川 成都 610031)
Author(s):
LIU Bin XIAO Shoune YANG Bing ZHU Tao YANG Guangwu
( State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan 610031, China )
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?collision?energy?absorption?device?force-displacement?relationship?energy?absorption?three-section?metal?turning?tube?FEM?simulation
分类号:
U270.1+2; O313.4
DOI:
10.13890/j.issn.1000-128x.2019.05.007
文献标志码:
A
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?eightcar?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?forcedisplacement?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.

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备注/Memo

备注/Memo:
作者简介: 刘? 彬(1993—),男,硕士,从事机车车辆设计及理论研究。
更新日期/Last Update: 2019-10-10