[1]梁炬星.一种新型切削式防爬器研究[J].机车电传动,2018,(03):48-51.[doi:10.13890/j.issn.1000-128x.2018.03.009]
 LIANG Juxing.Study of a New Type of Broaching Anti-climber[J].Electric Drive for Locomotives,2018,(03):48-51.[doi:10.13890/j.issn.1000-128x.2018.03.009]
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一种新型切削式防爬器研究()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2018年03期
页码:
48-51
栏目:
研究开发
出版日期:
2018-05-10

文章信息/Info

Title:
Study of a New Type of Broaching Anti-climber
文章编号:
1000-128X(2018)03-0048-04
作者:
梁炬星
(中车南京浦镇车辆有限公司,江苏南京 210031)
Author(s):
LIANG Juxing
( CRRC Nanjing Puzhen Co., Ltd., Nanjing, Jiangsu 210031, China )
关键词:
切削式防爬器缓冲峰值力吸能装置切削厚度
Keywords:
broaching anti-climber buffer peak force energy absorption device cutting thickness
分类号:
O313.4;O347.7;U298.5+1
DOI:
10.13890/j.issn.1000-128x.2018.03.009
文献标志码:
A
摘要:
为了达到高速列车碰撞过程中整车的均布吸能,实现列车各车辆同时参与碰撞吸能,提高车辆耐撞性的目的,针对现有切削式防爬器实际应用情况设计了一种切削厚度随切削行程渐变、切削行程可控的新型切削式防爬器;采用有限元软件LS-DYNA 对防爬器切削吸能过程进行了数值仿真,研究了初始切削厚度对整个切削吸能过程的影响;开展了防爬器碰撞冲击试验,考察了防爬器的缓冲吸能特性,并与数值分析结果进行了对比。结果表明,当初始切削厚度较薄时,切屑呈螺旋状,卷曲曲率较小,初始峰值力较低,切削过程更稳定。由于切削行程和厚度的可
Abstract:
In order to achieve the uniform energy absorption of the vehicle during the collision process of the high-speed EMUs and all vehicles involved in collision energy absorption, to improve the crashworthiness of the vehicle, a new type of broaching anticlimber was designed in view of the actual application of the existing anti-climber, which could be controlled by cutting thickness and cutting stroke. By using the finite element software LS-DYNA, the effect of initial cutting thickness on the whole cutting absorption process was studied. The impact test of the anti-climber was carried out and the cushion stroke of the anti-climber was investigated, and the results were compared with the numerical analysis results. The results showed that when the initial cutting thickness was thin, the chip had a spiral shape, the crimping curvature was small, the initial peak force was low, and the cutting process was more stable. Due to the adjustable cutting stroke and thickness, the interface force could be controlled in a certain range during the collision, which was beneficial to ensure the safety of the body and crew.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:梁炬星(1985-),男,工程师,主要从事轨道交通车辆车体结构设计。
更新日期/Last Update: 2018-05-10