期刊文献+

地铁浮轨式减振扣件轨道的轮轨接触有限元分析 被引量:2

Finite Element Analysis of Wheel-rail Contact for Metro Track with Floating Rail Damping Fastener
下载PDF
导出
摘要 为了探究浮轨式减振扣件轨道存在的短波长钢轨波磨问题,采用有限元软件ABAQUS建立三维轮轨静态接触的数值模型,探讨轨道扣件系统垂向刚度和支撑方式对轮轨接触时接触斑、接触压力和钢轨位移等接触参数的影响。结果表明:轨下结构(扣件实体、轨道板等)对浮轨式减振扣件轨道的轮轨静态接触参数影响很小;采用轨腰支撑的浮轨式减振扣件的最大接触压力大于DTVI2型扣件,接触面积小于DTVI2型扣件;浮轨式减振扣件轨道钢轨垂向位移为与DTVI2型扣件的5倍左右,横向位移比DTVI2型扣件轨道小5.2%~13.2%,钢轨翻转角比DTVI2型扣件大146.3%~206.1%;浮轨式减振扣件的垂向刚度对轮轨接触压力分布、接触面积、钢轨横向位移及钢轨翻转角基本没有影响,而对钢轨垂向位移影响较大,垂向刚度越大钢轨垂向位移越小。浮轨式减振扣件较大的钢轨垂向位移及翻转角,降低了轮轨接触的稳定性,易导致波动的轮轨力,萌生钢轨波磨现象,因而需改进该类型扣件的设计,以降低钢轨翻转角。 In order to explore the problem of short-wave rail corrugation in the floating rail damping fastener track,a numerical model of the 3D wheel-rail static contact was developed by the finite element software ABAQUS.The contact patch,contact pressure and rail displacement were calculated.The influence of vertical stiffness and rail support mode on rail contact parameters was investigated.The numerical results show that the under-rail structure(fastener,track slab,etc.)has little effect on the static contact parameters of the floating rail damping fastener track.The maximum wheel-rail contact pressure of the floating rail damping fastener(rail web support)is larger than that of the DTVI2 fastener(rail bottom support),and the contact area is smaller that of the DTVI2 fastener.The rail vertical displacement of the floating rail damping fastener track is about 5 times larger than that of the DTVI2 fastener,the transverse displacement is 5.2% to 13.2% smaller than that of the DTVI2 fastener,and the rail turning angle is 146.3% to 206.1% larger than that of the DTVI2 fastener.The vertical stiffness of floating rail damping fastener only has a great influence on the rail vertical displacement,and it has no influence on the contact pressure distribution,contact area,rail transverse displacement and rail turning angle.The large rail vertical displacement and the large rail turning angle will decrease the stability of the wheel-rail contact,and will lead to the vibration of the wheel-rail force and the rail corrugation.Therefore,the supporting mode of the fastener should be redesinged to reduce the rail turning angle.
作者 朱强强 李伟 温泽峰 ZHU Qiangqiang;LI Wei;WEN Zefeng(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu Sichuan 610031,China)
出处 《润滑与密封》 CAS CSCD 北大核心 2019年第2期59-65,共7页 Lubrication Engineering
基金 国家重点研发计划项目(2017YFB1201103-08)
关键词 浮轨式减振扣件 轮轨接触 钢轨波磨 接触压力 floating rail damping fastener wheel-rail contact rail corrugation contact pressure
  • 相关文献

参考文献3

二级参考文献44

  • 1宫全美,张达石.高速铁路地基刚度的合理取值范围[J].同济大学学报(自然科学版),2004,32(10):1390-1393. 被引量:10
  • 2马昌红,史生良,吴亚平.轮轨接触应力的有限元分析[J].石家庄铁道学院学报,2006,19(3):32-35. 被引量:15
  • 3郭俊,温泽峰,金学松,刘启跃.钢轨三维弹塑性滚动接触应力[J].西南交通大学学报,2007,42(3):262-268. 被引量:15
  • 4石亦平,周玉蓉.ABAQUS有限元分析实例详解[M].北京:机械工业出版社,2008.
  • 5KALKER J J, PIOTROWSKI J. Some New Results in Rolling Contact [J]. Vehicle System Dynamics, 1989, 18 (4) : 223-228.
  • 6XIAO Q, WANG C G, GUO G. The Research of Parallel Computing for Large-Scale Finite Element Model of Wheel/Rail Rolling Contact [C] //Proceedings of 2010 3rd IEEE International Conference on Computer Science and Information Technology. America: IEEE Press, 20101 254-257.
  • 7LIU Q Y, JINX S, ZHOU Z R. An Investigation of Friction Characteristic of Steels under Rolling-Sliding Condition [J]. Wear, 2005, 259 (1-6): 439-444.
  • 8ZHAO X, LI Z L, DOLLEVOET R. Solution of the Wheel-Rail Rolling Contact in Elasticity and Elasto-Plasticity U sing a Transient Finite Element Model [C] //8th International Conference on Contact Mechanics and Wear of Rail/ Wheel Systems. Firenze: [s. n.], 2009: 15-18.
  • 9& Kumar.美国机车轮轨接触应力的试验研究[J].试验研究,1983:21-28.
  • 10KALKER J.Three-dimensional elastic bodies in rolling contact[M].Dordrecht:Kluwer Academic Publishers,1990.

共引文献91

同被引文献11

引证文献2

二级引证文献8

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部