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全滑动状态下轮轨接触热弹性应力

赵鑫 金学松 温泽峰 吴磊

赵鑫, 金学松, 温泽峰, 吴磊. 全滑动状态下轮轨接触热弹性应力[J]. 西南交通大学学报, 2008, 21(1): 51-56.
引用本文: 赵鑫, 金学松, 温泽峰, 吴磊. 全滑动状态下轮轨接触热弹性应力[J]. 西南交通大学学报, 2008, 21(1): 51-56.
ZHAO Xin, JIN Xuesong, WEN Zefeng, WU Lei. Thermoelastic Stresses Due to Wheel-Rail Contact in Pure Sliding State[J]. Journal of Southwest Jiaotong University, 2008, 21(1): 51-56.
Citation: ZHAO Xin, JIN Xuesong, WEN Zefeng, WU Lei. Thermoelastic Stresses Due to Wheel-Rail Contact in Pure Sliding State[J]. Journal of Southwest Jiaotong University, 2008, 21(1): 51-56.

全滑动状态下轮轨接触热弹性应力

基金项目: 

国家自然科学基金(50521503)

教育部创新团队计划基金(IRT0452)

国家百篇优秀博士论文专项基金资助项目(200248)

详细信息
    作者简介:

    赵鑫(1981- ),男,Delft University of Technology博士研究生,研究方向为轮轨热响应,E-mail:swjtuzhaoxin@163.com

Thermoelastic Stresses Due to Wheel-Rail Contact in Pure Sliding State

  • 摘要: 用有限元法建立了轮轨接触热-机械载荷耦合计算模型.在传热模型中考虑了轮轨间非稳态热传导以及轮轨与环境的热对流和热辐射.着重分析因全滑动磨损轮轨接触斑扩大过程中的温度场和应力场,磨损速度对热弹性应力场的影响,以及轮轨在热-机械载荷共同作用下材料最易发生破坏的位置.计算结果表明,磨损速度对磨损过程中温度场和应力场的影响很大,轮轨接触表面附近的最大剪应力和剪应变平面与滑动方向所成夹角约为50°和140°.

     

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出版历程
  • 收稿日期:  2007-01-04
  • 刊出日期:  2008-02-25

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