| 基于轮轨接触参数的固定辙叉设计方法 |
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| 引用本文： | 曹洋,王平,赵卫华.基于轮轨接触参数的固定辙叉设计方法[J].西南交通大学学报,2012,47(4):605-610,617. |
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| 作者姓名： | 曹洋 王平 赵卫华 |
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| 作者单位： | 西南交通大学高速铁路线路工程教育部重点实验室,四川成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目(51078320);西南交通大学博士生创新基金的资助 |
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| 摘 要： | 为了更好地设计固定辙叉结构,改进轮对与辙叉间的相互作用关系,提出了以接触参数为基础的设计方法,并对60 kg/m钢轨12号固定辙叉心轨及翼轨顶面的各部位尺寸进行优化.结果表明:将此固定辙叉心轨顶宽20 mm处降低值增大至4 mm,取消翼轨顶面1∶20横坡,并将翼轨顶面抬高范围改为从辙叉咽喉至心轨顶宽50 mm处,可较好的改善其轮轨关系,验证了本文设计方法的可行性和有效性.
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| 关 键 词： | 固定辙叉 轮轨关系 接触参数 结构不平顺 结构设计 |
Design Method for Rigid Frog Based on Wheel/Rail Contact Parameters |
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| CAO Yang
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WANG Ping
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ZHAO Weihua.Design Method for Rigid Frog Based on Wheel/Rail Contact Parameters[J].Journal of Southwest Jiaotong University,2012,47(4):605-610,617. |
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| Authors: | CAO Yang WANG Ping ZHAO Weihua |
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| Institution: | (Key Laboratory of High-Speed Railway Engineering,Ministry of Education,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | A design method of rigid frog structure based on contact parameters was proposed in order to improve its wheel/rail interaction relationship.Using the method,the top profiles of nose rail and wing rail of No.12 rigid frog were optimized.The results show that the wheel/rail relationship can be improved effectively by lowering the height of the nose-rail section with the head width of 20 mm by 4 mm,eliminating the 1∶20 cross slope of the wing-rail head,and modifying the wing-rail head rising scope to be from the throat to the nose-rail section with the head width of 50 mm.Therefore,the proposed method is feasible and valid. |
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| Keywords: | rigid frog wheel/rail relationship contact parameters structure irregularity structure design |
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