铁道标准设计2017，Vol.61Issue(6)：38-43,6.DOI:10.13238/j.issn.1004-2954.2017.06.009
60kg/m钢轨和60N钢轨轮轨接触几何关系对比分析
Comparison Analysis of Wheel-rail Contact Geometric Relationship between 60 kg/m Rail and 60 N rail
全顺喜1
作者信息
- 1. 中铁第四勘察设计院集团有限公司,武汉 430063
- 折叠
摘要
Abstract
In order to reveal the wheel-rail contact geometric relationship of newly designed 60N rail, a detailed research on wheel-rail contact geometric relationship between 60 kg/m-1 rail ( abbreviated as 60 rail) and 60N rail and their adaptation to rail base slope and yaw angle is conducted by means of common trace line method based on the wheel treads of LM and LMA wheels. Experimental results demonstrate that when matching with the wheel treads of LM and LMA wheels, the wheel-rail contact point of 60 N rail is more close to the center of the rail and away from the gauge corner compared with the 60 rail. Before the flange contact occurs, the equivalent taper of 60 N rail has little change with the lateral displacement of wheel-set compared with 60 rail, which illustrates that the 60N rail is effective to improve the geometric relationship of wheel-rail contact. Compared with 60 rail, the 60N rail better matches the LM wheel tread where the rail cant is 1/20;while, in the case of 1/40 rail cant, the 60N rail better matches the LMA wheel tread. The yaw angle has much the same effect on both 60 rail and 60N rail.关键词
60N钢轨/轨头轮廓/车轮踏面/轮轨接触几何关系Key words
60N rail/Rail head profile/Wheel tread/Wheel-rail contact geometric relationship分类
交通工程引用本文复制引用
全顺喜..60kg/m钢轨和60N钢轨轮轨接触几何关系对比分析[J].铁道标准设计,2017,61(6):38-43,6.
