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| Finite Element Method for Analyzing the Stability of Continuous Welded Rail Track on Minor Radius Curve |
| LUO Xin-wei, LEI Xiao-yan, FENG Qing-song |
| East China Jiaotong University, Nanchang, Jiangxi 330013, China |
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Abstract Research purposes: The paper aimed at resolving the stability of continuous welded rail (CWR) under temperature forces by the finite element method, especially for minor-radius-curve CWR.
Research methods: A track-frame model has been developed, which includes rails, pads, sleepers and ballast resistance, and the finite element program has been exploited using numerical formulation. The influence of cross force was also considered in this model.
Research results: The dependence of the CWR displacement on temperature figures in different work conditions were arrived, and the result was compared with the result of universal formulation.
Research conclusions: Finite element method is effective on analyzing the stability of CWR. And it can analyze the lateral displacement of CWR track from locked-in temperature to damage. Compared with the universal formulation, the method can accurately present the trend of the lateral displacement of track in several work conditions, and provide an evidential material for railway department in planning of maintaining the track.
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Received: 21 November 2005
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| [1] |
雷晓燕.轨道力学与工程新方法[M].北京:中国铁道出版社,2002.
|
| [2] |
童大埙.铁路轨道[M].北京:中国铁道出版社,1996.
|
| [3] |
广钟岩,高慧安,陈岳源,等.铁路无缝线路(修订版) [M].北京:中国铁道出版社,1995.
|
| [4] |
卢耀荣.无缝线路研究与应用[M].北京:中国铁道出版社,2004.
|
| [6] |
卢耀荣.对修订无缝线路允许铺设条件的建议[J].铁道标准设计,1998,(4):46-48.
|
| [8] |
郭军锋,陈广兴.大坡道小半径区段铺设全区间无缝线路[J].铁道建筑,2001(4):5-7.
|
| [5] |
崔建初.小半径曲线铺设无缝线路的研究与应用[J].铁道建筑,2003,(3):49-50.
|
| [7] |
吕光棋.山区铁路小半径曲线地段铺设无缝线路探讨[J].铁道建筑,2004,(6):74-76.
|
|
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|
2006, Vol. 23 
