The impact of short-wave effects on deterioration of track geometry

IF 1.7 4区工程技术 Q3 ENGINEERING, CIVIL

Proceedings of the Institution of Mechanical Engineers Part F-Journal of Rail and Rapid Transit Pub Date : 2023-06-17 DOI:10.1177/09544097231184735

M. Loidolt, Stefan Marschnig

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引用次数: 1

Abstract

Short wavelength rail defects or short-wave effects of rail have a significant influence on the system behaviour of railways. The influence of additional dynamic loads due to short-wave effects on component wear and the general quality behaviour of track is shown by several research papers. However, the described effect cannot yet be quantified comprehensively. This paper attempts to fill this gap. With the help of extensive data analysis, we can show that short-wave effects lead to a track geometry that is up to 50% worse than on average. Furthermore, we show examples illustrating the influence of untreated welded joints on the development of isolated defects of the track geometry. A detailed in-depth analysis of sections with different boundary conditions finally shows that short-wave effects have a significant influence on track geometry if the amplitude of the effect exceeds 0.15 mm. This value can be recommended as a threshold value in Austria and as a reference value in other countries.

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短波效应对轨道几何形状劣化的影响

钢轨短波缺陷或钢轨短波效应对钢轨的系统性能有重要影响。一些研究论文显示了由短波效应引起的附加动载荷对部件磨损和轨道一般质量行为的影响。然而，所描述的效果还不能全面量化。本文试图填补这一空白。在大量数据分析的帮助下，我们可以显示短波影响导致轨道几何形状比平均水平差50%。此外，我们还展示了未处理的焊接接头对轨道几何形状孤立缺陷发展的影响。最后，对不同边界条件下的路段进行了详细的深入分析，结果表明，当短波效应的幅度超过0.15 mm时，短波效应对轨道几何形状有显著影响。这个值在奥地利可以作为推荐的阈值，在其他国家可以作为参考值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers Part F-Journal of Rail and Rapid Transit 工程技术-工程：机械

CiteScore

4.80

自引率

10.00%

发文量

审稿时长

7 months

期刊介绍： The Journal of Rail and Rapid Transit is devoted to engineering in its widest interpretation applicable to rail and rapid transit. The Journal aims to promote sharing of technical knowledge, ideas and experience between engineers and researchers working in the railway field.