Assessment of vertical track geometry quality based on simulations of dynamic track-vehicle interaction

被引：19
|
作者：
Li, M. X. D. [1 ]
Berggren, E. G. [1 ]
Berg, M. [2 ]
机构：
[1] Banverket, Operat Div, Infrastruct Track & Civil Engn, SE-78185 Borlange, Sweden
[2] KTH, Div Rail Vehicles, Stockholm, Sweden
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT | 2009年 / 223卷 / 02期
关键词：
track-vehicle dynamic interaction; track geometry; RAILWAY TRACK;
D O I：
10.1243/09544097JRRT220
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A study assessing vertical track geometry quality based on simulations of dynamic track-vehicle interaction is presented in this article. The dynamic model is composed of track, vehicle, and wheel-rail contact with moving irregularities and is solved in the frequency domain by fast Fourier transform or in the time domain by constructing a filter function based on system identification. Frequency-dependent stiffness and loss factor of railpads are used in this study. Numerical simulations are carried out for a 120 km long track to demonstrate the potential benefits of enhancing track quality assessment by calculating wheel-rail forces.
引用
收藏
页码：131 / 139
页数：9
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