无线铁路接触网结构监测系统:全尺寸案例研究

Petter Nåvik , Anders Rønnquist , Sebastian Stichel
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引用次数: 17

摘要

由于列车速度的不断提高和由此产生的后果,对新的和现有的铁路接触网系统进行全面的结构测量变得越来越重要。更高的速度会增加载荷和更大的结构动态响应,需要同时满足静态和动态规定。在铁路接触网截面上直接取样是评估其结构特性的必要条件。结果既可以直接分析,也可以用于验证和/或改进数值模型,从而可以用于探索更高速度下的结构响应。本案例研究介绍并探讨了一种新开发的无线传感器系统,该系统包括多个传感器,可以任意安装在悬链线系统中的任何导线上。所有传感器在1400米范围内同步采样加速度和旋转速度。本文介绍了在挪威Hovin站安装所开发的传感器系统并对现有铁路接触网段数据进行采样的结果。对自激试验和140个预定列车通道进行了抽样。分析结果表明,这些数据可以成功地用于评估铁路接触网结构响应分量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A wireless railway catenary structural monitoring system: Full-scale case study

Full-scale structural measurements of new and existing railway catenary systems are becoming increasingly important due to continually increasing train speeds and the resulting consequences. Higher speeds lead to increased loads and greater structural dynamic responses, necessitating that both static and dynamic regulations be fulfilled. Sampling directly on railway catenary sections is necessary to assess their structural behaviour. The results can both be analysed directly and be used for validating and/or improving numerical models, which in turn can be used to explore the structural response at higher speeds. This case study presents and explores a newly developed wireless sensor system that includes multiple sensors that can be mounted arbitrarily on any of the wires in a catenary system. All sensors synchronously sample accelerations and rotational velocities over a range of up to 1400 m. This paper shows the results of mounting the developed sensor system and sampling the data of an existing railway catenary section at the Hovin station in Norway. Sampling was performed from both self-excited tests and 140 scheduled train passages. The outputs have been analysed to show that the data can be used to successfully assess railway catenary structural response components.

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