On tailored signal processing tools for operational condition monitoring of railway switches and crossings
Paper i proceeding, 2021

Railway switches and crossings (S&C, turnout) connect different track sections and create a railway network by allowing for trains to change between tracks. This functionality comes at a cost, however, as load-inducing rail discontinuities in the switch and crossing panels cause much larger degradation rates for S&C compared to regular track. As there are hundreds of thousands of S&C in Europe, railway administrators are interested to advance solutions for reliable and resilient maintenance of these assets via remote condition monitoring. One such solution is to measure accelerations using embedded sensors mounted on the sleeper that lies underneath the crossing transition. With the adoption of this solution, this paper addresses the development of tailored signal processing tools for specifically analysing and evaluating the given acceleration signals. In particular, the methodology addresses both temporal and frequency characteristics of measured accelerations, and their integration to displacements. In this work, measured accelerations from 41 train passages and two different crossing panels have been used.

signal processing

Switches and Crossings

Railway Mechanics

Structural Health Monitoring

Condition Monitoring

Författare

Marko Milosevic

Chalmers, Mekanik och maritima vetenskaper, Dynamik

Björn Pålsson

Chalmers, Mekanik och maritima vetenskaper, Dynamik

Jens Nielsen

Chalmers, Mekanik och maritima vetenskaper, Dynamik

Håkan Johansson

Chalmers, Mekanik och maritima vetenskaper, Dynamik

Arne Nissen

Trafikverket

Proceedings of ISMA2020 including USD2020

International Conference on Noise and Vibration Engineering
Luven, ,

Modellbaserad tillståndsövervakning av växlar och korsningar (CHARMEC TS21)

Chalmers järnvägsmekanik (CHARMEC), -- .

In2Track-2 (CHARMEC EU19)

Trafikverket, 2018-11-01 -- 2021-10-31.

Europeiska kommissionen (EU), 2018-11-01 -- 2021-10-31.

Styrkeområden

Transport

Ämneskategorier

Teknisk mekanik

Infrastrukturteknik

Tillförlitlighets- och kvalitetsteknik

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Senast uppdaterat

2021-01-10