Common Crossing Condition Monitoring with on-Board Inertial Measurements
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Czech Technical University, Prague
Abstract
EN: A railway turnout is an element of the railway infrastructure that influences the reliability
of a railway traffic operation the most. The growing necessity for the reliability and availability in
the railway transportation promotes a wide use of condition monitoring systems. These systems are
typically based on the measurement of the dynamic response during operation. The inertial dynamic
response measurement with on-board systems is the simplest and reliable way of monitoring the railway
infrastructure. However, the new possibilities of condition monitoring are faced with new challenges of
the measured information utilization. The paper deals with the condition monitoring of the most critical
part of turnouts - the common crossing. The application of an on-board inertial measurement system
ESAH-F for a crossing condition monitoring is presented and explained. The inertial measurements are
characterized with the low correlation of maximal vertical accelerations to the lifetime. The data mining
approach is used to recover the latent relations in the measurement’s information. An additional time
domain and spectral feature sets are extracted from axle-box acceleration signals. The popular spectral
kurtosis features are used additionally to the wavelet ones. The feature monotonicity ranking is carried
out to select the most suited features for the condition indicator. The most significant features are fused
in a one condition indicator with a principal component analysis. The proposed condition indicator
delivers an almost two-time higher correlation to the lifetime as the maximal vertical accelerations. The
regression analysis of the indicator to the lifetime with an exponential fit proves its good applicability
for the crossing residual useful life prognosis.
Description
M. Sysyn: ORCID 0000-0001-6893-0018, O. Nabochenko: ORCID 0000-0001-6048-2556, V. Kovalchuk: ORCID 0000-0003-4350-1756, O. Petrenko: ORCID 0000-0002-8870-8534
Keywords
common crossing, on-board inertial measurement, condition indicator, feature ranking, data fusion, principal component analysis, КРС (ЛФ)
Citation
Sysyn M., Nabochenko O., Gerber U., Kovalchuk V., Petrenko O. Common Crossing Condition Monitoring with on-Board Inertial Measurements. Acta Polytechnica. 2019. Vol. 59, iss. 4. P. 423–434. DOI: 10.14311/AP.2019.59.0423.