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A signal-based fault detection and classification method for heavy haul wagons

journal contribution
posted on 24.04.2018, 00:00 authored by Chunsheng LiChunsheng Li, S Luo, Colin ColeColin Cole, Maksym SpiryaginMaksym Spiryagin, Yan SunYan Sun
© 2017 Informa UK Limited, trading as Taylor & Francis Group. This paper proposes a signal-based fault detection and isolation (FDI) system for heavy haul wagons considering the special requirements of low cost and robustness. The sensor network of the proposed system consists of just two accelerometers mounted on the front left and rear right of the carbody. Seven fault indicators (FIs) are proposed based on the cross-correlation analyses of the sensor-collected acceleration signals. Bolster spring fault conditions are focused on in this paper, including two different levels (small faults and moderate faults) and two locations (faults in the left and right bolster springs of the first bogie). A fully detailed dynamic model of a typical 40t axle load heavy haul wagon is developed to evaluate the deterioration of dynamic behaviour under proposed fault conditions and demonstrate the detectability of the proposed FDI method. Even though the fault conditions considered in this paper did not deteriorate the wagon dynamic behaviour dramatically, the proposed FIs show great sensitivity to the bolster spring faults. The most effective and efficient FIs are chosen for fault detection and classification. Analysis results indicate that it is possible to detect changes in bolster stiffness of ±25% and identify the fault location.

Funding

Category 3 - Industry and Other Research Income

History

Volume

55

Issue

12

Start Page

1807

End Page

1822

Number of Pages

16

eISSN

1744-5159

ISSN

0042-3114

Peer Reviewed

Yes

Open Access

No

Acceptance Date

20/05/2017

External Author Affiliations

South West Jiaotong University, Chengdu, China

Author Research Institute

Centre for Railway Engineering

Era Eligible

Yes

Journal

Vehicle System Dynamics