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Autonomous time frequency analysis of wagon body accelerations

conference contribution
posted on 06.12.2017, 00:00 by Steven Bleakley, Steven Senini
In the case of a railway vehicle running on track, irregularities in track geometry can lead to complex dynamic interaction between the vehicle and track. The resulting dynamic forces accelerate the track deformation process and may lead to a derailment situation. Early detection of undesirable vehicle-track interaction allows for timely intervention before the situation presents a serious derailment risk. Accelerometers mounted on the vehicle body produce signals which may provide enough information to autonomously detect and classify dynamic interactions of this nature. This paper develops an understanding of acceleration signals and introduces an autonomous analysis method suitable for low power embedded applications using a time-frequency signal representation. The method is demonstrated on a field data sample collected from a ballast hopper wagon with three-piece bogies running on low-grade track.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Start Page

34.6.1

End Page

34.6.12

Number of Pages

12

Start Date

01/01/2004

ISBN-10

0959629181

Location

Gold Coast, Qld.

Publisher

Asia Pacific Industrial Engineering and Management Society

Place of Publication

Brisbane, Qld.

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Centre for Railway Engineering; Conference; Division Meeting; Faculty of Engineering and Physical Systems;

Era Eligible

Yes

Name of Conference

Asia-Pacific Industrial Engineering and Management Systems Conference

Parent Title

Proceedings of abstracts and papers (on CD-ROM) of the 5th Asia-Pacific Industrial Engineering and Management Systems Conference & the 7th Asia-Pacific Division meeting of the International Foundation of Production Research, Gold Coast, Australia, 12-15 December 2004

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