Full Content is available to subscribers

Subscribe/Learn More  >

Railway Bridge Structural Health Monitoring Using Wireless Acoustic Emission Sensor Network

[+] Author Affiliations
Thomas Hay, Subash Jayaraman, Robert Hay

WavesinSolids LLC, State College, PA

Akos Ledeczi, Peter Volgyesi

Vanderbilt University, Nashville, TN

Paper No. JRC2009-63018, pp. 57-61; 5 pages
  • 2009 Joint Rail Conference
  • 2009 Joint Rail Conference
  • Pueblo, Colorado, USA, March 4–5, 2009
  • Conference Sponsors: Rail Transportation Division
  • ISBN: 978-0-7918-4338-3 | eISBN: 978-0-7918-3842-6
  • Copyright © 2009 by ASME


Acoustic emission monitoring of fracture-critical components of load-bearing structures such as railway bridges, provides a valuable input to condition-based maintenance planning and the allocation of maintenance resources. This paper presents a prototype wireless acoustic emission (AE) sensor network system for the structural health monitoring of aging steel railway bridges. It involves an AE sensor node, consisting of four AE channels and one strain gage input channel. Advances in data acquisition and communications instrumentation and the application of the fundamentals of fracture mechanics and artificial intelligence in signal processing have led to the development of a comprehensive, integrated system for acoustic emission monitoring. An active fatigue crack, when stressed due to the load of the on-coming freight train, emits AE. The strain gage channel senses the oncoming train and wakes up the AE channels from their hibernation mode. The wireless instrument digitizes the information, analyzes, compresses, and then transmits the filtered information to a central processing station for review by bridge engineers.

Copyright © 2009 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In