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.
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2009 Joint Rail Conference
March 4–5, 2009
Pueblo, Colorado, USA
Conference Sponsors:
- Rail Transportation Division
ISBN:
978-0-7918-4338-3
PROCEEDINGS PAPER
Railway Bridge Structural Health Monitoring Using Wireless Acoustic Emission Sensor Network Available to Purchase
Thomas Hay,
Thomas Hay
WavesinSolids LLC, State College, PA
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Subash Jayaraman,
Subash Jayaraman
WavesinSolids LLC, State College, PA
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Akos Ledeczi,
Akos Ledeczi
Vanderbilt University, Nashville, TN
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Peter Volgyesi,
Peter Volgyesi
Vanderbilt University, Nashville, TN
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Robert Hay
Robert Hay
WavesinSolids LLC, State College, PA
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Thomas Hay
WavesinSolids LLC, State College, PA
Subash Jayaraman
WavesinSolids LLC, State College, PA
Akos Ledeczi
Vanderbilt University, Nashville, TN
Peter Volgyesi
Vanderbilt University, Nashville, TN
Robert Hay
WavesinSolids LLC, State College, PA
Paper No:
JRC2009-63018, pp. 57-61; 5 pages
Published Online:
August 20, 2009
Citation
Hay, T, Jayaraman, S, Ledeczi, A, Volgyesi, P, & Hay, R. "Railway Bridge Structural Health Monitoring Using Wireless Acoustic Emission Sensor Network." Proceedings of the 2009 Joint Rail Conference. 2009 Joint Rail Conference. Pueblo, Colorado, USA. March 4–5, 2009. pp. 57-61. ASME. https://doi.org/10.1115/JRC2009-63018
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