Acoustic Emission Monitoring of North East Trunnion Shaft on Oregon DOT Bridge 1377A I-5 Over the Columbia River, Portland, Oregon

Prine, David W.; Oleksy, Jerome E.; Northwestern University (Evanston, Ill.)

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Acoustic Emission Monitoring of North East Trunnion Shaft on Oregon DOT Bridge 1377A I-5 Over the Columbia River, Portland, Oregon

1996-05-01
By Prine, David W. ; Oleksy, Jerome E.

[PDF-1.07 MB]

English

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Creators:

Prine, David W. ; Oleksy, Jerome E.

Prine, David W. ; Oleksy, Jerome E. Less -
Corporate Creators:

Northwestern University (Evanston, Ill.)
Subject/TRT Terms:

[+]

Acoustic Emission Tests Bridges Columbia River, Portland, Oregon Cracking Fatigue Cracks Monitoring Noise
Publication/ Report Number:

ITI Technical Report No.18
Resource Type:

Tech Report
Geographical Coverage:

Portland (Oregon) ; United States

Portland (Oregon) ; United States Less -
Corporate Publisher:

Northwestern University (Evanston, Ill.). Infrastructure Technology Institute
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and Structures
Abstract:

Acoustic emission monitoring has been used to provide additional confirmation that ultrasonic indications in a forged trunnion shaft are active fatigue cracks. An advanced all digital AE monitoring system developed by Vallen Systeme GmbH of Icking Germany was applied in a setup that used linear location and guard channels. A unique signal processing approach that combines both spatial and temporal clustering was used to eliminate the large amount of

background noise present during the tests.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:b51888a4f7c864d86ac2bc9e1003efbe646f39e76d7b505f75ecb6cf6b08baae
Download URL:

https://rosap.ntl.bts.gov/view/dot/48791/dot_48791_DS1.pdf
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Acoustic Emission Monitoring of North East Trunnion Shaft on Oregon DOT Bridge 1377A I-5 Over the Columbia River, Portland, Oregon

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