scholarly journals Developing a new acoustic emission source classification criterion for concrete structures based on signal parameters

2022 ◽  
Vol 318 ◽  
pp. 126163
Author(s):  
Fengqiao Zhang ◽  
Yuguang Yang ◽  
Sonja A.A.M. Fennis ◽  
Max A.N. Hendriks
Keyword(s):  
Acoustic Emission ◽  
Concrete Structures ◽  
Emission Source ◽  
Classification Criterion ◽  
Signal Parameters ◽  
Acoustic Emission Source

scholarly journals Evaluation of acoustic emission source localization accuracy in concrete structures

2020 ◽  
Vol 19 (6) ◽  
pp. 2063-2074 ◽  
Author(s):  
Fengqiao Zhang ◽  
Lotfollah Pahlavan ◽  
Yuguang Yang
Keyword(s):  
Acoustic Emission ◽  
Source Localization ◽  
Concrete Structures ◽  
Influential Factors ◽  
Emission Source ◽  
Detection Zone ◽  
Localization Accuracy ◽  
Evaluation Approach ◽  
Acoustic Emission Source ◽  
Stable Characteristic

Acoustic emission source localization is a promising monitoring technique for concrete structures. However, the accuracy of acoustic emission source localization is influenced by many factors, such as the presence of cracks, which are commonly observed in existing reinforced concrete structures. In this article, the acoustic emission source localization is evaluated using a numerical model with a total number of 11,827,200 independent simulated tests. In this work, the investigated influential factors include the presence of cracks, arrival time picking error, and senor layout. The accuracy of source localization is quantified by the characteristic error defined in this article. Using the proposed wave propagation properties, a relatively stable characteristic error of 150 mm is estimated in the detection zone with the maximum sensor spacing less than 1 m. The evaluation approach and simulated characteristic error are validated experimentally by comparing the 200 manually generated signals using hammer hits on a cracked concrete beam.

Acoustic Emission Source Localization in Ring Gears from Wind Turbine Planetary Gearboxes

2019 ◽  
Vol 83 (1) ◽  
pp. 43-52 ◽  
Author(s):  
Felix Leaman ◽  
Steffen Hinderer ◽  
Ralph Baltes ◽  
Elisabeth Clausen ◽  
Brian Rieckhoff ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Wind Turbine ◽  
Source Localization ◽  
Emission Source ◽  
Acoustic Emission Source

Near-field beamforming analysis for acoustic emission source localization

Ultrasonics ◽  
2012 ◽  
Vol 52 (5) ◽  
pp. 587-592 ◽  
Author(s):  
Tian He ◽  
Qiang Pan ◽  
Yaoguang Liu ◽  
Xiandong Liu ◽  
Dayong Hu
Keyword(s):  
Acoustic Emission ◽  
Source Localization ◽  
Near Field ◽  
Emission Source ◽  
Acoustic Emission Source

Quality Testing of the Chrome Coating Based on Acoustic Emission Technology

2012 ◽  
Vol 253-255 ◽  
pp. 399-402
Author(s):  
Xing Guo Wang
Keyword(s):  
Acoustic Emission ◽  
Assessment Method ◽  
Emission Source ◽  
Uniform Motion ◽  
Emission Testing ◽  
Acoustic Emission Source ◽  
Quality Testing ◽  
Testing Technology ◽  
Chrome Coating ◽  
Acoustic Emission Testing

A assessment method on quality detected system was developed on cylinders inner wall coating through the hydraulic radial expansive load system and acoustic emission testing technology,. Put double probes linear position principle and uniform motion of load system together, and make curved positioning come true based on the technical principle of locating acoustic emission source. The disadvantage was solved that double probes can’t make acoustic emission source planar positioning. The result showed that this system can provide a precise identification and location; it has fast testing velocity and portable device.

Acoustic emission source location in composite structure by Voronoi construction using geodesic curve evolution

2009 ◽  
Vol 126 (5) ◽  
pp. 2324-2330 ◽  
Author(s):  
R. Gangadharan ◽  
G. Prasanna ◽  
M. R. Bhat ◽  
C. R. L. Murthy ◽  
S. Gopalakrishnan
Keyword(s):  
Acoustic Emission ◽  
Composite Structure ◽  
Source Location ◽  
Emission Source ◽  
Curve Evolution ◽  
Geodesic Curve ◽  
Acoustic Emission Source
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