Acoustic Emission dataset for impact localization: numerical and experimental case studies 机器收录·待核验

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Acoustic Emission dataset for Defect Detection in Aluminum plates

Simulated data

File name: Simulation.zip

Simulated AE signals based on a ray-tracing algorithm taking into consideration reflections with the mechanical boundaries of the medium (reflection up to the 4th order), which corresponds to a 1x1x0.003 m square aluminum plate.

Each signal has been created by simulating the propagation between a transmitter (Tx, index from 1 to 40) and a Receiver (Rx, index from 1 to 25), grouped by Tx position and saved as a .mat struct ('data') containing the following fields:

data.Rx = 2 x 25 matrix containing in the first and second row the x and y axis of the Rx position

data.Rx = 2 x 25 matrix containing in the first and second row the x and y axis of the Tx position

data.data = 8000 x 25 matrix containing the transmitted, propagated AE signal from Tx to Rx organized by column. Each AE instance constitutes of 8000 samples acquired at a sampling frequency of 2 MHz (indicated in the file name), one for each Rx given that Tx position.

data.Label = 1x25 vector containing the ToA labels associated with each of the 25 Tx-rx pairs (per Tx position) computed by means of the Akaike Information Criterion.

Experimental data

File name: Test_x0.xx_y0.yyFs2MHz_1x1x0.003_Al.csv

Experimental data collected with custom AE instrumentation as described in Ref 1.

One single file is a collection of 3 tests (three repetitions of the impact event at the same position), each of them containing three signals acquired simultaneously by three sensors located in proximity of three corners of a 1x1x0.003 aluminum plate having the same geometrical and numerical characteristics of the numerical one. The sensors acquire 5000 samples at a rate of 2 MHz (indicated in the file name) with a pre-trigger window of 1500 samples. The specific coordinates of the sensors are:

s1 [x = 0.05, y = 0.95] m

s2 [x = 0.05, y = 0.05] m

s3 [x = 0.95, y = 0.05] m

There are 9 files associated with as

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落地页

https://zenodo.org/records/10875042

许可证

CC-BY-4.0 (置信:verified_official)

发布年份

2024

发布方

Zenodo

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