Typical Fragment Kinetic Energy Assessment Based on Acoustic Emission Technology
Fragment kinetic energy is an important parameter to characterize the damage power of fragments. In this study, an acoustic emission technology-based method to evaluate fragment kinetic energy is proposed. The dynamic response of the fragment impacting an aluminum alloy target plate and the relation...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/15/5914 |
| _version_ | 1797412164075520000 |
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| author | Fei Shang Liangquan Wang |
| author_facet | Fei Shang Liangquan Wang |
| author_sort | Fei Shang |
| collection | DOAJ |
| description | Fragment kinetic energy is an important parameter to characterize the damage power of fragments. In this study, an acoustic emission technology-based method to evaluate fragment kinetic energy is proposed. The dynamic response of the fragment impacting an aluminum alloy target plate and the relationship between the initial kinetic energy of the fragment impact and the acoustic emission waveform were theoretically evaluated; the numerical simulation of typical spherical fragments (8 mm diameter) penetrating the aluminum alloy target plate was performed, the wavelet energy of the acoustic emission signal was obtained using wavelet packet theory, and a mathematical model of wavelet energy and fragment kinetic energy was constructed. A fragment kinetic energy test system was established, and a fragment penetration test was performed. The analysis showed that the wavelet energy mathematical models and the fragment kinetic energy exhibited favorable consistency, and the measurement errors of the three experiments were 3%, 3.7%, and 3%. This demonstrates the effectiveness of the typical acoustic emission fragment kinetic energy test methods proposed in this study and establishes a new method for the direct measurement of fragment kinetic energy. |
| first_indexed | 2024-03-09T04:59:07Z |
| format | Article |
| id | doaj.art-6e32ec7c37c34f27bcff6e21e87b0c14 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T04:59:07Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-6e32ec7c37c34f27bcff6e21e87b0c142023-12-03T13:02:35ZengMDPI AGSensors1424-82202022-08-012215591410.3390/s22155914Typical Fragment Kinetic Energy Assessment Based on Acoustic Emission TechnologyFei Shang0Liangquan Wang1School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaFragment kinetic energy is an important parameter to characterize the damage power of fragments. In this study, an acoustic emission technology-based method to evaluate fragment kinetic energy is proposed. The dynamic response of the fragment impacting an aluminum alloy target plate and the relationship between the initial kinetic energy of the fragment impact and the acoustic emission waveform were theoretically evaluated; the numerical simulation of typical spherical fragments (8 mm diameter) penetrating the aluminum alloy target plate was performed, the wavelet energy of the acoustic emission signal was obtained using wavelet packet theory, and a mathematical model of wavelet energy and fragment kinetic energy was constructed. A fragment kinetic energy test system was established, and a fragment penetration test was performed. The analysis showed that the wavelet energy mathematical models and the fragment kinetic energy exhibited favorable consistency, and the measurement errors of the three experiments were 3%, 3.7%, and 3%. This demonstrates the effectiveness of the typical acoustic emission fragment kinetic energy test methods proposed in this study and establishes a new method for the direct measurement of fragment kinetic energy.https://www.mdpi.com/1424-8220/22/15/5914evasionacoustic transmit signalwavelet analysiskinetic energy assessment |
| spellingShingle | Fei Shang Liangquan Wang Typical Fragment Kinetic Energy Assessment Based on Acoustic Emission Technology Sensors evasion acoustic transmit signal wavelet analysis kinetic energy assessment |
| title | Typical Fragment Kinetic Energy Assessment Based on Acoustic Emission Technology |
| title_full | Typical Fragment Kinetic Energy Assessment Based on Acoustic Emission Technology |
| title_fullStr | Typical Fragment Kinetic Energy Assessment Based on Acoustic Emission Technology |
| title_full_unstemmed | Typical Fragment Kinetic Energy Assessment Based on Acoustic Emission Technology |
| title_short | Typical Fragment Kinetic Energy Assessment Based on Acoustic Emission Technology |
| title_sort | typical fragment kinetic energy assessment based on acoustic emission technology |
| topic | evasion acoustic transmit signal wavelet analysis kinetic energy assessment |
| url | https://www.mdpi.com/1424-8220/22/15/5914 |
| work_keys_str_mv | AT feishang typicalfragmentkineticenergyassessmentbasedonacousticemissiontechnology AT liangquanwang typicalfragmentkineticenergyassessmentbasedonacousticemissiontechnology |