Acoustic localisation in a two-dimensional granular medium
We focus on localizing the source of acoustic emissions within a compressed two-dimensional granular ensemble of photoelastic disks, having as main information the arrival times of the acoustic signal to 6 sensors located in the boundaries of the system. By estimating, thanks to the photoelasticity...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_15005.pdf |
| _version_ | 1818725328740155392 |
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| author | Levy dit Vehel Victor Haddjeri Ange Ramos Osvanny |
| author_facet | Levy dit Vehel Victor Haddjeri Ange Ramos Osvanny |
| author_sort | Levy dit Vehel Victor |
| collection | DOAJ |
| description | We focus on localizing the source of acoustic emissions within a compressed two-dimensional granular ensemble of photoelastic disks, having as main information the arrival times of the acoustic signal to 6 sensors located in the boundaries of the system. By estimating, thanks to the photoelasticity of the grains, the wave speed at every point of the structure, we are able to compute the arrival times from every point of the system to the sensors. A comparison between the arrival time differences between every set of computed values to those from the actual measurements allows finding the source of the acoustic emissions. |
| first_indexed | 2024-12-17T21:40:34Z |
| format | Article |
| id | doaj.art-77a17f9064924ff2a08d58acd2032c46 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-17T21:40:34Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-77a17f9064924ff2a08d58acd2032c462022-12-21T21:31:38ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012491500510.1051/epjconf/202124915005epjconf_pg2021_15005Acoustic localisation in a two-dimensional granular mediumLevy dit Vehel Victor0Haddjeri Ange1Ramos Osvanny2Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de LyonInstitut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de LyonInstitut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de LyonWe focus on localizing the source of acoustic emissions within a compressed two-dimensional granular ensemble of photoelastic disks, having as main information the arrival times of the acoustic signal to 6 sensors located in the boundaries of the system. By estimating, thanks to the photoelasticity of the grains, the wave speed at every point of the structure, we are able to compute the arrival times from every point of the system to the sensors. A comparison between the arrival time differences between every set of computed values to those from the actual measurements allows finding the source of the acoustic emissions.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_15005.pdf |
| spellingShingle | Levy dit Vehel Victor Haddjeri Ange Ramos Osvanny Acoustic localisation in a two-dimensional granular medium EPJ Web of Conferences |
| title | Acoustic localisation in a two-dimensional granular medium |
| title_full | Acoustic localisation in a two-dimensional granular medium |
| title_fullStr | Acoustic localisation in a two-dimensional granular medium |
| title_full_unstemmed | Acoustic localisation in a two-dimensional granular medium |
| title_short | Acoustic localisation in a two-dimensional granular medium |
| title_sort | acoustic localisation in a two dimensional granular medium |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_15005.pdf |
| work_keys_str_mv | AT levyditvehelvictor acousticlocalisationinatwodimensionalgranularmedium AT haddjeriange acousticlocalisationinatwodimensionalgranularmedium AT ramososvanny acousticlocalisationinatwodimensionalgranularmedium |