Utilizing the phenomenon of diffraction for noise protection of roadside objects
Presented here is a constructive solution to the challenge of utilizing the diffraction phenomenon for mitigating noise around roadside objects caused by the movement of vehicles on transportation routes. In contrast to existing prototypes, the innovation of the proposed solution lies in the creatio...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2024-03-01
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| Series: | Noise Mapping |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/noise-2022-0171 |
| _version_ | 1827320883187810304 |
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| author | Louda Petr Sharko Oleksandr Stepanchikov Dmitro Sharko Artem Buczkowska Katarzyna |
| author_facet | Louda Petr Sharko Oleksandr Stepanchikov Dmitro Sharko Artem Buczkowska Katarzyna |
| author_sort | Louda Petr |
| collection | DOAJ |
| description | Presented here is a constructive solution to the challenge of utilizing the diffraction phenomenon for mitigating noise around roadside objects caused by the movement of vehicles on transportation routes. In contrast to existing prototypes, the innovation of the proposed solution lies in the creation of an active system that concentrates and directs oscillations originating from transportation sources. This active system, centered around sound absorption and reflection, establishes protective barriers and focuses on sound vibrations. The incorporation of diffraction effects within the Fraunhofer zones, along with the utilization of Fresnel lenses, directs attention towards these vibrations. The technical objective of harnessing the diffraction phenomenon for noise reduction around roadside objects involves demonstrating the feasibility of using a Fresnel zone plate (FZP) tailored for a specific oscillation frequency. This plate should demonstrate the ability to effectively manipulate sounds of varying frequencies while retaining its diffractive focusing capabilities. The intrinsic frequency characteristics of diffractive elements cannot be eliminated due to the inherent nature of sound diffraction. Consequently, it is imperative to thoroughly investigate and account for these properties. A groundbreaking discovery has been made, confirming the phenomenon of noise concentration originating from transportation sources. This revelation suggests that when a FZP is employed at frequencies other than its designed frequency, the concentration of oscillations remains. However, only the focal point of concentration shifts. Through experimentation, it has been established that the same FZP can be employed for varying wavelengths within a range of approximately ±20% while adhering to diffraction conditions. The feasibility of employing the thin lens formula to focus oscillations following the passage through a FZP has been substantiated. This solution also delves into the principal focusing, frequency, and shaping characteristics of the diffractive elements within FZPs. Furthermore, a computed estimation of the acoustic field scattered by a diffraction grating is compared against experimental data. This validates the approach and its efficacy in practical scenarios. The potential of harnessing the diffraction phenomenon to concentrate and regulate noise from transportation sources, thereby safeguarding roadside objects, is presented as a promising avenue for exploration. |
| first_indexed | 2024-04-25T00:56:00Z |
| format | Article |
| id | doaj.art-559c6e48d48f4be2bb65c516a888b30d |
| institution | Directory Open Access Journal |
| issn | 2084-879X |
| language | English |
| last_indexed | 2024-04-25T00:56:00Z |
| publishDate | 2024-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Noise Mapping |
| spelling | doaj.art-559c6e48d48f4be2bb65c516a888b30d2024-03-11T10:04:48ZengDe GruyterNoise Mapping2084-879X2024-03-01111p. 1320310.1515/noise-2022-0171Utilizing the phenomenon of diffraction for noise protection of roadside objectsLouda Petr0Sharko Oleksandr1Stepanchikov Dmitro2Sharko Artem3Buczkowska Katarzyna4Department of Material Science, Technical University of Liberec, Studentska46117, Liberec, Czech RepublicDepartment of Transport Technology and Mechanical Engineering, Kherson State Maritime Academy, 73000Kherson, UkraineDepartment of Energetics, Electrical Engineering and Physics, Kherson National Technical University, 73008Kherson, UkraineDepartment of Material Science, Technical University of Liberec, Studentska46117, Liberec, Czech RepublicDepartment of Material Science, Technical University of Liberec, Studentska46117, Liberec, Czech RepublicPresented here is a constructive solution to the challenge of utilizing the diffraction phenomenon for mitigating noise around roadside objects caused by the movement of vehicles on transportation routes. In contrast to existing prototypes, the innovation of the proposed solution lies in the creation of an active system that concentrates and directs oscillations originating from transportation sources. This active system, centered around sound absorption and reflection, establishes protective barriers and focuses on sound vibrations. The incorporation of diffraction effects within the Fraunhofer zones, along with the utilization of Fresnel lenses, directs attention towards these vibrations. The technical objective of harnessing the diffraction phenomenon for noise reduction around roadside objects involves demonstrating the feasibility of using a Fresnel zone plate (FZP) tailored for a specific oscillation frequency. This plate should demonstrate the ability to effectively manipulate sounds of varying frequencies while retaining its diffractive focusing capabilities. The intrinsic frequency characteristics of diffractive elements cannot be eliminated due to the inherent nature of sound diffraction. Consequently, it is imperative to thoroughly investigate and account for these properties. A groundbreaking discovery has been made, confirming the phenomenon of noise concentration originating from transportation sources. This revelation suggests that when a FZP is employed at frequencies other than its designed frequency, the concentration of oscillations remains. However, only the focal point of concentration shifts. Through experimentation, it has been established that the same FZP can be employed for varying wavelengths within a range of approximately ±20% while adhering to diffraction conditions. The feasibility of employing the thin lens formula to focus oscillations following the passage through a FZP has been substantiated. This solution also delves into the principal focusing, frequency, and shaping characteristics of the diffractive elements within FZPs. Furthermore, a computed estimation of the acoustic field scattered by a diffraction grating is compared against experimental data. This validates the approach and its efficacy in practical scenarios. The potential of harnessing the diffraction phenomenon to concentrate and regulate noise from transportation sources, thereby safeguarding roadside objects, is presented as a promising avenue for exploration.https://doi.org/10.1515/noise-2022-0171noise absorptiondiffractionzone plateconcentrationfocal lengthfrequency range |
| spellingShingle | Louda Petr Sharko Oleksandr Stepanchikov Dmitro Sharko Artem Buczkowska Katarzyna Utilizing the phenomenon of diffraction for noise protection of roadside objects Noise Mapping noise absorption diffraction zone plate concentration focal length frequency range |
| title | Utilizing the phenomenon of diffraction for noise protection of roadside objects |
| title_full | Utilizing the phenomenon of diffraction for noise protection of roadside objects |
| title_fullStr | Utilizing the phenomenon of diffraction for noise protection of roadside objects |
| title_full_unstemmed | Utilizing the phenomenon of diffraction for noise protection of roadside objects |
| title_short | Utilizing the phenomenon of diffraction for noise protection of roadside objects |
| title_sort | utilizing the phenomenon of diffraction for noise protection of roadside objects |
| topic | noise absorption diffraction zone plate concentration focal length frequency range |
| url | https://doi.org/10.1515/noise-2022-0171 |
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