Acoustic Radiation of a Beam Subjected to Transverse Load
In this paper, the dynamic response of a Euler–Bernoulli beam subjected to transverse harmonic forces is calculated. The method of separation of variables combined with the mode shape superposition method, which includes the determination of eigenvalues, is used to define the velocity field of the b...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Acoustics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2624-599X/5/2/27 |
| _version_ | 1797596636397961216 |
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| author | Ante Skoblar Goranka Štimac Rončević Domagoj Lanc Sanjin Braut |
| author_facet | Ante Skoblar Goranka Štimac Rončević Domagoj Lanc Sanjin Braut |
| author_sort | Ante Skoblar |
| collection | DOAJ |
| description | In this paper, the dynamic response of a Euler–Bernoulli beam subjected to transverse harmonic forces is calculated. The method of separation of variables combined with the mode shape superposition method, which includes the determination of eigenvalues, is used to define the velocity field of the beam surface. The Rayleigh integral was used to calculate the sound radiation and the beam was placed in an infinite baffle. Additional actuators are introduced in order to minimize the sound radiation, or, more specifically, the total sound power level of the vibrating beam, and their optimal position and force amplitude are determined; the conclusions were drawn from the optimization results. This paper proposes a method for faster determination of the optimal actuator parameters in order to achieve the minimum total sound power level. The validity of the obtained results is demonstrated with examples, whose solutions are compared to the results in the published literature. |
| first_indexed | 2024-03-11T02:53:55Z |
| format | Article |
| id | doaj.art-90002f6cb197435a83f5a40cb6f17eed |
| institution | Directory Open Access Journal |
| issn | 2624-599X |
| language | English |
| last_indexed | 2024-03-11T02:53:55Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Acoustics |
| spelling | doaj.art-90002f6cb197435a83f5a40cb6f17eed2023-11-18T08:48:18ZengMDPI AGAcoustics2624-599X2023-05-015246247510.3390/acoustics5020027Acoustic Radiation of a Beam Subjected to Transverse LoadAnte Skoblar0Goranka Štimac Rončević1Domagoj Lanc2Sanjin Braut3Department of Engineering Mechanics, Faculty of Engineering, University of Rijeka, 51000 Rijeka, CroatiaDepartment of Engineering Mechanics, Faculty of Engineering, University of Rijeka, 51000 Rijeka, CroatiaDepartment of Engineering Mechanics, Faculty of Engineering, University of Rijeka, 51000 Rijeka, CroatiaDepartment of Engineering Mechanics, Faculty of Engineering, University of Rijeka, 51000 Rijeka, CroatiaIn this paper, the dynamic response of a Euler–Bernoulli beam subjected to transverse harmonic forces is calculated. The method of separation of variables combined with the mode shape superposition method, which includes the determination of eigenvalues, is used to define the velocity field of the beam surface. The Rayleigh integral was used to calculate the sound radiation and the beam was placed in an infinite baffle. Additional actuators are introduced in order to minimize the sound radiation, or, more specifically, the total sound power level of the vibrating beam, and their optimal position and force amplitude are determined; the conclusions were drawn from the optimization results. This paper proposes a method for faster determination of the optimal actuator parameters in order to achieve the minimum total sound power level. The validity of the obtained results is demonstrated with examples, whose solutions are compared to the results in the published literature.https://www.mdpi.com/2624-599X/5/2/27dynamic responseEuler–Bernoulli beamminimization of acoustic radiationactuators |
| spellingShingle | Ante Skoblar Goranka Štimac Rončević Domagoj Lanc Sanjin Braut Acoustic Radiation of a Beam Subjected to Transverse Load Acoustics dynamic response Euler–Bernoulli beam minimization of acoustic radiation actuators |
| title | Acoustic Radiation of a Beam Subjected to Transverse Load |
| title_full | Acoustic Radiation of a Beam Subjected to Transverse Load |
| title_fullStr | Acoustic Radiation of a Beam Subjected to Transverse Load |
| title_full_unstemmed | Acoustic Radiation of a Beam Subjected to Transverse Load |
| title_short | Acoustic Radiation of a Beam Subjected to Transverse Load |
| title_sort | acoustic radiation of a beam subjected to transverse load |
| topic | dynamic response Euler–Bernoulli beam minimization of acoustic radiation actuators |
| url | https://www.mdpi.com/2624-599X/5/2/27 |
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