Sound Radiation due to Modal Vibrations of a Spherical Source in an Acoustic Quarterspace
Radiation of sound from a spherical source, vibrating with an arbitrary, axisymmetric, time-harmonic surface velocity, while positioned within an acoustic quarterspace is analyzed in an exact manner. The formulation utilizes the appropriate wave field expansions along with the translational addition...
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| Format: | Article |
| Language: | English |
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Wiley
2004-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2004/626983 |
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| _version_ | 1832551633698947072 |
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| author | Seyyed M. Hasheminejad Mahdi Azarpeyvand |
| author_facet | Seyyed M. Hasheminejad Mahdi Azarpeyvand |
| author_sort | Seyyed M. Hasheminejad |
| collection | DOAJ |
| description | Radiation of sound from a spherical source, vibrating with an arbitrary, axisymmetric, time-harmonic surface velocity, while positioned within an acoustic quarterspace is analyzed in an exact manner. The formulation utilizes the appropriate wave field expansions along with the translational addition theorem for spherical wave functions in combination with the classical method of images to develop a closed-form solution in form of infinite series. The analytical results are illustrated with numerical examples in which the spherical source, vibrating in the pulsating (n = 0) and translational oscillating (n = 1) modes, is positioned near the rigid boundary of a water-filled quarterspace. Subsequently, the basic acoustic field quantities such as the modal acoustic radiation impedance load and the radiation intensity distribution are evaluated for representative values of the parameters characterizing the system. |
| format | Article |
| id | doaj-art-d0bff71d76a94ea88a12c3e13c9c10cf |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2004-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-d0bff71d76a94ea88a12c3e13c9c10cf2025-02-03T06:00:57ZengWileyShock and Vibration1070-96221875-92032004-01-01115-662563510.1155/2004/626983Sound Radiation due to Modal Vibrations of a Spherical Source in an Acoustic QuarterspaceSeyyed M. Hasheminejad0Mahdi Azarpeyvand1Department of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran 16844, IranDepartment of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran 16844, IranRadiation of sound from a spherical source, vibrating with an arbitrary, axisymmetric, time-harmonic surface velocity, while positioned within an acoustic quarterspace is analyzed in an exact manner. The formulation utilizes the appropriate wave field expansions along with the translational addition theorem for spherical wave functions in combination with the classical method of images to develop a closed-form solution in form of infinite series. The analytical results are illustrated with numerical examples in which the spherical source, vibrating in the pulsating (n = 0) and translational oscillating (n = 1) modes, is positioned near the rigid boundary of a water-filled quarterspace. Subsequently, the basic acoustic field quantities such as the modal acoustic radiation impedance load and the radiation intensity distribution are evaluated for representative values of the parameters characterizing the system.http://dx.doi.org/10.1155/2004/626983 |
| spellingShingle | Seyyed M. Hasheminejad Mahdi Azarpeyvand Sound Radiation due to Modal Vibrations of a Spherical Source in an Acoustic Quarterspace Shock and Vibration |
| title | Sound Radiation due to Modal Vibrations of a Spherical Source in an Acoustic Quarterspace |
| title_full | Sound Radiation due to Modal Vibrations of a Spherical Source in an Acoustic Quarterspace |
| title_fullStr | Sound Radiation due to Modal Vibrations of a Spherical Source in an Acoustic Quarterspace |
| title_full_unstemmed | Sound Radiation due to Modal Vibrations of a Spherical Source in an Acoustic Quarterspace |
| title_short | Sound Radiation due to Modal Vibrations of a Spherical Source in an Acoustic Quarterspace |
| title_sort | sound radiation due to modal vibrations of a spherical source in an acoustic quarterspace |
| url | http://dx.doi.org/10.1155/2004/626983 |
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