Acoustic modelling of surface sources. Part III. Piston model, error of the model, axisymmetrical problem
Two piston models of a plane axisymmetric source were compared. In the first of them, the constant vibration velocities of the elements were calculated as an integral mean value of the assumed vibration velocity. However, in the other, as arithmetic mean value of discrete values of vibration velocit...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2014-01-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1275 |
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| author | A. BRAŃSKI |
| author_facet | A. BRAŃSKI |
| author_sort | A. BRAŃSKI |
| collection | DOAJ |
| description | Two piston models of a plane axisymmetric source were compared. In the first of them, the constant vibration velocities of the elements were calculated as an integral mean value of the assumed vibration velocity. However, in the other, as arithmetic mean value of discrete values of vibration velocity. These models were compared for arbitrary discretization and for optimal one. For both models numerical experiments were carried out, first of all, as a function of the number of the discrete values of vibration velocity and the next as a function of nondimensional wave number. Numerical examples pointed out the parameters of such a source for which a "good" piston model may be built based on several discrete values of vibration velocity. |
| format | Article |
| id | doaj-art-cfeb6457898a49409bf955dffca4b215 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-cfeb6457898a49409bf955dffca4b2152025-08-20T03:30:25ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-01-01204Acoustic modelling of surface sources. Part III. Piston model, error of the model, axisymmetrical problemA. BRAŃSKI0Institute of Technology, Pedagogical CollegeTwo piston models of a plane axisymmetric source were compared. In the first of them, the constant vibration velocities of the elements were calculated as an integral mean value of the assumed vibration velocity. However, in the other, as arithmetic mean value of discrete values of vibration velocity. These models were compared for arbitrary discretization and for optimal one. For both models numerical experiments were carried out, first of all, as a function of the number of the discrete values of vibration velocity and the next as a function of nondimensional wave number. Numerical examples pointed out the parameters of such a source for which a "good" piston model may be built based on several discrete values of vibration velocity.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1275 |
| spellingShingle | A. BRAŃSKI Acoustic modelling of surface sources. Part III. Piston model, error of the model, axisymmetrical problem Archives of Acoustics |
| title | Acoustic modelling of surface sources. Part III. Piston model, error of the model, axisymmetrical problem |
| title_full | Acoustic modelling of surface sources. Part III. Piston model, error of the model, axisymmetrical problem |
| title_fullStr | Acoustic modelling of surface sources. Part III. Piston model, error of the model, axisymmetrical problem |
| title_full_unstemmed | Acoustic modelling of surface sources. Part III. Piston model, error of the model, axisymmetrical problem |
| title_short | Acoustic modelling of surface sources. Part III. Piston model, error of the model, axisymmetrical problem |
| title_sort | acoustic modelling of surface sources part iii piston model error of the model axisymmetrical problem |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1275 |
| work_keys_str_mv | AT abranski acousticmodellingofsurfacesourcespartiiipistonmodelerrorofthemodelaxisymmetricalproblem |