Estimation of Acoustic Impedance for Surfaces Delimiting the Volume of an Enclosed Space
Several methods can be applied for analyses of the acoustic field in enclosed rooms namely: wave propagation, geometrical or statistical analysis. The paper presents problems related to application of the boundary elements method to modelling of acoustic field parameters. Experimental and numerica...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2013-10-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/132 |
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| author | Janusz PIECHOWICZ Ireneusz CZAJKA |
| author_facet | Janusz PIECHOWICZ Ireneusz CZAJKA |
| author_sort | Janusz PIECHOWICZ |
| collection | DOAJ |
| description | Several methods can be applied for analyses of the acoustic field in enclosed rooms namely: wave
propagation, geometrical or statistical analysis. The paper presents problems related to application of
the boundary elements method to modelling of acoustic field parameters. Experimental and numerical
studies have been combined for evaluation of acoustic impedance of the material used for the walls of
a model room. The experimental studies have been carried out by implementing a multichannel measuring
system inside the constructed model of an industrial room. The measuring system allowed simultaneous
measurements of the source parameters – the loudspeaker membrane vibration speed, the acoustic pressure
values in reception points located inside the model space as well as phase shifts between signals registered
in various reception points. The numerical modelling making use of the acoustic pressure values measured
inside the analyzed space allowed determination of requested parameters of the surface at the space
boundary. |
| format | Article |
| id | doaj-art-f8fa297e7f3b4e3fa6c048eccfea7c08 |
| institution | Matheson Library |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2013-10-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-f8fa297e7f3b4e3fa6c048eccfea7c082025-07-15T16:57:36ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2013-10-01371Estimation of Acoustic Impedance for Surfaces Delimiting the Volume of an Enclosed SpaceJanusz PIECHOWICZ0Ireneusz CZAJKA1AGH University of Science and TechnologyAGH University of Science and TechnologySeveral methods can be applied for analyses of the acoustic field in enclosed rooms namely: wave propagation, geometrical or statistical analysis. The paper presents problems related to application of the boundary elements method to modelling of acoustic field parameters. Experimental and numerical studies have been combined for evaluation of acoustic impedance of the material used for the walls of a model room. The experimental studies have been carried out by implementing a multichannel measuring system inside the constructed model of an industrial room. The measuring system allowed simultaneous measurements of the source parameters – the loudspeaker membrane vibration speed, the acoustic pressure values in reception points located inside the model space as well as phase shifts between signals registered in various reception points. The numerical modelling making use of the acoustic pressure values measured inside the analyzed space allowed determination of requested parameters of the surface at the space boundary.https://acoustics.ippt.pan.pl/index.php/aa/article/view/132acoustic impedanceacoustic measurementnumerical methodssound field |
| spellingShingle | Janusz PIECHOWICZ Ireneusz CZAJKA Estimation of Acoustic Impedance for Surfaces Delimiting the Volume of an Enclosed Space Archives of Acoustics acoustic impedance acoustic measurement numerical methods sound field |
| title | Estimation of Acoustic Impedance for Surfaces Delimiting the Volume of an Enclosed Space |
| title_full | Estimation of Acoustic Impedance for Surfaces Delimiting the Volume of an Enclosed Space |
| title_fullStr | Estimation of Acoustic Impedance for Surfaces Delimiting the Volume of an Enclosed Space |
| title_full_unstemmed | Estimation of Acoustic Impedance for Surfaces Delimiting the Volume of an Enclosed Space |
| title_short | Estimation of Acoustic Impedance for Surfaces Delimiting the Volume of an Enclosed Space |
| title_sort | estimation of acoustic impedance for surfaces delimiting the volume of an enclosed space |
| topic | acoustic impedance acoustic measurement numerical methods sound field |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/132 |
| work_keys_str_mv | AT januszpiechowicz estimationofacousticimpedanceforsurfacesdelimitingthevolumeofanenclosedspace AT ireneuszczajka estimationofacousticimpedanceforsurfacesdelimitingthevolumeofanenclosedspace |