Energetic properties of rectangular sound sources with large directionality
In this paper the author investigated energetic properties of rectangular sound sources with the following amplitude distributions of the vibration velocity: uniform, HAmmiNG's, HANNING'S and BLACKMAN'S. The frequency characteristics of the active power, reactive power and apparent po...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2015-07-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/3082 |
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| author | Andrzej Puch |
| author_facet | Andrzej Puch |
| author_sort | Andrzej Puch |
| collection | DOAJ |
| description | In this paper the author investigated energetic properties of rectangular sound sources with the following amplitude distributions of the vibration velocity: uniform, HAmmiNG's, HANNING'S and BLACKMAN'S. The frequency characteristics of the active power, reactive power and apparent power of these sources was determined, as well as their power factor. It was found that sources under investigations effectively radiate vibration energy into the far field (i.e. with the power factor equal to one) in the wave length range, in which they exhibit large directionality. The energy of vibrations radiated by a source into the far field in a unit of time is by an order of magnitude smaller in the case of HAMMING'S, HANNING'S and BLACKMAN'S distributions than in the case of a uniform distribution. Therefore, an increase of the directivity of radiation of the vibration energy into the far field by rectangular sound sources is accompanied by a decrease of the value of radiated energy. |
| format | Article |
| id | doaj-art-fa9bebe531e945928e5c62a02e3f3b64 |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2015-07-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-fa9bebe531e945928e5c62a02e3f3b642025-08-20T03:11:52ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2015-07-01121Energetic properties of rectangular sound sources with large directionalityAndrzej Puch0Institute of Physics, Higher Pedagogical School in RzeszówIn this paper the author investigated energetic properties of rectangular sound sources with the following amplitude distributions of the vibration velocity: uniform, HAmmiNG's, HANNING'S and BLACKMAN'S. The frequency characteristics of the active power, reactive power and apparent power of these sources was determined, as well as their power factor. It was found that sources under investigations effectively radiate vibration energy into the far field (i.e. with the power factor equal to one) in the wave length range, in which they exhibit large directionality. The energy of vibrations radiated by a source into the far field in a unit of time is by an order of magnitude smaller in the case of HAMMING'S, HANNING'S and BLACKMAN'S distributions than in the case of a uniform distribution. Therefore, an increase of the directivity of radiation of the vibration energy into the far field by rectangular sound sources is accompanied by a decrease of the value of radiated energy.https://acoustics.ippt.pan.pl/index.php/aa/article/view/3082 |
| spellingShingle | Andrzej Puch Energetic properties of rectangular sound sources with large directionality Archives of Acoustics |
| title | Energetic properties of rectangular sound sources with large directionality |
| title_full | Energetic properties of rectangular sound sources with large directionality |
| title_fullStr | Energetic properties of rectangular sound sources with large directionality |
| title_full_unstemmed | Energetic properties of rectangular sound sources with large directionality |
| title_short | Energetic properties of rectangular sound sources with large directionality |
| title_sort | energetic properties of rectangular sound sources with large directionality |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/3082 |
| work_keys_str_mv | AT andrzejpuch energeticpropertiesofrectangularsoundsourceswithlargedirectionality |