Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces
Noise pollution has been given more attention due to its negative impacts on human health and disease. The portable low-frequency noise reduction device we developed in this research can provide an effective way for solving low-frequency noise pollution problem in the small space. This work describe...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/6241935 |
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| _version_ | 1849304596923547648 |
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| author | Chao Wang Haiyang Gao Liyao Yu Tiantian Yu Wenhui Yan Qiumeng Xue |
| author_facet | Chao Wang Haiyang Gao Liyao Yu Tiantian Yu Wenhui Yan Qiumeng Xue |
| author_sort | Chao Wang |
| collection | DOAJ |
| description | Noise pollution has been given more attention due to its negative impacts on human health and disease. The portable low-frequency noise reduction device we developed in this research can provide an effective way for solving low-frequency noise pollution problem in the small space. This work describes the design principle and the prototype structures for two versions of V1.5 and V2.0 and builds the noise test systems for small spaces, respectively. These devices, installed on the outer surface of the small spaces, can automatically identify the noise spectrum and implement noise reduction by means of the active noise control (ANC) technology. The testing results indicate that the noise can be reduced 12 dB in the range of 250 Hz~400 Hz for the small closed space while, for the small open space, the best effect of 5.88 dB occurs in the optimal frequency of 450 Hz. These effects will be weakened with the increasing distance away from the source and show the obvious axisymmetric distribution in the inverted cone space. |
| format | Article |
| id | doaj-art-41f580199b01436ea80e72c1ed7eebc3 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-41f580199b01436ea80e72c1ed7eebc32025-08-20T03:55:41ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/62419356241935Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed SpacesChao Wang0Haiyang Gao1Liyao Yu2Tiantian Yu3Wenhui Yan4Qiumeng Xue5Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaKey Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaKey Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaKey Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaKey Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaKey Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaNoise pollution has been given more attention due to its negative impacts on human health and disease. The portable low-frequency noise reduction device we developed in this research can provide an effective way for solving low-frequency noise pollution problem in the small space. This work describes the design principle and the prototype structures for two versions of V1.5 and V2.0 and builds the noise test systems for small spaces, respectively. These devices, installed on the outer surface of the small spaces, can automatically identify the noise spectrum and implement noise reduction by means of the active noise control (ANC) technology. The testing results indicate that the noise can be reduced 12 dB in the range of 250 Hz~400 Hz for the small closed space while, for the small open space, the best effect of 5.88 dB occurs in the optimal frequency of 450 Hz. These effects will be weakened with the increasing distance away from the source and show the obvious axisymmetric distribution in the inverted cone space.http://dx.doi.org/10.1155/2016/6241935 |
| spellingShingle | Chao Wang Haiyang Gao Liyao Yu Tiantian Yu Wenhui Yan Qiumeng Xue Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces Shock and Vibration |
| title | Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces |
| title_full | Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces |
| title_fullStr | Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces |
| title_full_unstemmed | Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces |
| title_short | Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces |
| title_sort | portable low frequency noise reduction device for both small open and closed spaces |
| url | http://dx.doi.org/10.1155/2016/6241935 |
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