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Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces
Joint Authors
Wang, Chao
Gao, Haiyang
Yu, Liyao
Yu, Tiantian
Yan, Wenhui
Xue, Qiumeng
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-01-10
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Wang, Chao& Gao, Haiyang& Yu, Liyao& Yu, Tiantian& Yan, Wenhui& Xue, Qiumeng. 2016. Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces. Shock and Vibration،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1119464
Modern Language Association (MLA)
Wang, Chao…[et al.]. Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces. Shock and Vibration No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1119464
American Medical Association (AMA)
Wang, Chao& Gao, Haiyang& Yu, Liyao& Yu, Tiantian& Yan, Wenhui& Xue, Qiumeng. Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1119464
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119464