Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer)

Shuichi Sakamoto; Yuichi Toyoshima; Nobuaki Murayama; Toru Miyairi; Akira Hoshino; Takatsune Narumi

doi:doi:10.11648/j.ijmea.20140201.14

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Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer)

Shuichi Sakamoto, Yuichi Toyoshima, Nobuaki Murayama, Toru Miyairi, Akira Hoshino, Takatsune Narumi

Published in International Journal of Mechanical Engineering and Applications (Volume 2, Issue 1)

Received: 23 February 2014 Published: 20 March 2014

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Abstract

This paper reports a natural ventilation silencer for an animal cage having considerable sound insertion loss. Many veterinary hospitals face a serious problem that hospitalized animals are stressed from the barks of other dogs in the hospital. To address this problem, a solution that barely affects caged dogs’ health is required. First, we estimated aperture ratio of the silencer device which was considered by physiological sustainability of dog. Next, we attempted to use a silencer with sound insertion loss by attaching it to an opening side of the cage. We constructed the tested prototype silencers by using the resonance of a rectangular room and a nonwoven fabric. We measured the acoustic characteristics of the silencers that were attached to the real scale model of the animal cage. We also measured their insertion loss by considering the estimated frequency characteristics of the dogs’ barking sound. The result shows that proposed silencers have more than 10 dB insertion loss; therefore, they can maintain respiratory environment of a caged dogs along with good visibility.

Published in	International Journal of Mechanical Engineering and Applications (Volume 2, Issue 1)
DOI	10.11648/j.ijmea.20140201.14
Page(s)	18-24
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Noise Control, Sound Insertion Loss, Resonance of Rectangular Room, Cell-type Silencer, Nonwoven Fabric

References

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[2]	Ministry of environment (Japan), The 3rd investigative committee of the state of protection management of animal (Document 2 Occurrence situations of harms and troublesome problems), Government of Japan, 2004, pp. 19-21. http://www.env.go.jp/nature/dobutsu/aigo/2_data/arikata/h16_03/mat03.pdf
[3]	"Air-conditioning / Sanitary Engineering Handbook" Vol.1, Edited and published by Society of Heating, Air-Conditioning and Sanitary Engineers of Japan, 1963, pp. 320-321, NCID: BA53189532.
[4]	Society of researches for textbook of environment engineering, "Textbook of Environment Engineering", Shokokusha publishing co., ltd., 2000, pp. 134-143, ISBN: 4395005160.
[5]	M. Tsuboi, "Dog Anatomy and Table for Physiological Calculation", Bunkyo-shoin, 1971, p.195, NCID: BN06961627.
[6]	T. Tsuda,."Domestic Animal Physiology", Yokendo, 2004, p. 133, NCID: BA66764054.
[7]	M. Miura, "Architectural Environment Engineering", Morikita Publishing Co., Ltd., 2006, pp. 285-286, ISBN: 9784627581111.
[8]	U. Inoue, "Duct Calculation Handbook", Kurimoto, Ltd., 1962, pp. 121-122, NCID: BN11470089.
[9]	S. Sakamoto, T. Miyairi, A. Hoshino, I. Kourakata, T. Sato, "Attenuation characteristics of double orifice silencer jointed by permeable membrane (measurement and theoretical analysis of sound transmission loss)", Transactions of the Japan society of Mechanical Engineers, Series C, Vol. 79, No. 806, 2013, pp. 3474-3486.
[10]	Z. Maekawa, M. Morimoto, K. Sakagami, "Architectual･Environmental Acoustics 2nd edition", Kyoritsu publishing CO., LTD., 2000, pp. 80-81.
[11]	R. H. Bolt, S. Labate, U. Ingård, "The acoustic reactance of small circular orifices", J. Acoust. Soc. Am. Vol. 21, No. 2, 1949, pp. 94-97.
[12]	H. Sasao, "A guide to acoustic analysis by Excel - Analysis of an acoustic structural characteristic - (4) Analysis of the duct system silencer by Excel", Journal of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan, Vol. 81, No. 1, 2007, pp. 51-58.

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APA Style

Shuichi Sakamoto, Yuichi Toyoshima, Nobuaki Murayama, Toru Miyairi, Akira Hoshino, et al. (2014). Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer). International Journal of Mechanical Engineering and Applications, 2(1), 18-24. https://doi.org/10.11648/j.ijmea.20140201.14

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ACS Style

Shuichi Sakamoto; Yuichi Toyoshima; Nobuaki Murayama; Toru Miyairi; Akira Hoshino, et al. Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer). Int. J. Mech. Eng. Appl. 2014, 2(1), 18-24. doi: 10.11648/j.ijmea.20140201.14

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AMA Style

Shuichi Sakamoto, Yuichi Toyoshima, Nobuaki Murayama, Toru Miyairi, Akira Hoshino, et al. Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer). Int J Mech Eng Appl. 2014;2(1):18-24. doi: 10.11648/j.ijmea.20140201.14

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@article{10.11648/j.ijmea.20140201.14,
  author = {Shuichi Sakamoto and Yuichi Toyoshima and Nobuaki Murayama and Toru Miyairi and Akira Hoshino and Takatsune Narumi},
  title = {Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer)},
  journal = {International Journal of Mechanical Engineering and Applications},
  volume = {2},
  number = {1},
  pages = {18-24},
  doi = {10.11648/j.ijmea.20140201.14},
  url = {https://doi.org/10.11648/j.ijmea.20140201.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20140201.14},
  abstract = {This paper reports a natural ventilation silencer for an animal cage having considerable sound insertion loss. Many veterinary hospitals face a serious problem that hospitalized animals are stressed from the barks of other dogs in the hospital. To address this problem, a solution that barely affects caged dogs’ health is required. First, we estimated aperture ratio of the silencer device which was considered by physiological sustainability of dog. Next, we attempted to use a silencer with sound insertion loss by attaching it to an opening side of the cage. We constructed the tested prototype silencers by using the resonance of a rectangular room and a nonwoven fabric. We measured the acoustic characteristics of the silencers that were attached to the real scale model of the animal cage. We also measured their insertion loss by considering the estimated frequency characteristics of the dogs’ barking sound. The result shows that proposed silencers have more than 10 dB insertion loss; therefore, they can maintain respiratory environment of a caged dogs along with good visibility.},
 year = {2014}
}

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TY  - JOUR
T1  - Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer)
AU  - Shuichi Sakamoto
AU  - Yuichi Toyoshima
AU  - Nobuaki Murayama
AU  - Toru Miyairi
AU  - Akira Hoshino
AU  - Takatsune Narumi
Y1  - 2014/03/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ijmea.20140201.14
DO  - 10.11648/j.ijmea.20140201.14
T2  - International Journal of Mechanical Engineering and Applications
JF  - International Journal of Mechanical Engineering and Applications
JO  - International Journal of Mechanical Engineering and Applications
SP  - 18
EP  - 24
PB  - Science Publishing Group
SN  - 2330-0248
UR  - https://doi.org/10.11648/j.ijmea.20140201.14
AB  - This paper reports a natural ventilation silencer for an animal cage having considerable sound insertion loss. Many veterinary hospitals face a serious problem that hospitalized animals are stressed from the barks of other dogs in the hospital. To address this problem, a solution that barely affects caged dogs’ health is required. First, we estimated aperture ratio of the silencer device which was considered by physiological sustainability of dog. Next, we attempted to use a silencer with sound insertion loss by attaching it to an opening side of the cage. We constructed the tested prototype silencers by using the resonance of a rectangular room and a nonwoven fabric. We measured the acoustic characteristics of the silencers that were attached to the real scale model of the animal cage. We also measured their insertion loss by considering the estimated frequency characteristics of the dogs’ barking sound. The result shows that proposed silencers have more than 10 dB insertion loss; therefore, they can maintain respiratory environment of a caged dogs along with good visibility.
VL  - 2
IS  - 1
ER  -

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Author Information

Shuichi Sakamoto

Faculty of Engineering, Niigata University, Niigata, Japan
Yuichi Toyoshima

Graduate School of Science and Technology, Niigata University, Niigata, Japan
Nobuaki Murayama

Graduate School of Science and Technology, Niigata University, Niigata, Japan
Toru Miyairi

Graduate School of Science and Technology, Niigata University, Niigata, Japan
Akira Hoshino

Graduate School of Science and Technology, Niigata University, Niigata, Japan
Takatsune Narumi

Faculty of Engineering, Niigata University, Niigata, Japan

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Plain Text BibTeX RIS

APA Style

Shuichi Sakamoto, Yuichi Toyoshima, Nobuaki Murayama, Toru Miyairi, Akira Hoshino, et al. (2014). Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer). International Journal of Mechanical Engineering and Applications, 2(1), 18-24. https://doi.org/10.11648/j.ijmea.20140201.14

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ACS Style

Shuichi Sakamoto; Yuichi Toyoshima; Nobuaki Murayama; Toru Miyairi; Akira Hoshino, et al. Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer). Int. J. Mech. Eng. Appl. 2014, 2(1), 18-24. doi: 10.11648/j.ijmea.20140201.14

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AMA Style

Shuichi Sakamoto, Yuichi Toyoshima, Nobuaki Murayama, Toru Miyairi, Akira Hoshino, et al. Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer). Int J Mech Eng Appl. 2014;2(1):18-24. doi: 10.11648/j.ijmea.20140201.14

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@article{10.11648/j.ijmea.20140201.14,
  author = {Shuichi Sakamoto and Yuichi Toyoshima and Nobuaki Murayama and Toru Miyairi and Akira Hoshino and Takatsune Narumi},
  title = {Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer)},
  journal = {International Journal of Mechanical Engineering and Applications},
  volume = {2},
  number = {1},
  pages = {18-24},
  doi = {10.11648/j.ijmea.20140201.14},
  url = {https://doi.org/10.11648/j.ijmea.20140201.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20140201.14},
  abstract = {This paper reports a natural ventilation silencer for an animal cage having considerable sound insertion loss. Many veterinary hospitals face a serious problem that hospitalized animals are stressed from the barks of other dogs in the hospital. To address this problem, a solution that barely affects caged dogs’ health is required. First, we estimated aperture ratio of the silencer device which was considered by physiological sustainability of dog. Next, we attempted to use a silencer with sound insertion loss by attaching it to an opening side of the cage. We constructed the tested prototype silencers by using the resonance of a rectangular room and a nonwoven fabric. We measured the acoustic characteristics of the silencers that were attached to the real scale model of the animal cage. We also measured their insertion loss by considering the estimated frequency characteristics of the dogs’ barking sound. The result shows that proposed silencers have more than 10 dB insertion loss; therefore, they can maintain respiratory environment of a caged dogs along with good visibility.},
 year = {2014}
}

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TY  - JOUR
T1  - Sound Attenuation Devices for Dogs Barking (Estimation of Aperture Ratio and Experimental Study of Silencer)
AU  - Shuichi Sakamoto
AU  - Yuichi Toyoshima
AU  - Nobuaki Murayama
AU  - Toru Miyairi
AU  - Akira Hoshino
AU  - Takatsune Narumi
Y1  - 2014/03/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ijmea.20140201.14
DO  - 10.11648/j.ijmea.20140201.14
T2  - International Journal of Mechanical Engineering and Applications
JF  - International Journal of Mechanical Engineering and Applications
JO  - International Journal of Mechanical Engineering and Applications
SP  - 18
EP  - 24
PB  - Science Publishing Group
SN  - 2330-0248
UR  - https://doi.org/10.11648/j.ijmea.20140201.14
AB  - This paper reports a natural ventilation silencer for an animal cage having considerable sound insertion loss. Many veterinary hospitals face a serious problem that hospitalized animals are stressed from the barks of other dogs in the hospital. To address this problem, a solution that barely affects caged dogs’ health is required. First, we estimated aperture ratio of the silencer device which was considered by physiological sustainability of dog. Next, we attempted to use a silencer with sound insertion loss by attaching it to an opening side of the cage. We constructed the tested prototype silencers by using the resonance of a rectangular room and a nonwoven fabric. We measured the acoustic characteristics of the silencers that were attached to the real scale model of the animal cage. We also measured their insertion loss by considering the estimated frequency characteristics of the dogs’ barking sound. The result shows that proposed silencers have more than 10 dB insertion loss; therefore, they can maintain respiratory environment of a caged dogs along with good visibility.
VL  - 2
IS  - 1
ER  -

Copy | Download