Two-dimensional acoustic analysis by concentrated mass model

Satoshi Ishikawa, Shinya Kijimoto, Yosuke Koba, Ryoma Owaki, Yuuki Mori

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

FDTD method and CIP method are used for an acoustic analysis in time domain. However, these methods do not take into account a sound attenuation from viscosity. In our study, we propose a concentrated mass model which consists of spring-mass-damper system to perform a two-dimensional acoustic analysis. The dampers of this model consider viscosity of air. In this paper, we derive mass, connecting springs, connecting dampers, and base support dampers. The characteristic of the connecting spring is derived from the condition of adiabatic change of air, and the connecting damper is derived from the normal stress. To confirm the validity of the proposed model, the numerical results obtained by the concentrated mass model are compared with the theoretical value of the traveling wave, and with the theoretical value of the natural frequency. All numerical computational results agree very well with the theoretical values. Therefore, it is concluded that the proposed model is valid for the two-dimensional acoustic analysis.

Original languageEnglish
Title of host publication42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013
Subtitle of host publicationNoise Control for Quality of Life
PublisherOAL-Osterreichischer Arbeitsring fur Larmbekampfung
Pages3319-3326
Number of pages8
ISBN (Print)9781632662675
Publication statusPublished - Jan 1 2013
Event42nd International Congress and Exposition on Noise Control Engineering 2013: Noise Control for Quality of Life, INTER-NOISE 2013 - Innsbruck, Austria
Duration: Sep 15 2013Sep 18 2013

Publication series

Name42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life
Volume4

Other

Other42nd International Congress and Exposition on Noise Control Engineering 2013: Noise Control for Quality of Life, INTER-NOISE 2013
CountryAustria
CityInnsbruck
Period9/15/139/18/13

Fingerprint

dampers
acoustics
viscosity
air
finite difference time domain method
traveling waves
resonant frequencies
attenuation

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Ishikawa, S., Kijimoto, S., Koba, Y., Owaki, R., & Mori, Y. (2013). Two-dimensional acoustic analysis by concentrated mass model. In 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life (pp. 3319-3326). (42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life; Vol. 4). OAL-Osterreichischer Arbeitsring fur Larmbekampfung.

Two-dimensional acoustic analysis by concentrated mass model. / Ishikawa, Satoshi; Kijimoto, Shinya; Koba, Yosuke; Owaki, Ryoma; Mori, Yuuki.

42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life. OAL-Osterreichischer Arbeitsring fur Larmbekampfung, 2013. p. 3319-3326 (42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life; Vol. 4).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ishikawa, S, Kijimoto, S, Koba, Y, Owaki, R & Mori, Y 2013, Two-dimensional acoustic analysis by concentrated mass model. in 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life. 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life, vol. 4, OAL-Osterreichischer Arbeitsring fur Larmbekampfung, pp. 3319-3326, 42nd International Congress and Exposition on Noise Control Engineering 2013: Noise Control for Quality of Life, INTER-NOISE 2013, Innsbruck, Austria, 9/15/13.
Ishikawa S, Kijimoto S, Koba Y, Owaki R, Mori Y. Two-dimensional acoustic analysis by concentrated mass model. In 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life. OAL-Osterreichischer Arbeitsring fur Larmbekampfung. 2013. p. 3319-3326. (42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life).
Ishikawa, Satoshi ; Kijimoto, Shinya ; Koba, Yosuke ; Owaki, Ryoma ; Mori, Yuuki. / Two-dimensional acoustic analysis by concentrated mass model. 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life. OAL-Osterreichischer Arbeitsring fur Larmbekampfung, 2013. pp. 3319-3326 (42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life).
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