SOUND RADIATION REDUCTION BY ENERGY CONVERSION IN COUPLED VIBRATION MODES

Sheng Wei; Ying Li; Yatsze Choy; Yiuyin Raymond Lee

SOUND RADIATION REDUCTION BY ENERGY CONVERSION IN COUPLED VIBRATION MODES

Sheng Wei^*
, Ying Li
, Yatsze Choy
, Yiuyin Raymond Lee

^*Corresponding author for this work

Department of Architecture and Civil Engineering

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

In this paper, a U-shaped frame structure is investigated for sound radiation reduction based on energy conversion in the coupled vibration mode. The proposed frame structure has been well-designed in a way that displays a sway mode to achieve energy conversion. The mode shapes and radiation sound pressure of the proposed frame structure are validated through an analytical method based on Euler-Bernoulli beam theory, mode superposition method and Rayleigh’s integration. There is a good agreement between the results predicted by the finite element method and experimental data. The analytical results indicate that the sway mode shows a lower radiation efficiency compared to that of the first mode of a simply supported beam. Moreover, it also has been found directly that the proposed structure shows a lower sound radiation level compared with the simply supported beam. This research provides a prospective method for noise reduction based on coupled vibration energy conversion without the need for complex design and construction. © International Institute of Acoustics and Vibration (IIAV), 2024

Original language	English
Title of host publication	Proceedings of the 30th International Congress on Sound and Vibration
Editors	Wim van Keulen, Jim Kok
Publisher	International Institute of Acoustics and Vibration
Number of pages	8
ISBN (Print)	9789090390581
Publication status	Published - Jul 2024
Event	30th International Congress on Sound and Vibration (ICSV30) - The Postillion Hotel & Convention Centre Amsterdam, Amsterdam, Netherlands Duration: 8 Jul 2024 → 11 Jul 2024 https://iiav.org/content/archives_icsv_last/2024_icsv30/index.html

Publication series

Name	Proceedings of the International Congress on Sound and Vibration
ISSN (Electronic)	2329-3675

Conference

Conference	30th International Congress on Sound and Vibration (ICSV30)
Place	Netherlands
City	Amsterdam
Period	8/07/24 → 11/07/24
Internet address	https://iiav.org/content/archives_icsv_last/2024_icsv30/index.html

Bibliographical note

Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

Funding

The authors would like to acknowledge the funding from The Hong Kong Polytechnic University and the Research Grants Council of the Hong Kong SAR (PolyU 15207221).

Research Keywords

Energy conversion
Noise reduction
Sway mode

RGC Funding Information

RGC-funded

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https://iiav.org/content/archives_icsv_last/2024_icsv30/content/papers/papers/full_paper_519_20240509073209522.pdf

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Cite this

Wei, S., Li, Y., Choy, Y., & Lee, Y. R. (2024). SOUND RADIATION REDUCTION BY ENERGY CONVERSION IN COUPLED VIBRATION MODES. In W. van Keulen, & J. Kok (Eds.), Proceedings of the 30th International Congress on Sound and Vibration (Proceedings of the International Congress on Sound and Vibration). International Institute of Acoustics and Vibration. https://iiav.org/content/archives_icsv_last/2024_icsv30/content/papers/papers/full_paper_519_20240509073209522.pdf

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abstract = "In this paper, a U-shaped frame structure is investigated for sound radiation reduction based on energy conversion in the coupled vibration mode. The proposed frame structure has been well-designed in a way that displays a sway mode to achieve energy conversion. The mode shapes and radiation sound pressure of the proposed frame structure are validated through an analytical method based on Euler-Bernoulli beam theory, mode superposition method and Rayleigh{\textquoteright}s integration. There is a good agreement between the results predicted by the finite element method and experimental data. The analytical results indicate that the sway mode shows a lower radiation efficiency compared to that of the first mode of a simply supported beam. Moreover, it also has been found directly that the proposed structure shows a lower sound radiation level compared with the simply supported beam. This research provides a prospective method for noise reduction based on coupled vibration energy conversion without the need for complex design and construction. {\textcopyright} International Institute of Acoustics and Vibration (IIAV), 2024",

keywords = "Energy conversion, Noise reduction, Sway mode",

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note = "Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).; 30th International Congress on Sound and Vibration (ICSV30) ; Conference date: 08-07-2024 Through 11-07-2024",

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Wei, S, Li, Y, Choy, Y & Lee, YR 2024, SOUND RADIATION REDUCTION BY ENERGY CONVERSION IN COUPLED VIBRATION MODES. in W van Keulen & J Kok (eds), Proceedings of the 30th International Congress on Sound and Vibration. Proceedings of the International Congress on Sound and Vibration, International Institute of Acoustics and Vibration, 30th International Congress on Sound and Vibration (ICSV30), Amsterdam, Netherlands, 8/07/24. <https://iiav.org/content/archives_icsv_last/2024_icsv30/content/papers/papers/full_paper_519_20240509073209522.pdf>

SOUND RADIATION REDUCTION BY ENERGY CONVERSION IN COUPLED VIBRATION MODES. / Wei, Sheng; Li, Ying; Choy, Yatsze et al.
Proceedings of the 30th International Congress on Sound and Vibration. ed. / Wim van Keulen; Jim Kok. International Institute of Acoustics and Vibration, 2024. (Proceedings of the International Congress on Sound and Vibration).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - SOUND RADIATION REDUCTION BY ENERGY CONVERSION IN COUPLED VIBRATION MODES

AU - Wei, Sheng

AU - Li, Ying

AU - Choy, Yatsze

AU - Lee, Yiuyin Raymond

N1 - Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

PY - 2024/7

Y1 - 2024/7

N2 - In this paper, a U-shaped frame structure is investigated for sound radiation reduction based on energy conversion in the coupled vibration mode. The proposed frame structure has been well-designed in a way that displays a sway mode to achieve energy conversion. The mode shapes and radiation sound pressure of the proposed frame structure are validated through an analytical method based on Euler-Bernoulli beam theory, mode superposition method and Rayleigh’s integration. There is a good agreement between the results predicted by the finite element method and experimental data. The analytical results indicate that the sway mode shows a lower radiation efficiency compared to that of the first mode of a simply supported beam. Moreover, it also has been found directly that the proposed structure shows a lower sound radiation level compared with the simply supported beam. This research provides a prospective method for noise reduction based on coupled vibration energy conversion without the need for complex design and construction. © International Institute of Acoustics and Vibration (IIAV), 2024

AB - In this paper, a U-shaped frame structure is investigated for sound radiation reduction based on energy conversion in the coupled vibration mode. The proposed frame structure has been well-designed in a way that displays a sway mode to achieve energy conversion. The mode shapes and radiation sound pressure of the proposed frame structure are validated through an analytical method based on Euler-Bernoulli beam theory, mode superposition method and Rayleigh’s integration. There is a good agreement between the results predicted by the finite element method and experimental data. The analytical results indicate that the sway mode shows a lower radiation efficiency compared to that of the first mode of a simply supported beam. Moreover, it also has been found directly that the proposed structure shows a lower sound radiation level compared with the simply supported beam. This research provides a prospective method for noise reduction based on coupled vibration energy conversion without the need for complex design and construction. © International Institute of Acoustics and Vibration (IIAV), 2024

KW - Energy conversion

KW - Noise reduction

KW - Sway mode

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M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9789090390581

T3 - Proceedings of the International Congress on Sound and Vibration

BT - Proceedings of the 30th International Congress on Sound and Vibration

A2 - van Keulen, Wim

A2 - Kok, Jim

PB - International Institute of Acoustics and Vibration

T2 - 30th International Congress on Sound and Vibration (ICSV30)

Y2 - 8 July 2024 through 11 July 2024

ER -

SOUND RADIATION REDUCTION BY ENERGY CONVERSION IN COUPLED VIBRATION MODES

Abstract

Publication series

Conference

Bibliographical note

Funding

Research Keywords

RGC Funding Information

Access Output

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