Control of structure-borne sound using periodically varying rigidity

Muhammad A. Hawwa; Ali H. Nayfeh

doi:10.1115/DETC1995-0419

Control of structure-borne sound using periodically varying rigidity

Muhammad A. Hawwa
, Ali H. Nayfeh

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Subsonic modes may cause significant radiation when they scatter at a discontinuity. In this study, we suggest an approach to filter out subsonic waves before they reach the discontinuities on the structure. This is done by imposing a material (parametric) periodicity in a fluid-loaded structure, which leads to a strong stopband interaction under a Bragg condition. The interaction is analytically described by the coupled-mode equations, derived using the method of multiple scales. Numerical illustrations are given in terms of the transmission loss for different fluidloaded plates. The results can be utilized to suppress the undesired acoustic radiation generated by fluidloaded structures.

Original language	English
Title of host publication	15th Biennial Conference on Mechanical Vibration and Noise - Acoustics, Vibrations, and Rotating Machines
Publisher	American Society of Mechanical Engineers (ASME)
Pages	307-314
Number of pages	8
ISBN (Electronic)	9780791897652
DOIs	https://doi.org/10.1115/DETC1995-0419
State	Published - 1995
Externally published	Yes

Publication series

Name	Proceedings of the ASME Design Engineering Technical Conference
Volume	3B-1995

Bibliographical note

Publisher Copyright:
© 1995 American Society of Mechanical Engineers (ASME). All rights reserved.

ASJC Scopus subject areas

Mechanical Engineering
Computer Graphics and Computer-Aided Design
Computer Science Applications
Modeling and Simulation

Access to Document

10.1115/DETC1995-0419

Cite this

Hawwa, M. A., & Nayfeh, A. H. (1995). Control of structure-borne sound using periodically varying rigidity. In 15th Biennial Conference on Mechanical Vibration and Noise - Acoustics, Vibrations, and Rotating Machines (pp. 307-314). (Proceedings of the ASME Design Engineering Technical Conference; Vol. 3B-1995). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/DETC1995-0419

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title = "Control of structure-borne sound using periodically varying rigidity",

abstract = "Subsonic modes may cause significant radiation when they scatter at a discontinuity. In this study, we suggest an approach to filter out subsonic waves before they reach the discontinuities on the structure. This is done by imposing a material (parametric) periodicity in a fluid-loaded structure, which leads to a strong stopband interaction under a Bragg condition. The interaction is analytically described by the coupled-mode equations, derived using the method of multiple scales. Numerical illustrations are given in terms of the transmission loss for different fluidloaded plates. The results can be utilized to suppress the undesired acoustic radiation generated by fluidloaded structures.",

author = "Hawwa, \{Muhammad A.\} and Nayfeh, \{Ali H.\}",

year = "1995",

doi = "10.1115/DETC1995-0419",

language = "English",

series = "Proceedings of the ASME Design Engineering Technical Conference",

publisher = "American Society of Mechanical Engineers (ASME)",

pages = "307--314",

booktitle = "15th Biennial Conference on Mechanical Vibration and Noise - Acoustics, Vibrations, and Rotating Machines",

}

Hawwa, MA & Nayfeh, AH 1995, Control of structure-borne sound using periodically varying rigidity. in 15th Biennial Conference on Mechanical Vibration and Noise - Acoustics, Vibrations, and Rotating Machines. Proceedings of the ASME Design Engineering Technical Conference, vol. 3B-1995, American Society of Mechanical Engineers (ASME), pp. 307-314. https://doi.org/10.1115/DETC1995-0419

Control of structure-borne sound using periodically varying rigidity. / Hawwa, Muhammad A.; Nayfeh, Ali H.
15th Biennial Conference on Mechanical Vibration and Noise - Acoustics, Vibrations, and Rotating Machines. American Society of Mechanical Engineers (ASME), 1995. p. 307-314 (Proceedings of the ASME Design Engineering Technical Conference; Vol. 3B-1995).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

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AU - Hawwa, Muhammad A.

AU - Nayfeh, Ali H.

PY - 1995

Y1 - 1995

N2 - Subsonic modes may cause significant radiation when they scatter at a discontinuity. In this study, we suggest an approach to filter out subsonic waves before they reach the discontinuities on the structure. This is done by imposing a material (parametric) periodicity in a fluid-loaded structure, which leads to a strong stopband interaction under a Bragg condition. The interaction is analytically described by the coupled-mode equations, derived using the method of multiple scales. Numerical illustrations are given in terms of the transmission loss for different fluidloaded plates. The results can be utilized to suppress the undesired acoustic radiation generated by fluidloaded structures.

AB - Subsonic modes may cause significant radiation when they scatter at a discontinuity. In this study, we suggest an approach to filter out subsonic waves before they reach the discontinuities on the structure. This is done by imposing a material (parametric) periodicity in a fluid-loaded structure, which leads to a strong stopband interaction under a Bragg condition. The interaction is analytically described by the coupled-mode equations, derived using the method of multiple scales. Numerical illustrations are given in terms of the transmission loss for different fluidloaded plates. The results can be utilized to suppress the undesired acoustic radiation generated by fluidloaded structures.

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T3 - Proceedings of the ASME Design Engineering Technical Conference

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BT - 15th Biennial Conference on Mechanical Vibration and Noise - Acoustics, Vibrations, and Rotating Machines

PB - American Society of Mechanical Engineers (ASME)

ER -

Control of structure-borne sound using periodically varying rigidity

Abstract

Publication series

Bibliographical note

ASJC Scopus subject areas

Access to Document

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Cite this