Free vibration analysis of circular membrane backed by cylinder cavity using mode coupling approach

Amogh, R N and Mahanta, T K and B, Venkatesham (2017) Free vibration analysis of circular membrane backed by cylinder cavity using mode coupling approach. In: ICOVP, 13th International Conference on Vibration Problems, 29th November-2nd December, IIT Guwahati.

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Abstract

Circular membrane backed by cylinder cavity configuration has come across in various acoustic applications such as musical instruments, sensors and loudspeaker design. The Vibration Characteristics of membrane are influenced by the presence of acoustic cavity, and this interaction is named as structural- acoustic coupling. The coupled natural frequencies of the membrane are predicted using Mode Coupling approach. In this approach, the coupled system behaviour is expressed in terms of the finite number of uncoupled sub-system modes. Acoustic impedances of cavity and structural mobility of membrane are arranged in a matrix form. The matrix representation helps to do efficient computations. It also helps to find modes participation in coupling. The predicted results are corroborated with numerical results

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IITH Creators:
IITH CreatorsORCiD
B, Venkateshamhttp://orcid.org/0000-0003-3651-513X
Item Type: Conference or Workshop Item (Paper)
Subjects: Others > Mechanics
Divisions: Department of Mechanical & Aerospace Engineering
Depositing User: Team Library
Date Deposited: 11 Oct 2018 10:58
Last Modified: 11 Oct 2018 10:58
URI: http://raiith.iith.ac.in/id/eprint/4487
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