Date of Award
Spring 1992
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Mechanical & Aerospace Engineering
Program/Concentration
Engineering Mechanics
Committee Director
U. S. Shirahatti
Committee Member
C. Mei
Committee Member
G. Hou
Call Number for Print
Special Collections; LD4331.E57B65
Abstract
In many practical situations we encounter sound-structure interaction between the fluid in a cavity and the flexible wall on the boundary. The aircraft cabin interacting with its fuselage and double-leaf partition walls interacting with the enclosed cavity are some of the typical examples. The vibratory behavior of the structure and the acoustical pressure inside the cavity are affected by this interaction.
In most of the cases, the governing differential equations for the coupled system can be shown to involve gyroscopic coupling. A special method has been applied to decouple the equations in terms of pairs of generalized coordinates and the modal parameters of the coupled system have been determined in terms of the modal properties of the non-interacting individual systems. Closed form solutions have also been derived to predict the undamped system response. Results have been presented for a rectangular cavity which has a flexible panel on one of its faces. The predicted results compare well with the experimental data reported by previous researchers.
Rights
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DOI
10.25777/1aa0-fb58
Recommended Citation
Bokil, Vijay B..
"Modal Analysis of Gyroscopically Coupled Sound-Structure Interaction Problems"
(1992). Master of Science (MS), Thesis, Mechanical & Aerospace Engineering, Old Dominion University, DOI: 10.25777/1aa0-fb58
https://digitalcommons.odu.edu/mae_etds/437