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Power flow analysis of two coupled plates with arbitrary characteristicsIn the last progress report (Feb. 1988) some results were presented for a parametric analysis on the vibrational power flow between two coupled plate structures using the mobility power flow approach. The results reported then were for changes in the structural parameters of the two plates, but with the two plates identical in their structural characteristics. Herein, limitation is removed. The vibrational power input and output are evaluated for different values of the structural damping loss factor for the source and receiver plates. In performing this parametric analysis, the source plate characteristics are kept constant. The purpose of this parametric analysis is to determine the most critical parameters that influence the flow of vibrational power from the source plate to the receiver plate. In the case of the structural damping parametric analysis, the influence of changes in the source plate damping is also investigated. The results obtained from the mobility power flow approach are compared to results obtained using a statistical energy analysis (SEA) approach. The significance of the power flow results are discussed together with a discussion and a comparison between the SEA results and the mobility power flow results. Furthermore, the benefits derived from using the mobility power flow approach are examined.
Document ID
19900017316
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Cuschieri, J. M. (Florida Atlantic Univ. Boca Raton, FL, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1990
Subject Category
Acoustics
Report/Patent Number
NAS 1.26:182033
NASA-CR-182033
Accession Number
90N26632
Funding Number(s)
CONTRACT_GRANT: NAG1-685
PROJECT: RTOP 535-03-11-03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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