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Accession Number ADA570547
Title Estimating the Effects of Damping Treatments on the Vibration of Complex Structures.
Publication Date Sep 2012
Media Count 62p
Personal Author H. Ozturk J. G. McDaniel K. Bridgeo
Abstract Damping treatments are used in most Naval platforms to reduce noise and vibration, and are therefore critical to structural acoustic performance. However, the complexity of naval structures often limits one's ability to accurately estimate the structural acoustic performance of a given damping treatment. As a result, some damping treatments represent a significant cost without a significant benefit. Costs include initial material and labor as well as routine maintenance that involves the replacement of treatments due to inspection of the underlying structure (see MIL-STD-2148). The importance of this research lies in the possibility of identifying which damping treatments may be permanently removed or never installed without sacrificing substantial performance, thus significantly reducing the cost of naval platforms. The research has achieved this by developing a set of processing techniques for experimental data and structural acoustic models.
Keywords Acoustics
Compliance transfer function
Mobility transfer
Modal analysis
Naval equipment
Naval platforms
Numerical analysis
Ritz method
Spatial distribution
Structural properties
Technology transfer
Thermal imaging

Source Agency Non Paid ADAS
NTIS Subject Category 46E - Structural Mechanics
Corporate Author Boston Univ., MA. Dept. of Mechanical Engineering.
Document Type Technical report
Title Note Final rept. 7 Feb 2008 - 30 Apr 2012.
NTIS Issue Number 1315
Contract Number N00014-08-1-0531

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