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Title
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Modeling of Constrained Layer Damping in Trusses
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Description
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This work reexamines the use of constrained layer damping for controlling the lower modes of vibration of a large flexible truss. The device used to suppress vibrations is a "viscoelastic strut". The design, modeling and experimental verification of the viscoelastic strut as well as the three longeron truss with and without the constrained layer treatment is presented. A complete finite element analysis (FEA) and experimental verification will be presented. The experimental results are represented by examining transfer functions and modal damping ratios as well as a video presentation of the effectiveness of the viscoelastic approach for vibration suppression.
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Creator
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Slater, Joseph C.
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Inman, Daniel J.
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Belvin, W. Keith
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Publisher
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Wright-Patterson Air Force Base, OH : Wright Laboratory, Flight Dynamics Laboratory, Air Force Systems Command
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Date
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1991
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Format
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1 online resource (8 pages) : ill.
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Type
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article
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Abstract
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This work reexamines the use of constrained layer damping for controlling the lower modes of vibration of a large flexible truss. The device used to suppress vibrations is a "viscoelastic strut". The design, modeling and experimental verification of the viscoelastic strut as well as the three longeron truss with and without the constrained layer treatment is presented. A complete finite element analysis (FEA) and experimental verification will be presented. The experimental results are represented by examining transfer functions and modal damping ratios as well as a video presentation of the effectiveness of the viscoelastic approach for vibration suppression.
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Date Issued
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1991-08
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Extent
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8
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Corporate Author
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State University of New York at Buffalo
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Laboratory
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Wright Laboratory
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Report Number
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WL-TR-91-3078 Volume II, pages ECC-1 to ECC-8
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DoD Project
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2401
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DoD Task
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240104
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Distribution Conflict
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No
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Index Abstract
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Contrails only
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Photo Quality
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Not Needed
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Distribution Classification
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1
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Report Availability
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Full text available
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Provenance
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University of Colorado Colorado Springs, Kraemer Family Library
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Identifier
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ADA241312
