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Title
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Correlation of Experimental Results With Predictions of Viscoelastic Damping for a Model Structure
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Description
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Viscoelastic dampers as supplementary damping devices have been applied to building structures under wind loads. More recently, analytical and experimental results have shown that, when properly designed, they can also be effective against earthquake and other environmental forces. One of the challenging areas in research and implementation of viscoelastic dampers is to evaluate the damping effect of the dampers on structures. In this paper, the modal strain energy method in conjunction with the finite element method is used to evaluate the damping ratio of a 1/2.5 scaled steel frame building with viscoelastic dampers installed. Computed damping ratios are found to be in very good agreement with the experimental results.
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Creator
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Soong, T. T.
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Lai, M. L.
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Publisher
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Wright-Patterson Air Force Base, OH : Wright Laboratory, Flight Dynamics Directorate, 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 (9 pages) : ill.
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Type
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article
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Abstract
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Viscoelastic dampers as supplementary damping devices have been applied to building structures under wind loads. More recently, analytical and experimental results have shown that, when properly designed, they can also be effective against earthquake and other environmental forces. One of the challenging areas in research and implementation of viscoelastic dampers is to evaluate the damping effect of the dampers on structures. In this paper, the modal strain energy method in conjunction with the finite element method is used to evaluate the damping ratio of a 1/2.5 scaled steel frame building with viscoelastic dampers installed. Computed damping ratios are found to be in very good agreement with the experimental results.
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Date Issued
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1991-08
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Extent
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9
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Corporate Author
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State University of New York at Buffalo
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The 3M Company
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Report Number
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WL-TR-91-3078 Volume II, pages FCB-1 to FCB-9
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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
