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Title
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A Strong Criterion For Testing Proportionally Damped Systems
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Description
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To check whether a structural system is proportionally damped in dynamic analysis, Caughey advanced criterion to examine if the generalized damping and stiffness matrices of the system commute. This criterion depends on the data of generalized damping which are not directly measurable. This is a sever restriction. In this paper, we present an alternative criterion to determine the proportionality of damping which is rigorous and dynamically flexible. In particular, it can be used in both forward and inverse problems.
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Creator
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Liang, Z.
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Tong, M.
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Lee, G. C.
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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 (18 pages) : ill.
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Type
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article
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Abstract
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To check whether a structural system is proportionally damped in dynamic analysis, Caughey advanced criterion to examine if the generalized damping and stiffness matrices of the system commute. This criterion depends on the data of generalized damping which are not directly measurable. This is a sever restriction. In this paper, we present an alternative criterion to determine the proportionality of damping which is rigorous and dynamically flexible. In particular, it can be used in both forward and inverse problems.
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Date Issued
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1991-08
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Extent
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18
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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 ECD-1 to ECD-18
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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
