On An Application Of Complex Damping Coefficients

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Report Number: WL-TR-91-3078 Volume I, p. DCC-1 thru DCC-19
Author(s): Tong, M., Liang, Z., Lee, G. C.
Corporate Author(s): State University of New York at Buffalo
Laboratory: Wright Laboratory
Date of Publication: 1991-08
Pages: 19
Contract: Laboratory Research - No Contract
DoD Project: 2401
DoD Task: 240104
Identifier: This paper is part of a conference proceedings. See ADA241311

Abstract:
Complex damping theory is a useful tool in analysis of energy transformations among modes of a vibration system. Based on this theory, there are many applications and improvements in the areas of system identification, vibration control and damper optimization design. This paper presents an application of the theory in regard to finite element model corrections. First, a common shortfall of usual correction procedures is analyzed. In order to deal with this problem, a correct correspondence rule is then proposed. With the help of complex damping coefficients, improvements to certain correction procedures are discussed.

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