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On identification of structures with internal resonances (1992)

Pappa, R. S. ; Balachandran, B. ; Nayfeh, A. H. ; [et al.]

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Publication Date: 2019-06-28

Description: Identification of structures which exhibit modal interactions is considered, and the difficulties experienced due to these interactions are examined. Free oscillations of quadratically and cubically coupled pairs of oscillators are analytically studied to illustrate nonlinear interactions between structural modes involved in two-to-one and one-to-one frequency relationships. In light of this study, results obtained from application of the eigensystem realization algorithm toward identification of a beam-mass structure with a two-to-one frequency relationship and quadratic coupling are presented and discussed.

Keywords: STRUCTURAL MECHANICS

Type: AIAA PAPER 92-0491

Format: text

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