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Reconcilation of calculated and measured natural frequencies and normal modes

✍ Scribed by R.D. Milne; A. Simpson

Publisher: Elsevier Science
Year: 1973
Tongue: English
Weight: 968 KB
Volume: 30
Category: Article
ISSN: 0022-460X
DOI: 10.1016/s0022-460x(73)80049-5

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✦ Synopsis

Methods of "reconciliation" of vibration modes calculated by the branch-mode technique and corresponding modes measured via resonance testing procedures are presented. These methods involve the adjustment of stiffness and mass parameters in such a manner as to minimize certain norm functions. Sensitivity analysis is invoked in order to facilitateadditional specific adjustments of frequency and modal values. The procedures are exemplified by specimen problems based on matrices of small order.

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