Title: Perturbation analysis of vibration modes with close frequencies
Abstract: Abstract This paper focuses on how parameter changes in a vibration system expressed by a discrete eigenvalue problem affect vibration modes in the special case of closely spaced eigenvalues, i.e. ‘eigenvalue clusters’. For this class of problems, a perturbation analysis is developed that can be used to compute changes in eigenvalues and eigenvectors in response to small parameter changes. The analysis is applied to a 6‐degree‐of‐freedom spring‐mass system containing a single pair of closely spaced eigenvalues.
Publication Year: 1993
Publication Date: 1993-05-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 21
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