Identification of structural parameters in mistuned bladed disks

Marc Mignolet, Chung Chih Lin

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

The present investigation focused on the estimation of the parameters of a structural model to represent “at best” a set of measurements of the steady state response of a mistuned bladed disk. The applicability of the least squares and maximum likelihood approaches to the identification of the bladed disk model from this data is first investigated. The advantages and drawbacks of these techniques motivate the introduction of a new mixed least squares-maximum likelihood formulation which is shown to recover well the true model parameters from noisy simulated response data.

Original languageEnglish (US)
Pages (from-to)428-438
Number of pages11
JournalJournal of Vibration and Acoustics, Transactions of the ASME
Volume119
Issue number3
DOIs
StatePublished - Jul 1997

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ASJC Scopus subject areas

  • Acoustics and Ultrasonics
  • Mechanics of Materials
  • Mechanical Engineering

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