Vibratory parameters of blades from coordinate measurement machine data

Alok Sinha, Benjamin Hall, Brice Cassenti, Gary Hilbert

Research output: Contribution to journalArticlepeer-review

62 Scopus citations


This paper deals with the development of a procedure to model geometric variations of blades. Specifically, vibratory parameters of blades are extracted from coordinate measurement machine (CMM) data on an integrally bladed rotor (IBR). The method is based on a proper orthogonal decomposition of CMM data, solid modeling, and finite element techniques. In addition to obtaining natural frequencies and mode shapes of each blade on an IBR, statistics of these modal parameters are also computed and characterized. Numerical results are validated by comparison with experimental results.

Original languageEnglish (US)
Article number011013
JournalJournal of Turbomachinery
Issue number1
StatePublished - Jan 2008

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering


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