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Optical Engineering

Analysis Of Rotating Structures Using Image Denotation With Multiple-Pulsed Lasers And Moire Techniques
Author(s): James C. MacBain; William A. Stange; Kevin G. Harding
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Paper Abstract

During the past decade the optical measurement technique of image derotated hologram interferometry has evolved to a point where it has become an extremely useful laboratory tool for studying the resonant structural response of rotating bodies such as turbomachinery bladed disks. The results obtained using derotated hologram interferometry to study a simple bladed disk are presented. Both stationary and traveling disk modes of vibration were recorded. Also presented is an extension of the technique to quantitatively measure traveling mode shapes using a triple-pulsed laser. Combining moire analysis with image derotation is also discussed, and some preliminary experimental results are given.

Paper Details

Date Published: 1 June 1982
PDF: 4 pages
Opt. Eng. 21(3) 213474 doi: 10.1117/12.7972932
Published in: Optical Engineering Volume 21, Issue 3
Show Author Affiliations
James C. MacBain, Wright Aeronautical Laboratories (United States)
William A. Stange, Wright Aeronautical Laboratories (United States)
Kevin G. Harding, University of Dayton Research Institute (United States)

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