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Proceedings Paper

Vibratory Analysis Of A Rotating Bladed Disk Using Holographic Interferometry And Laser Vibrometry
Author(s): Jean-Loup Lesne; Th. Fevrier; Ph. Triquigneaux; C. Le Floc'h
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Paper Abstract

By the use of two different optical technics, we investigate the resonant response of a bladed disk (30 blades, 1.2 m diameter) under various industrial conditions of rotation and vibratory excitation. The two complementary technics we used to perform a modal analysis are : the double pulse image derotated holography and the laser vibrometry. By spectral analysis of the vibrometer's signal, we are able to construct an inverse Campbell diagram of the spinning disk. A six minutes movie shows the test facility, the optical systems and some holograms with nodal lines.

Paper Details

Date Published: 16 July 1986
PDF: 6 pages
Proc. SPIE 0599, Optics in Engineering Measurement, (16 July 1986); doi: 10.1117/12.952356
Show Author Affiliations
Jean-Loup Lesne, EDF/DER (France)
Th. Fevrier, EDF/DER (France)
Ph. Triquigneaux, EDF/DER (France)
C. Le Floc'h, Aerospatiale (France)

Published in SPIE Proceedings Vol. 0599:
Optics in Engineering Measurement
William F. Fagan, Editor(s)

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