Vibratory Analysis Of A Rotating Bladed Disk Using Holographic Interferometry And Laser Vibrometry

1986 ◽  
Author(s):  
Jean-Loup Lesne ◽  
Th. Fevrier ◽  
Ph. Triquigneaux ◽  
C. Le Floc'h
Keyword(s):  
Holographic Interferometry ◽  
Laser Vibrometry ◽  
Bladed Disk ◽  
Vibratory Analysis

An Investigation of Dual Mode Phenomena in a Mistuned Bladed Disk

1983 ◽  
Vol 105 (3) ◽  
pp. 402-407 ◽  
Author(s):  
W. A. Stange ◽  
J. C. MacBain
Keyword(s):  
Strain Gage ◽  
Holographic Interferometry ◽  
Rotational Speed ◽  
Natural Frequencies ◽  
Mode Shapes ◽  
Dual Mode ◽  
Disk Model ◽  
Bladed Disk ◽  
Mode Splitting ◽  
Modes Of Vibration

This paper presents the results of an investigation addressing the effects of mistuning on the lower modes of vibration of a simple bladed-disk model. The phenomena of dual modes, also known as mode splitting, is studied using holographic interferometry and strain gage measurements under nonrotating and rotating conditions. Resonant amplitudes, mode shapes, and natural frequencies of the disk model were determined, without deliberately mistuning the disk. The tests were then repeated with the disk deliberately mistuned to varying degrees, paying particular attention to the second diameter (2N) dual modes. Additionally, tests were conducted on the disk at a rotational speed of 2000 rpm, in an effort to gain insight as to the vibratory characteristics of the disk under rotating conditions.

Holographic Interferometry

1979 ◽  
Author(s):  
Walter Schumann ◽  
Michel Dubas
Keyword(s):  
Holographic Interferometry

Real-time resonant holographic interferometry for combustion and plasma environments

1995 ◽  
Author(s):  
N Brock ◽  
M Brown ◽  
P DeBarber ◽  
M Millard ◽  
J Millerd ◽  
...  
Keyword(s):  
Real Time ◽  
Holographic Interferometry

New Applications of Laser Vibrometry

2020 ◽  
Vol 84 (6) ◽  
pp. 678-682
Author(s):  
A. V. Stulenkov ◽  
P. I. Korotin ◽  
A. S. Suvorov
Keyword(s):  
Laser Vibrometry ◽  
New Applications
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