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Synthesis of blade flutter vibratory patterns using stationary transducersFlutter frequency was determined and rotor vibratory amplitude and phase distributions during flutter were reconstructed from stationary aerodynamic type measurements. A previously reported optical method for measuring blade-tip displacement during flutter was extended by means of digital analysis. Displacement amplitudes and phase angles were determined based on this method. For selected blades, spectral results were also obtained from strain gage measurements. The results from these three types of measurement were compared and critically evaluated.
Document ID
19780009058
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kurkov, A. (NASA Lewis Research Center Cleveland, OH, United States)
Dicus, J. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
March 1, 1977
Subject Category
Aerodynamics
Report/Patent Number
NASA-TM-73821
E-9410
Report Number: NASA-TM-73821
Report Number: E-9410
Meeting Information
Meeting: Gas Turbine Conf.
Location: London
Start Date: April 9, 1978
End Date: April 13, 1978
Sponsors: Am. Soc. of Mechan. Engineers
Accession Number
78N17001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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