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Effects of rotating frame turbulence and dynamic stall on gust response of helicopter bladesThe instantaneous or frequency-time spectrum of rotating frame turbulence (RFT) is presented. This spectrum makes it possible to predict the transfer of energy with respect to frequencies and the periodically varying nonstationarity with respect to time. Attention is also given to the RFT effects on the response statistics of an isolated rotor blade for low-advance-ratio and low-altitude conditions. It is noted that spectral density, rms values, and threshold-crossing expectation rates are significantly influenced by RFT.
Document ID
19910060754
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Madhavan, R.
(Florida Atlantic Univ. Boca Raton, FL, United States)
Gaonkar, G. H.
(Florida Atlantic University Boca Raton, United States)
Date Acquired
August 14, 2013
Publication Date
September 1, 1989
Subject Category
Aerodynamics
Accession Number
91A45377
Distribution Limits
Public
Copyright
Other

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