Problem of "ground resonance" in helicopters discussed with emphasis on practical considerations; formulas given which enable calculations to be carried out for center of range of instability, critical speeds for flywheel-type resonance, and damping required to eliminate range of instability; landing gear and blade dampers, and methods of tests considered.
Ground vibrations of helicopters
J Aeronautical Sciences
Journal of the Aeronautical Sciences ; 13 , n 5
1946
Bibliography
Article (Journal)
English
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