Helicopter Ground Resonance

1 February 1959

journal article
Published by Emerald Publishing in Aircraft Engineering and Aerospace Technology

Vol. 31 (2) , 32-39
https://doi.org/10.1108/eb033077

Abstract

The equations of motion developed by R. P. Coleman have been evaluated for a particular helicopter configuration and a large number of different combinations of rotor and fuselage damping. These results are displayed graphically and reveal the dependence of the unstable range on rotor and fuselage damping. Some of the conclusions are in disagreement with those reached by Coleman. Both viscous and friction rotor dampers are considered.

Keywords

COLEMAN
FUSELAGE DAMPING
UNSTABLE RANGE
HELICOPTER GROUND
DISPLAYED GRAPHICALLY
ROTOR DAMPERS
GROUND RESONANCE
LARGE NUMBER
FRICTION ROTOR
HELICOPTER CONFIGURATION

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