The details of predicting the aerodynamic forces of maneuvering helicopter rotors are discussed in this paper. A new approach to modeling the unsteady rotor aerodynamic forces is presented based on the insight into nonuniform induced velocity distribution, inflow dynamics and unsteady airfoil behavior. For a specified maneuver, the rotor control inputs and helicopter flight attitudes during the maneuvering are first obtained using inverse solution technique, and then the unsteady rotor forces are numerically simulated by synthetically applying the vortex theory, dynamic inflow theory and unsteady airfoil aerodynamic models. Good results of the sample calculations of lateral jink and pop-up maneuvers are obtained.
Modeling the unsteady aerodynamic forces of a maneuvering rotor
Aircraft Engineering and Aerospace Technology ; 71 , 5 ; 444-450
1999-10-01
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Modeling the unsteady aerodynamic forces of a maneuvering rotor
Online Contents | 1999
|Unsteady aerodynamic models for maneuvering aircraft
AIAA | 1993
|Unsteady aerodynamic models for maneuvering aircraft
NTRS | 1993
|Unsteady Aerodynamic Models for Maneuvering Aircraft
British Library Conference Proceedings | 1993
|Control of Unsteady Aerodynamic Forces
NTIS | 1990
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