This paper presents the analysis of aeroelastic Rotorcraft-Pilot Coupling (RPC) problems. The structural dynamics of the airframe and of the rotor, and the dynamics of the control system, including the passive biomechanics of the pilot, are modeled using a free general-purpose multibody solver. The aerodynamics of the main rotor is modeled using an original free wake implementation based on the Boundary Element Method (BEM). The analysis is applied to the collective bounce problem, by assessing the existence of the phenomenon and the appropriateness of the aerodynamic and aeroservoelastic model for its analysis. The influence of various properties of the model on the stability of the response is discussed as well.
An Investigation of Aeroelastic Rotorcraft-Pilot Interaction
MASARATI, PIERANGELO;QUARANTA, GIUSEPPE;
2011-01-01
Abstract
This paper presents the analysis of aeroelastic Rotorcraft-Pilot Coupling (RPC) problems. The structural dynamics of the airframe and of the rotor, and the dynamics of the control system, including the passive biomechanics of the pilot, are modeled using a free general-purpose multibody solver. The aerodynamics of the main rotor is modeled using an original free wake implementation based on the Boundary Element Method (BEM). The analysis is applied to the collective bounce problem, by assessing the existence of the phenomenon and the appropriateness of the aerodynamic and aeroservoelastic model for its analysis. The influence of various properties of the model on the stability of the response is discussed as well.| File | Dimensione | Formato | |
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