Trimming a high-fidelity multibody helicopter model for performance and control analysis

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Date
2015
Authors
Trainelli, L.
Croce, A.
Riboldi, C.E.
Possamai, R.
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Abstract
This paper brings forward the study of the dynamic behaviour of a novel lightweight helicopter featuring an innovative gimballed two-bladed main rotor. First, previous results for the isolated main rotor are extended for the case of free-coning under cyclic pitch perturbations and longitudinal gusts. Subsequently, the complete helicopter is modelled and a simple control system is derived and applied to steer the helicopter to steady hover and straight flight conditions, showing good characteristics also under gust perturbations.
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