Airbus Helicopters

Eurocopter

Christophe Perrin

Nicolas Pierre Certain

Nicolas Imbert

Charles Chuc

The present invention relates to a rotorcraft rotor () having a plurality of blades () movably mounted on a hub () via blade roots () that are respectively associated therewith. The rotor () is fitted with an information capture appliance having at least one measurement assembly (E) comprising a flexible bar () interposed in engagement at its respective ends between the hub () and a blade root () that is allocated thereto. A strain gauge () formed of a SAW transducer is implanted on the bar () and generates information relative to the bending of the bar () following tilting orientations of the blade root () in flapping (B) and/or in lag (T).

Device for monitoring the flapping and/or lag behavior of a blade of a rotorcraft rotor

The invention relates to a rotor for a rotorcraft having foldable hinged blades, the rotor comprising a hub (), each blade being connected to the hub via a sleeve, each sleeve being hinged about a pitch axis () relative to the hub, the rotor including a respective lag damper () associated with each blade, each damper being hinged both to the hub and to the corresponding sleeve, the rotor including a system for controlling the pitch of the blades via respective pitch levers () secured to each of the sleeves; the rotor includes two abutments designed to co-operate with tooling for blocking the pitch of the blades, a first abutment presenting a bearing surface () matching a shape of revolution about an axis () of revolution, and a second abutment () designed to act axially along said axis of revolution.

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Salon de Provence, France

Christophe Perrin