ROTOR OF AN AIRCRAFT COMPRISING A HELICAL ACTUATOR

摘要

A helical actuator includes a plurality of piezo elements for controlling a rotor blade of an aircraft. In this case, the actuator is designed to be arranged so as to be wound around a rotor blade neck and to be fastened to a rotor mast and a rotor blade in each case. Applying a control voltage to the piezo elements causes the actuator to expand, which, in turn, causes the rotor blade to rotate.

主权项

1. A rotor for an aircraft, the rotor comprising:
a rotor blade; a rotor blade connection configured to connect the rotor blade to a rotor mast; a resilient blade neck connecting the rotor blade to the rotor blade connection and permitting a rotational movement of the rotor blade about an axis of rotation in the longitudinal direction of the rotor blade; and a helical actuator for controlling the rotor blade of the aircraft; wherein the helical actuator is arranged so as to be wound around the resilient blade neck, wherein the helical actuator is fastened by a first end to the rotor mast and by a second end to the rotor blade, and wherein the actuator comprises a plurality of piezo elements arranged in series to adjust the rotor blade when a control voltage is applied to the piezo elements.