SYSTEM FORMING A TWO DEGREES OF FREEDOM ACTUATOR, FOR EXAMPLE FOR VARYING THE PITCH ANGLE OF THE BLADES OF A PROPELLER DURING ROTATION

摘要

A two degrees of freedom actuator for example for multi-bladed rotor of an aircraft with at least two blades that are driven in rotation about a main rotation axis by primary actuator, and a secondary actuator that is arranged to rotate each of said blades about the respective blades' longitudinal axis, with a synchronization means that is operatively arranged for driving the secondary actuator based on an azimuth of the rotor about the main axis for obtaining a determined cyclic pitch of a given amplitude for each blade depending on the azimuth of the rotor.