Improvement for damping supports of helicopter rotor blades and helicopter rotor with such supports

摘要

The invention relates to an anti-vibration (damping) device including two rigid skeletons (1, 2) which are parallel and perpendicular to a first axis (Z) and at least one laminated element (5) interposed between the two skeletons, the said laminated element consisting of alternate layers of rigid material and elastomer which are located perpendicularly to the first axis, the said laminated element allowing the relative displacement of the two skeletons along a second axis (Y) perpendicular to the first one. According to the invention, the device further comprises a hydraulic damper which has at least two deformable leaktight pockets (A, B) connected by a restricted passage (C), the two leaktight pockets and the restricted passage being filled with a liquid, each leaktight pocket being at least partially delimited by a deformable wall (6) which is fixed to the two skeletons allowing their relative movement parallel to the second axis. IMAGE