Helicopter rotor and transmission mounting and vibration...

Details Helicopter rotor and transmission mounting and vibration... Helicopter rotor and transmission mounting and vibration...

B - Operations, Transporting

64

C

244/15

B64C 27/12 (2006.01) B64C 27/00 (2006.01)

Patent

CA 1066683

HELICOPTER ROTOR AND TRANSMISSION MOUNTING AND VIBRATION ISOLATION SYSTEM ABSTRACT OF THE DISCLOSURE A helicopter rotor and transmission mounting and vibration isolation system in which the transmission is supported from the fuselage by a plurality of elastomeric mounts which are selectively positioned and focused to establish a system roll axis and a system pitch axis on opposite sides of the elastomeric mounts and which mount members are of selected stiffness to establish selected roll stiffness and selected pitch stiffness of the system, to establish the natural frequencies of the system sufficiently below the blade passage frequency to minimize the response of the fuselage to forces and moments impart- ed by the helicopter rotor and to provide selected torque restraint and lift restraint for the system.

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