A flexbeam unit for a multi-blade rotor of a rotary wing aircraft, said flexbeam unit defining a predetermined number of torsion elements that are connectable with associated rotor blades, at least one torsion element comprising a flexbeam element having an associated longitudinal direction and comprising inner layers of a first fiber reinforced material that are embedded between outer layers of a second fiber reinforced material, said outer layers being composed of main plies comprising unidirectional fibers and said inner layers defining a cross section profile center in said associated longitudinal direction, said cross section profile center being composed of interconnected bias plies comprising fibers that are oriented transversely relative to said unidirectional fibers.
Flexbeam unit for a bearingless or a hinge- and bearingless multi-blade rotor of a rotary wing aircraft
2018-07-24
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
European Patent Office | 2015
|European Patent Office | 2017
|European Patent Office | 2015
|European Patent Office | 2015
|European Patent Office | 2015
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