CROSS-SHAPED COMPOSITE FLEXBEAM FOR BEARINGLESS ROTOR SYSTEM WITH CONVENIENT NATURAL FREQUNCY TUNING CAPACITY

摘要

The present invention relates to a composite flex beam of a cross-section cross-section for a bearing-free rotor system that is easy to adjust the natural frequency, and aims to increase the torsional flexibility through shape improvement and to adjust the natural frequency through a simple design change. .;Composite flex beam of the cross-sectional cross-section for the easy-frequency control rotor system according to the present invention, consisting of a hub connecting portion 110, a rod portion 120 and the main rotor blade connecting portion 130 in sequence from one side It is installed between the hub and the main rotor blade, the hub connecting portion and the main rotor blade connecting portion is a flat plate, respectively, the rod portion is made up of a horizontal portion (120a) and the vertical portion (120b) is formed in the cross-section longitudinal cross.;Flex Beam, Torque Tube, Helicopter, Cross