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US 2017/0361926 A1Published application
Method of balancing a main rotor hub
AssigneeSikorsky Aircraft Corporation
InventorKrzysztof KOPANSKI
Life of this patent
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Abstract
A rotor system is provided including a rotor hub configured to rotate about an axis and a plurality of rotor blade assemblies mounted to the rotor hub and configured to rotate within a plane about the axis. A vibration reducing system is operably coupled to the rotor hub. The vibration reducing system is arranged at a position offset from a center of rotation of the rotor hub.
Claims15
A rotor system, comprising:
- a rotor hub configured to rotate about an axis;
- a plurality of rotor blade assemblies mounted to the rotor hub and configured to rotate within a plane about the axis;
- a vibration reducing system operably coupled to the rotor hub, the vibration reducing system being arranged at a position offset from a center of rotation of the rotor hub.
A rotary wing aircraft, comprising:
- an airframe;
- a main rotor system operably coupled to the airframe, the main rotor system being rotatable about an axis, the main rotor system including:
- a rotor hub;
- a plurality of rotor blade assemblies mounted to the rotor hub and configured to rotate within a plane about the axis;
- and
- a vibration reducing system operably coupled to the rotor hub, the vibration reducing system being arranged at a position offset from a center of rotation of the rotor hub.
3 more elements
A method of suppressing vibrations of a rotary wing aircraft, comprising:
- measuring an imbalance between a plurality of rotor blade assemblies mounted to a rotor hub of a rotor system of the rotary wing aircraft;
- determining a balanced position of a vibration reduction system, the balanced position being offset from a center of the rotor hub;
- and
- moving the vibration reduction system to the balanced position.
1 more element
Dependencies are inferred from the claim text.