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US 2020/0023951 A1Published application
Variable Hub-to-Hub Phasing Rotor System
AssigneeBell Helicopter Textron Inc.
InventorsBrian Modrzejewski, Ken Shundo, Frank B. Stamps, David Popelka, J. Scott Drennan, Michael E. Rinehart
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Abstract
An aircraft includes a first rotor assembly, a second rotor assembly, and a rotor phase angle control system. The system includes a phase adjustor operably associated with the first rotor assembly and the second rotor assembly. The method includes sensing vibrations exerted on the aircraft and offsetting a phase angle of the first rotor assembly and the second rotor assembly to minimize the vibrations.
Claims3
A method, comprising:
- sensing vibrations exerted on an aircraft via two or more rotor assemblies during flight;
- and
- offsetting a phase angle of the two or more rotor assemblies with a phase adjustor to minimize the vibrations;
- wherein the process of sensing and the process of offsetting are achieved in real-time during flight;
- wherein a first rotor assembly of the two or more rotor assemblies is operably associated with a first shaft, and a second rotor assembly of the two or more rotor assemblies is operably associated with a second shaft;
- and
- wherein the phase adjustor is a clutch configured to disengage and reengage with the first shaft and the second shaft.
4 more elements
Dependencies are inferred from the claim text.