Vibration control assembly
AssigneeLockheed Martin Corporation
InventorsWilliam A. Welsh, Yuriy Gmirya, Damaris R. Zachos
Life of this patent
Estimating the term…
Abstract
A vibration control assembly includes a housing having an interior region and an inner mass including a cage disposed within the interior region of the housing and being rotatable within the housing about a first axis and a gyroscope wheel disposed within the cage and rotatable about a second axis other than the first axis. At least one driving source includes a stator and is operable to interact with a magnetic field of the inner mass to drive rotation of the inner mass about at least one of the first axis and the second axis, wherein the at least one driving source is mounted within the interior region of the housing.
Claims20
A vibration control assembly comprising:
- a housing having an interior region;
- an inner mass including:
- a cage disposed within the interior region of the housing, the cage being rotatable within the housing about a first axis;
- and
- a gyroscope wheel disposed within the cage and rotatable about a second axis other than the first axis;
- and
- at least one driving source comprising a stator operable to interact with a magnetic field of the inner mass to drive rotation of the inner mass about at least one of the first axis and the second axis, wherein the at least one driving source is mounted within the interior region of the housing.
An aircraft comprising:
- an airframe;
- a rotor system mounted to the airframe, wherein the main rotor system is rotatable about a rotor axis and which imparts a vibration into the airframe;
- and
- at least one vibration control assembly operably coupled to at least one of the main rotor system and the airframe to suppress the vibration, the at least one vibration control assembly including:
- a housing having an interior region;
- an inner mass disposed within the interior region of the housing, the inner mass including a first portion rotatable about a first axis and a second portion coupled to the first portion, the second portion being rotatable about a second axis;
- and
- a driving source mounted within the interior region of the housing, the driving source being operable to interact with a magnetic field of the inner mass to rotate the inner mass about at least one of the first axis and the second axis.
Dependencies are inferred from the claim text.