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US 10,647,418 B2Granted
Aircraft load and vibration attenuation
AssigneeBell Helicopter Textron Inc.
InventorsMichael S. Seifert, Brett C. Howard, Thomas C. Parham, Jr., Martin Alex Peryea
Life of this patent
Estimating the term…
Abstract
In one embodiment, an apparatus comprises a particle damper for damping a component when the particle damper is attached to the component. The particle damper comprises a plurality of pockets configured to hold a plurality of particles, and the particle damper also comprises an attachment fitting for coupling the particle damper to the component.
Claims18
An apparatus, comprising:
- a particle damper for damping a component of an aircraft, when the particle damper is attached to the component, wherein the particle damper comprises:
- a plurality of pockets configured to removably retain a plurality of particles;
- and
- an attachment fitting for removably coupling the particle damper to an outboard end of the component.
1 more element
A rotorcraft, comprising:
- a particle damper to provide damping for the rotorcraft, wherein the particle damper comprises a plurality of pockets configured to removably retain a plurality of particles and is removably coupled to an external surface of an outboard end of a component of the rotorcraft;
- wherein at least one pocket of the plurality of pockets comprises slideable walls for adjusting a size of the at least one pocket.
A method, comprising:
- identifying a first configuration for a particle damper of a rotorcraft, wherein the particle damper comprises a plurality of pockets configured to removably retain a plurality of particles and an attachment fitting for removably coupling the particle damper to an external surface of an outboard end of the component;
- configuring the particle damper based on the first configuration for the particle damper;
- testing the particle damper to determine a performance level of the first configuration;
- identifying a second configuration for the particle damper based on the performance level of the first configuration;
- and
- configuring the particle damper based on the second configuration for the particle damper;
- wherein at least one pocket of the plurality of pockets comprises slideable walls for enabling adjustment of a size of the at least one pocket.
4 more elements
Dependencies are inferred from the claim text.