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US 2022/0025772 A1Published application
Distributed hybrid damping system
AssigneeGeneral Electric Company
InventorsSuryarghya CHAKRABARTI, Bugra Han ERTAS
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Abstract
A unit cell (26) for use in a damping system (24) includes: an impacting structure (34); a cavity (32) encapsulating the impacting structure (34), the cavity (32) including a first hemisphere (32A) and a second hemisphere (32B), the cavity (32) disposed within a substrate (28), the substrate (28) forming an outer casing of the cavity (32); and at least one fluid (36) disposed in each of the first and second hemispheres (32A, 32B) between the impacting structure (34) and the outer casing (28).
Claims15
1-17. (canceled)
A turbine blade comprising:
- an internal vibration damping system disposed within the turbine blade, the internal vibration damping system comprising:
- a plurality of unit cells, each unit cell of the plurality of unit cells comprising:
- an impacting structure;
- a cavity encapsulating the impacting structure, the cavity comprising a first hemisphere and a second hemisphere, the cavity disposed within a substrate of the turbine blade, the substrate forming an outer casing of the cavity;
- and
- at least one fluid disposed in each of the first and second hemispheres between the impacting structure and the outer casing;
- wherein the internal vibration damping system dampens at least one vibration mode in the turbine blade.
4 more elements
Dependencies are inferred from the claim text.