Vibration-damping shim for fan blade
AssigneeSnecma
InventorsLaurent Bilz, Fabrice Marois, Patrick Jean-Louis Reghezza, Julien Tran
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Abstract
A vibration-damping shim configured to be interposed between a platform of a fan blade and a fan disk, including a radially external surface fitted with plates in contact with the fan blade platform, and a radially internal surface formed by an upstream surface, configured to be facing the disk, and a downstream surface separated from the upstream surface by a break in alignment. The upstream surface includes a zone protruding radially towards the interior, initiated at some distance from its upstream end.
Claims7
A vibration-damping shim configured to be interposed between a platform of a fan blade and a fan disk, comprising:
- a radially external surface fitted with at least one plate in contact with the fan blade platform;
- and
- a radially internal surface formed by an upstream surface, configured to be facing the disk, and a downstream surface separated from the upstream surface by a break in alignment, wherein the upstream surface is located radially towards the interior relative to the downstream surface,
- wherein the upstream surface includes a zone protruding radially towards the interior, initiated at a distance from its upstream end.
Dependencies are inferred from the claim text.