Rotating structure and a method of producing the rotating structure
AssigneeROLLS-ROYCE plc
InventorsBradley T. Fanton, Roy David Fulayter
Life of this patent
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Abstract
According to one aspect, a rotating structure comprises a hub having a mounting slot defined by a cavity surface and a body having an anchor structure disposed in the mounting slot. A wear member is disposed between the anchor structure and the cavity surface and the wear member has at least first and second portions of first and second material characteristics, respectively.
Claims19
A rotating structure, comprising:
- a hub having a mounting slot defined by a cavity surface;
- a body having an anchor structure disposed in the mounting slot;
- and
- a wear member disposed between the anchor structure and the cavity surface,
- wherein the wear member has at least first and second portions of first and second material characteristics, respectively, the first material extends between inner and outer surfaces of the first portion, the second material extends between inner and outer surfaces of the second portion, and the wear member is disposed in the slot such that the outer surfaces of the first and second portions abut the cavity surface and the inner surfaces of first and second portions abut a surface of the anchor structure;
- and
- wherein each of the first and second portions includes first and second metals respectively.
A rotating structure, comprising:
- a turbomachine hub having a plurality of mounting slots each defined by a cavity surface;
- a plurality of rotatable fan blades each having an anchor structure disposed in an associated one of the mounting slots;
- and
- at least one wear member disposed between each anchor structure and the cavity surface defined by the associated mounting slot,
- wherein each wear member includes at least a first and a second material, each having different moduli of elasticity and disposed in respective discrete first and second portions of the wear member, the first material extends between inner and outer surfaces of the first portion, the second material extends between inner and outer surfaces of the second portion, and the wear member is disposed in the slot such that the outer surfaces of the first and second portions abut the cavity surface and the inner surfaces of first and second portions abut a surface of the anchor structure;
- and
- wherein each of the first and second portions includes first and second metals respectively.
A method of producing a rotating structure having a rotatable member and a rotatable hub wherein an anchor member of the rotatable member is adapted for retention by a surface defining a slot in the hub, the method comprising the steps of:
- Determining stresses experienced by first and second anchor structure portions as a result of the hub rotating the rotatable member;
- Providing a wear member including first and second wear member portions made of first and second metallic materials, respectively, having different wear characteristics that are dependent upon the stresses, the first material extending between inner and outer surfaces of the first wear member portion, and the second material extending between inner and outer surfaces of the second wear member portion;
- and
- Assembling the anchor structure and the wear member in the slot so that the wear member is disposed between the anchor structure and the surface defining the slot and so that the outer surfaces of the first and second wear member portions abut the surface defining the slot and the inner surfaces of the first and second wear member portions abut a surface of the anchor structure.
Dependencies are inferred from the claim text.