Outlet guide vane mount
Outlet guide vane mounts with an airfoil structure are disclosed herein. The airfoil structure includes an airfoil platform, a composite material, a load spreader block, and a shim material, the composite material and a load spreader block positioned on the airfoil platform, the composite material having a first stiffness and the load spreader block having a second stiffness, and a shim material positioned between the composite material and the load spreader block, the shim material having a third stiffness different from at least one of the first stiffness or the second stiffness.
1 . An airfoil structure, comprising:
an airfoil platform;
a composite material;
a load spreader block; and
a shim material,
the composite material and the load spreader block positioned on the airfoil platform, the composite material having a first stiffness and the load spreader block having a second stiffness; and
the shim material positioned between the composite material and the load spreader block, the shim material having a third stiffness different from at least one of the first stiffness or the second stiffness, wherein the shim material includes an interrupted surface area between a first bolted joint and a second bolted joint.
2 . The airfoil structure of claim 1 , wherein the airfoil structure forms a part of a cantilevered-supported airfoil.
3 . The airfoil structure of claim 1 , wherein the shim material is a nickel-chromium-based superalloy.
4 . The airfoil structure of claim 1 , wherein the load spreader block includes at least one bolted connection.
5 . The airfoil structure of claim 1 , wherein a Young's modulus associated with the third stiffness is higher than the Young's modulus associated with at least one of the first stiffness or the second stiffness.
6 . The airfoil structure of claim 1 , wherein the shim material covers at least 10% of an interface surface between the load spreader block and the composite material.
7 . The airfoil structure of claim 1 , wherein the shim material includes a perforated surface.
8 . The airfoil structure of claim 1 , wherein a thickness of the shim material is increased to prevent contact between the composite material and the load spreader block.
9 . The airfoil structure of claim 1 , wherein a layer of fiberglass plies separates at least one of the load spreader block or the composite material from the shim material.
10 . An airfoil structure, comprising:
a first shim material positioned adjacent to a load spreader block; and
a second shim material positioned adjacent to an airfoil, wherein the first shim material is in contact with the second shim material, a first stiffness of the first shim material and a second stiffness of the second shim material different from at least one of (1) a third stiffness of the load spreader block or (2) a fourth stiffness of the airfoil, wherein the first shim material or the second shim material includes an interrupted surface area between a first bolted joint and a second bolted joint.
11 . The airfoil structure of claim 10 , wherein the airfoil structure forms a part of a cantilevered-supported airfoil.
12 . The airfoil structure of claim 10 , wherein the first shim material or the second shim material is a nickel-chromium-based superalloy.
13 . The airfoil structure of claim 10 , wherein the load spreader block includes at least one bolted connection.
14 . The airfoil structure of claim 10 , wherein a Young's modulus associated with the first stiffness or the second stiffness is higher than the Young's modulus associated with at least one of the third stiffness or the fourth stiffness.
15 . The airfoil structure of claim 10 , wherein at least one of the first shim material or the second shim material covers at least 10% of an interface surface between the load spreader block and a composite material of the airfoil structure.
16 . The airfoil structure of claim 10 , wherein at least one of the first shim material or the second shim material includes a perforated surface.
17 . The airfoil structure of claim 10 , wherein a first layer of fiberglass plies separates the first shim material from the load spreader block.
18 . The airfoil structure of claim 10 , wherein a first layer of fiberglass plies is positioned at an upper surface of the first shim material and a second layer of fiberglass is positioned at a lower surface of the first shim material.