Aerodynamics machine in-place tile thermal protection

Patent metadata

Field	Value
Publication number	US-11235894-B2
Application number	US-201916715346-A
Country	US
Kind code	B2
Filing date	Dec 16, 2019
Priority date	Mar 28, 2017
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A method for building an aerodynamic structure, an aerodynamic structure, and a vehicle that includes the aerodynamic structure are provided. The method includes providing a structure with at least one substantially-flat exterior surface. The method also includes attaching blocks of rigid fibrous insulation to the at least one substantially-flat outer surface of the structure. Outward-facing surfaces of the blocks of rigid fibrous insulation extend past a target outer mold line of a final aerodynamic shape. The method also includes machining the outward-facing surfaces of the attached blocks to the outer mold line.

First claim

What is claimed is:

1. A method of building an aerodynamic structure, comprising: providing a structure with at least one substantially flat surface; attaching a plurality of rigid insulation blocks to the at least one substantially flat surface of the structure, wherein outward-facing surfaces of the plurality of rigid insulation blocks extend past an outer mold line of an aerodynamic shape; and machining the outward-facing surfaces of the plurality of rigid insulation blocks to the outer mold line of the aerodynamic shape after attaching the plurality of rigid insulation blocks to the at least one substantially flat surface of the structure.

2. The method of claim 1 , further comprising: applying a slurry to the machined outward-facing surfaces of the plurality of rigid insulation blocks.

3. The method of claim 2 , further comprising: covering gaps between two or more adjacent rigid insulation blocks of the plurality of rigid insulation blocks before applying the slurry to the machined outward-facing surfaces of the plurality of rigid insulation blocks.

4. The method of claim 2 , wherein the slurry comprises ceramic particles suspended in a colloidal solution.

5. The method of claim 4 , further comprising curing the slurry at room temperature.

6. The method of claim 1 , wherein attaching the plurality of rigid insulation blocks to the at least one substantially flat surface of the structure comprises:
applying a slurry to inward-facing surfaces of one or more rigid insulation blocks of the plurality of rigid insulation blocks;
applying an adhesive to the inward-facing surfaces of the one or more rigid insulation blocks after the applied slurry has cured; and
adhering the one or more rigid insulation blocks to the at least one substantially flat surface of the structure.

7. The method of claim 6 , wherein the slurry comprises ceramic particles suspended in a colloidal solution.

8. The method of claim 6 , further comprising curing the slurry at room temperature.

9. The method of claim 6 , further comprising curing the slurry at a temperature above 100° F.

10. The method of claim 6 , wherein the adhesive comprises a room temperature vulcanizing silicone.

11. The method of claim 1 , further comprising:
attaching a strain isolation pad to the at least one substantially flat surface,
wherein attaching the plurality of rigid insulation blocks to the at least one substantially flat surface of the structure comprises attaching the plurality of rigid insulation blocks to the strain isolation pad.

12. The method of claim 1 , wherein the structure comprises a second substantially flat surface intersecting at an angle with one surface of the at least one substantially flat surface.

13. The method of claim 12 , comprising:
attaching a second plurality of rigid insulation blocks to the second substantially flat surface, wherein outward-facing surfaces of the second plurality of blocks extend past the outer mold line of the aerodynamic shape; and
machining the outward-facing surfaces of the second plurality of rigid insulation blocks to the outer mold line of the aerodynamic shape after attaching the second plurality of rigid insulation blocks to the second substantially flat surface of the structure.

14. The method of claim 13 , wherein at least a portion of an inward-facing surface of one rigid insulation block of the second plurality of rigid insulation blocks is in a facing relationship with at least a portion of a side-facing surface of one rigid insulation block of the plurality of rigid insulation blocks attached to the one surface of the at least one substantially flat surface of the structure.

15. The method of claim 14 , wherein at least one rigid insulation block in the facing relationship has a side surface arranged at a non-orthogonal angle relative to an inward-facing surface and an outward-facing surface of the at least one rigid insulation block.

16. The method of claim 13 , further comprising applying a slurry to the machined outward-facing surfaces of the second plurality of rigid insulation blocks.

17. The method of claim 16 , further comprising covering gaps between two or more adjacent rigid insulation blocks of the second plurality of rigid insulation blocks before applying the slurry to the machined outward-facing surfaces of the second plurality of rigid insulation blocks.

18. The method of claim 13 , wherein attaching the second plurality of rigid insulation blocks to the at least one substantially flat surface of the structure comprises:
applying a slurry to inward-facing surfaces of one or more rigid insulation blocks of the second plurality of rigid insulation blocks;
applying an adhesive to the inward-facing surfaces of the one or more rigid insulation blocks of the second plurality of rigid insulation blocks after the applied slurry has cured; and
adhering the one or more rigid insulation blocks of the second plurality of rigid insulation to the second substantially flat surface of the structure.

19. The method of claim 1 , wherein the aerodynamic shape forms at least a portion of a leading edge of an airfoil.

20. The method of claim 1 , wherein the aerodynamic shape forms at least a portion of a wing-to-body fairing for a vehicle.

Assignees

• Boeing Co

Inventors

• Nevarez Moises
• Perez Robert J
• Klimczak Stephanie C
• Embler Jonathan D

Classifications

• B64G1/62

  Systems for re-entry into the earth's atmosphere; Retarding or landing devices · CPC title

• B64C1/12

  Construction or attachment of skin panels · CPC title

• B64G1/14

  Space shuttles {(reusable launch rockets B64G1/006)} · CPC title

• B64C1/40

  Sound or heat insulation {, e.g. using insulation blankets} · CPC title

• B64C3/26

  Construction, shape, or attachment of separate skins, e.g. panels · CPC title