Structured panel with non-parallel cavity walls

Patent metadata

Field	Value
Publication number	US-11014331-B2
Application number	US-201916531753-A
Country	US
Kind code	B2
Filing date	Aug 5, 2019
Priority date	Aug 5, 2019
Publication date	May 25, 2021
Grant date	May 25, 2021

Abstract

A panel includes a corrugated base with base corrugations configured from first base segments and second base segments. A first of the base corrugations includes a first of the first base segments and a first of the second base segments that is non-parallel to the first of the first base segments. The first of the base corrugations forms a first channel that extends laterally between and longitudinally along the first of the first base segments and the first of the second base segments. A corrugated stringer includes a plurality of stringer corrugations arranged longitudinally along and within the first channel. The stringer corrugations are configured from first stringer segments and second stringer segments. A first of the stringer corrugations includes a first of the first stringer segments and a first of the second stringer segments that is non-parallel to the first of the first stringer segments.

First claim

What is claimed is:

1. A panel, comprising:
a core including a corrugated base and a corrugated stringer;
the corrugated base including a plurality of base corrugations configured from at least a plurality of first base segments, a plurality of second base segments and a plurality of base bridge segments, a first of the plurality of base corrugations including a first of the plurality of first base segments, a first of the plurality of second base segments and a first of the plurality of base bridge segments, the first of the plurality of second base segments non-parallel to the first of the plurality of first base segments, the first of the plurality of base bridge segments extending laterally between and connected to the first of the plurality of first base segments and the first of the plurality of second base segments, and the first of the plurality of base corrugations forming a first channel that extends laterally between and longitudinally along the first of the plurality of first base segments and the first of the plurality of second base segments; and
the corrugated stringer including a plurality of stringer corrugations arranged longitudinally along and within the first channel, the plurality of stringer corrugations configured from at least a plurality of first stringer segments, a plurality of second stringer segments and a plurality of stringer bridge segments, a first of the plurality of stringer corrugations including a first of the plurality of first stringer segments, a first of the plurality of second stringer segments and a first of the plurality of stringer bridge segments, the first of the plurality of second stringer segments non-parallel to the first of the plurality of first stringer segments, the first of the plurality of stringer bridge segments extending longitudinally between and connected to the first of the plurality of first stringer segments and the first of the plurality of second stringer segments, and the first of the plurality of stringer bridge segments attached to the first of the plurality of base bridge segments.

2. The panel of claim 1 , wherein
the first of the plurality of first base segments is angularly offset from the first of the plurality of second base segments by a base segment angle, and the base segment angle is one of an acute angle, a ninety-degree angle and an obtuse angle; and
the first of the plurality of first stringer segments is angularly offset from the first of the plurality of second stringer segments by a stringer segment angle, and the stringer segment angle is one of an acute angle, a ninety-degree angle and an obtuse angle.

3. The panel of claim 1 , wherein
the core is configured with a cavity;
the cavity extends laterally between the first of the plurality of first base segments and the first of the plurality of second base segments; and
the cavity extends longitudinally between the first of the plurality of first stringer segments and the first of the plurality of second stringer segments.

4. The panel of claim 1 , wherein each of the plurality of stringer corrugations extends laterally between and is connected to the first of the plurality of first base segments and the first of the plurality of second base segments.

5. The panel of claim 1 , further comprising:
a first skin;
the core arranged adjacent and connected to the first skin.

6. The panel of claim 5 , wherein the first skin is a porous first skin.

7. The panel of claim 1 , further comprising:
a first skin; and
a second skin;
the core arranged between the first skin and the second skin;
each of the plurality of base corrugations connected to the first skin and the second skin, wherein the first of the plurality of base bridge segments is between and attached to the second skin and the first of the plurality of stringer bridge segments; and
each of the plurality of stringer corrugations connected to at least the first skin or the second skin.

8. The panel of claim 1 , wherein
the first of the plurality of first base segments is configured as a first baffle; and
the first of the plurality of second base segments is configured as a second baffle.

9. The panel of claim 1 , wherein
the first of the plurality of first base segments is configured as a baffle; and
the first of the plurality of second base segments is configured as a porous septum.

10. The panel of claim 1 , wherein
the first of the plurality of first base segments is configured as a first porous septum; and
the first of the plurality of second base segments is configured as a second porous septum.

11. The panel of claim 1 , wherein
the first of the plurality of first stringer segments is configured as a first baffle; and
the first of the plurality of second stringer segments is configured as a second baffle.

12. The panel of claim 1 , wherein
the first of the plurality of first stringer segments is configured as a baffle; and
the first of the plurality of second stringer segments is configured as a porous septum.

13. The panel of claim 1 , wherein
the first of the plurality of first stringer segments is configured as a first porous septum; and
the first of the plurality of second stringer segments is configured as a second porous septum.

14. The panel of claim 1 , wherein at least one of the first of the plurality of first base segments and the first of the plurality of second base segments is each configured with a structural reinforcement.

15. The panel of claim 1 , wherein at least one of the first of the plurality of first stringer segments and the first of the plurality of second stringer segments is each configured with a structural reinforcement.

16. The panel of claim 1 , wherein
a second of the plurality of base corrugations includes a second of the plurality of first base segments and a second of the plurality of second base segments that is non-parallel to the second of the plurality of first base segments, and the second of the plurality of base corrugations forms a second channel that extends laterally between and longitudinally along the second of the plurality of first base segments and the second of the plurality of second base segments;
the core further includes a second corrugated stringer; and
the second corrugated stringer includes a plurality of second stringer corrugations arranged longitudinally along and within the second channel.

17. The panel of claim 1 , wherein
a second of the plurality of base corrugations includes a second of the plurality of first base segments and a second of the plurality of second base segments that is non-parallel to the second of the plurality of first base segments, and a second channel extends laterally between and longitudinally along the first of the plurality of second base segments and the second of the plurality of first base segments;
the core further includes a second corrugated stringer; and
the second corrugated stringer includes a plurality of second stringer corrugations arranged longitudinally along and within the second channel.

18. A panel, comprising:
a first skin;
a second skin; and
a core arranged vertically between and connected to the first skin and the second skin, the core including a corrugated base and a plurality of corrugated stringers;
the corrugated base configured with a plurality of base corrugations, a plurality of first channels and a plurality of second channels, each of the plurality of base corrugations forming a respective one of the first channels adjacent the first skin, and each adjacent pair of the plurality of base corruga

Assignees

• Rohr Inc

Inventors

• Gurvich Mark R
• Zafiris Georgios S
• Anderson Jeffrey A
• Kelford Bryce T
• Kestler Steven M
• Hoehn George

Classifications

• B64C1/064

  Stringers; Longerons · CPC title

• B29D99/0021

  provided with plain or filled structures, e.g. cores, placed between two or more plates or sheets, e.g. in a matrix · CPC title

• G10K11/168

  Plural layers of different materials, e.g. sandwiches · CPC title

• E04C2002/345

  with triangular corrugations · CPC title

• E04C2002/3472

  with multiple layers of profiled spacer sheets · CPC title