WO1995018014A1 - Panneau a nid d'abeilles - Google Patents

Panneau a nid d'abeilles Download PDF

Info

Publication number
WO1995018014A1
WO1995018014A1 PCT/JP1994/002211 JP9402211W WO9518014A1 WO 1995018014 A1 WO1995018014 A1 WO 1995018014A1 JP 9402211 W JP9402211 W JP 9402211W WO 9518014 A1 WO9518014 A1 WO 9518014A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
honeycomb panel
core material
strip
materials
Prior art date
Application number
PCT/JP1994/002211
Other languages
English (en)
Japanese (ja)
Inventor
Keiji Ohmura
Sumio Okuno
Michifumi Takeichi
Morishige Hattori
Yasuo Ishimaru
Original Assignee
Hitachi, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi, Ltd. filed Critical Hitachi, Ltd.
Publication of WO1995018014A1 publication Critical patent/WO1995018014A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure

Definitions

  • the present invention relates to a structure of a honeycomb panel for a strength member formed by brazing, and particularly to a honeycomb panel suitable for joining a bracket for fitting.
  • the honeycomb panel is formed by bonding the face plate, the core, and the cores to each other with an adhesive or brazing.
  • brazed honeycomb panels for core manufacturing methods.
  • One of them is to cut a brazing sheet made of a wax material into a predetermined width to form a strip, as described in Japanese Patent Publication No.
  • a brazing sheet using wax as a cladding material is cut into a predetermined width to form a band plate.
  • the strip is bent in the thickness direction to form a core material, and the core material is disposed between a pair of face plates in a state where the flat surfaces in the longitudinal direction are arranged in contact with each other, and then brazing is performed.
  • the face plate, the core material, and the core material are bonded to each other, and the honeycomb panel is manufactured together with the formation of the core.
  • a brazed honeycomb panel in the case where a bracket for outfitting is provided in a general part, it is conceivable to join the bracket to the face plate with an adhesive, rivets or rivet bonding.
  • a method for forming a honeycomb panel by using an adhesive if example embodiment Japan JP 6 3 - 2 2 4 8 5 as described, the adhesive on one or both surfaces of a plurality of strips Is applied, a plurality of the strips are stacked, joined with an adhesive, then spread in the stacking direction of the strips to form a core, and then the face plate and the core are joined to form a honeycomb panel.
  • This method is basically the same as the method of forming the core and then joining the face plate and the core in the above-mentioned brazed honeycomb panel.
  • a method of disposing the bracket on the bonded honeycomb panel there is, for example, Japanese Patent Application Laid-Open No. Hei 2-35325.
  • a bolt insertion hole is provided in the honeycomb panel, and the bracket is fixed by bolts and nuts and joined.
  • the pitch of the adhesive at the time of forming the core is made smaller than that of the general part so that the core of the bolt insertion hole part of the honeycomb panel has a higher density than other general parts. are doing.
  • the plate pressure of the core material and the size of the hexagonal cells formed in the core are all the same. For this reason, for example, no consideration has been given to improving the strength of the portion in contact with the bracket.
  • An object of the present invention is to provide a honeycomb panel core in which the strength of the core in a portion where a local out-of-plane load acts is easily increased and the overall weight increase is suppressed. Disclosure of the invention
  • the above object is to provide a core material having two or more bent shapes, a band plate having the same height as the core material disposed at a boundary where the bent shapes of the core material are different, and The sides of the core material are applied to each other, the core material and the strip, and both edges of the core material and the strip and the face plate are joined by brazing to form a honeycomb panel. On the face plate surface, Local out-of-plane loads are achieved by acting or joining brackets to support and secure the fittings.
  • the core of the bracket joining portion can be smaller in size than the general portion. Therefore, the strength against the tightening load when fixing the bracket and the local out-of-plane load acting on the bracket can be made larger than other parts, and the strength reliability in the vicinity including the parts can be improved. improves.
  • the core size can be made larger in the general part than in the honeycomb panel with a lower core height in order to suppress an increase in the overall weight. Therefore, an increase in the overall weight can be minimized.
  • FIG. 1 is a plan view of a honeycomb panel according to a first embodiment of the present invention
  • FIG. 2 is a longitudinal sectional view when a bracket is joined to a honeycomb panel
  • FIG. FIG. 4 is a plan view of a honeycomb panel according to a second embodiment of the present invention
  • FIG. 5 is a plan view of a honeycomb panel according to a third embodiment of the present invention
  • FIG. 6 is a plan view of a honeycomb panel according to a fourth embodiment of the present invention
  • FIG. 7 is a plan view of a honeycomb panel according to a fifth embodiment of the present invention
  • FIG. It is a top view of the honeycomb panel of the 6th example.
  • a first embodiment of the present invention will be described with reference to FIGS. 1 is to bend a strip made from a brazing sheet into a predetermined shape in the thickness direction.
  • ⁇ ⁇ Core material formed as a result 2 is a core material with a smaller bending pitch than core material 1
  • 3 is a strip that does not bend
  • 4 is the joint surface and core of core material 1 and core material 2, respectively.
  • a brazing sheet made of a thin aluminum alloy core material made of brazing material is cut into a predetermined width to form a strip, and then the strip is formed into a predetermined shape in the thickness direction, for example, a positive shape.
  • Core materials 1 and 2 are manufactured by bending the hexagon (cell) into a shape that repeats the shape of one half of one side.
  • the length L 2 of the side of the core material 2 shown in FIG. 1 is made smaller than the length L 1 of the core material 1.
  • the dimensions of L2 should be sufficiently large in consideration of the method of fixing the bracket (not shown) provided after the honeycomb panel 7 is formed and the magnitude of the supporting load.
  • the core having the smaller side L2 is called core 5 '.
  • a strip 3 having the same height as the core materials 1 and 2 is manufactured from the brazing sheet.
  • the face plate 6 is a plate made of an aluminum alloy and is manufactured in a state where a brazing is arranged on one side.
  • the core material 1 and the core material 2 are disposed so that the bent flat portions la and 2a are in contact with the surface of the face plate 6 where the wax is disposed.
  • the strip 3 is disposed in contact with the bent flat portions 1b and 2b of the core material 1 and the core material 2.
  • the other face plate 6 is superimposed on the core materials 1 and 2 and the band plate 3 and the whole is heated to a predetermined temperature, and the core materials 1 and 2, the core materials 1 and 2 and the band plate 3 and the face plate 6 are joined at a time by brazing 4 to form a core 5 and a honeycomb panel 7.
  • the core materials 1 and 2 and the strip 3 are appropriately provided with small holes through which the gas in the core 5 can be sufficiently released during brazing.
  • a bracket 25 is attached to the outer surface of one face plate 6 at the portion of the core 5 ′ with an adhesive.
  • the bracket 25 includes a flat plate portion 25a to be joined to the face plate 6, a web 25c provided at the center of the flat plate portion, and a flange portion 25d following the web portion 25c.
  • the longitudinal direction of the web 25c is along the longitudinal direction of the core materials 1 and 2.
  • the structure is configured by combining a plurality of such honeycomb panels 7.
  • the bracket (not shown) is disposed on the honeycomb panel 7 by bonding, rivet or rivet to the outer surface of the face plate 6 where the core 5 ′ (the core portion of the small side L 2) is formed by the core material 2. Performed by rivet bonding that combines bonding and rivets.
  • the core 5 'near the joint of the bracket of the honeycomb panel 7 is smaller and denser than other parts, so that the The burden is reduced. That is, the allowable load of the bracket joint portion of the honeycomb panel 7 increases.
  • a strip 3 is disposed at the boundary between the two types of core materials 1 and 2 provided on the honeycomb panel 7, and the two core materials 1 and 2 are joined together. A state in which the size of the 5 'is different can be easily formed.
  • two types of cores 5 and 5 ', are used, but the number of types can be increased. Place strips at the boundaries of different core sizes In this way, multiple types of cores can be formed, and the magnitude of the local out-of-plane load acting on the honeycomb panel can be dealt with with an appropriate core size.
  • FIG. 1 2 is a short diaper arranged to join two types of core materials, 13 and 14 are two types of core materials having different sizes when the core is formed, and 15 is a honeycomb panel of the present embodiment. It is.
  • the same reference numerals as those in the above-described embodiment indicate the same members.
  • core materials 13 and 14 are manufactured as in the first embodiment.
  • the ends 13 and 14a of the two types of core materials 13 and 14 have their ends 13a and 14a respectively parallel to the longitudinal direction of the core material.
  • the length L 14 of the side of the cell is made smaller than the length L 13 of the side of the core material 13.
  • the dimensions of L14 should be sufficiently large in consideration of the method of fixing the brackets to be arranged after the honeycomb panel 15 is formed and the magnitude of the supporting load.
  • the strip 12 is made of a brazing sheet, and is manufactured at the same height as the core materials 13 and 14.
  • the core materials 13 and 14 are arranged on the face plate 6 in a state where they can be joined, and where the ends 13a and 14a can be joined directly (part A in Fig. 4), one end 1 3a sandwiches the other end 14a, and a short strip 12 is placed between the end 14a and the core material 13 at the point where only one end is located (part B in Fig. 4). You. Finally, the face plate 6 is superimposed on the core materials 13 and 14 and the band plate 12 and brazed.
  • the honeycomb panel 15 can change the size of the cores 5 and 5 'in the longitudinal direction of the core material.
  • the core material 1 is manufactured in the same manner as in the first embodiment.
  • the plate thickness and the bent shape of the core material 1 forming the honeycomb panel 19 are set so that the strength of the general portion when the structural body is formed by the honeycomb panel 19 can sufficiently respond.
  • the honeycomb panel 19 is manufactured by bringing the core material 1 into contact with the flat portions 1a sequentially in the longitudinal direction, and at the same time, blazing the same height as the core material 1 in some portions.
  • the strip 3 made of sheet is placed between the core materials 1 and 1 '.
  • the core material 1 and the band plate 3 are joined to the pair of face plates 6 and 6 by brazing 4.
  • An outfitting bracket (not shown) is bonded to the site where the core material 1 and the strip 3 are combined to form the core 5 "by using an adhesive, rivets or rivet bonding.
  • the core material 20 is manufactured by forming a strip from a brazing sheet and then bending the strip.
  • the core material 20 is provided with a plane portion 20b and a concave portion 20c on a surface 20a parallel to the longitudinal direction.
  • the height H of the recess 20 c is within the width B of the core material 20.
  • the core material 1 is manufactured in the same manner as in the first embodiment.
  • the core material 20 is disposed such that the flat portions 20b and 20b 'are in contact with each other, and the recessed portions 20c and 20c' are located in the core.
  • Core material 1 The boundary between and 20 is arranged such that the flat portion 1a of the core material 1 and the flat portion 20a of the core material 20 are in contact with each other.
  • the honeycomb panel 21 is formed by disposing a pair of face plates 6, 6 on both edges of the core materials 20 and 1 and joining them by brazing.
  • An outfitting bracket (not shown) is bonded to the core material 20 by adhesive, rivets or rivet bonding.
  • FIG. 22 is a thin-walled cylinder disposed in the height direction inside the core, and 23 is a honeycomb panel formed by using the thin-walled cylinder 22.
  • the same reference numerals as those of the above-described embodiment indicate the same members.
  • the core material 1 is manufactured in the same manner as in the first embodiment.
  • the thin-walled cylinder 22 is made of a brazing sheet with brazing material on both sides, and a strip with the same height as the core material 1 is manufactured.
  • the end is spot welded or ⁇ It is manufactured by joining using.
  • the core material 1 is disposed in contact with the longitudinal flat surface 1a, and the thin-walled cylinder 22 is disposed in the cell 5A where a local out-of-plane load is applied.
  • the thin cylinder 22 and the face plates 6, 6' are joined to each other by brazing 4.
  • the arrangement of the thin-walled cylinder 22 in the cell 5A is performed by deforming the cross-section of the cylinder so that the side surfaces la and 1b of the core material 1 are in contact with the surface 22a.
  • the thin-walled cylinders 22 are also sized and arranged so that they come into contact with each other at the surface 22a. At the same time, a small hole should be provided so that gas can be sufficiently vented out.
  • the outfitting bracket (not shown) has a thin cylinder 2 inside a core made of core material 1. Reattach to the part where 2 is provided with adhesive, rivets or rivet bonding. n With this, in the structure using the honeycomb panel, the strength of the bracket joint at the joint with respect to the local out-of-plane load of the core can be improved.
  • the thin-walled cylinder 22 can be disposed only in a truly necessary part of the honeycomb panel 23, an increase in weight can be easily suppressed to the limit.
  • the thin cylinder 22 is formed of a thin plate, the cylindrical shape can be easily deformed in the cell of the core of the honeycomb panel and can be in surface contact with the side surface of the core material. It can be manufactured without the above restrictions.
  • a plurality of thin cylinders 22 are arranged in one cell, but one thin cylinder almost equal to the diameter of the cell may be arranged.
  • a polygonal shape for example, a rhombic thin hollow prism that divides a regular hexagon formed by combining core materials into three equal parts can be formed.
  • the honeycomb panel 24 of the present embodiment is a combination of the first embodiment and the fifth embodiment.
  • core materials 1 and 2 are manufactured in the same manner as in the previous embodiment.
  • the core materials 1 and 2 are disposed so that the flat portions 1 a and 2 a in the longitudinal direction are in contact with each other.
  • a thin cylinder 22 is arranged in a small core 5', and the core materials 1, 2, the strip 3, and the thin cylinder are provided.
  • the thin-walled cylinder 22 and the face plate 6 are brazed to each other to produce a honeycomb panel 24.
  • the thin-walled cylinder 22 is disposed in a portion where the out-of-plane load is particularly large even in the core material 2 whose size decreases when the core is formed.
  • the joining of the bracket (not shown) to the honeycomb panel 24 and the action of the local load are performed mainly at the portion where the thin cylinder 22 is provided.
  • the honeycomb panel 24 can be manufactured while minimizing the increase in weight when a concentrated out-of-plane load is applied over a wide area and locally larger than other general parts. it can.
  • the honeycomb panel 24 is described as being formed by combining the first embodiment and the fifth embodiment, but the first embodiment is performed according to the method of using the honeycomb panel, the magnitude of the load, and the operation state. From the examples, the fifth embodiment can be arbitrarily combined and manufactured. Thereby, even when a local out-of-plane load acts on the honeycomb panel, it is possible to provide a lightweight panel having high strength and reliability. Industrial applicability
  • part is improved. Further, in the honeycomb panel, since the core size can be increased in a general portion other than a portion where a local out-of-plane load is applied, an increase in the overall weight can be suppressed to a minimum.

Landscapes

  • Laminated Bodies (AREA)

Abstract

L'invention concerne un panneau à nid d'abeilles brasé dans lequel la résistance des âmes aux jonctions des attaches où la charge hors plan est appliquée est augmentée avec un poids réduit au minimum. On fabrique ledit panneau en prévoyant des plaques alvéolées à au moins deux types de tailles de zigzag et d'âmes au niveau des limites entre les deux types de plaques alvéolées de manière à former une section centrale, à assembler par brasage cette dernière, les plaques alvéolées, les âmes et une paire de plaques frontales de sorte que la charge hors plan soit appliquée sur les parties du panneau à nid d'abeilles où les alvéoles sont de petite taille. Ainsi, on augmente la résistance et la fiabilité pour la charge hors plan appliquée sur le panneau à nid d'abeilles, et on peut agrandir la taille de l'alvéole des parties autres que celles où la charge est appliquée de manière à minimiser l'augmentation de poids globale. Ce panneau à nid d'abeilles peut être utilisé en tant qu'élément constituant de la carrosserie de voitures rapides ou de buildings exposés à des charges de pression et des forces de cisaillement en flexion élevées.
PCT/JP1994/002211 1993-12-28 1994-12-26 Panneau a nid d'abeilles WO1995018014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5/334950 1993-12-28
JP33495093 1993-12-28

Publications (1)

Publication Number Publication Date
WO1995018014A1 true WO1995018014A1 (fr) 1995-07-06

Family

ID=18283055

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1994/002211 WO1995018014A1 (fr) 1993-12-28 1994-12-26 Panneau a nid d'abeilles

Country Status (1)

Country Link
WO (1) WO1995018014A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19806484A1 (de) * 1998-02-17 1999-08-26 Abb Daimler Benz Transp Verbundteil und Verfahren zu dessen Herstellung
EP2080612B1 (fr) 2008-01-19 2018-06-06 The Boeing Company Distribution des points de charge de panneaux en nid d'abeille
JP2019199051A (ja) * 2018-05-18 2019-11-21 日本電気株式会社 ラティス構造および筐体

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62214947A (ja) * 1986-03-17 1987-09-21 マツダ株式会社 ハニカムパネル構造体の製造法
JPS63260432A (ja) * 1987-04-17 1988-10-27 株式会社　ボンパツク ハニカム板の製造方法
JPH02171231A (ja) * 1988-12-23 1990-07-02 Showa Aircraft Ind Co Ltd ハニカム構造体
JPH0486252A (ja) * 1990-07-31 1992-03-18 Showa Aircraft Ind Co Ltd ハニカム材

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62214947A (ja) * 1986-03-17 1987-09-21 マツダ株式会社 ハニカムパネル構造体の製造法
JPS63260432A (ja) * 1987-04-17 1988-10-27 株式会社　ボンパツク ハニカム板の製造方法
JPH02171231A (ja) * 1988-12-23 1990-07-02 Showa Aircraft Ind Co Ltd ハニカム構造体
JPH0486252A (ja) * 1990-07-31 1992-03-18 Showa Aircraft Ind Co Ltd ハニカム材

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MICROFILM OF THE SPECIFICATION AND DRAWINGS ANNEXED TO THE WRITTEN APPLICATION OF JAPANESE UTILITY MODEL, Application No. 130449/1977 (Laid-open No. 57027/1979) (MITSUBISHI ELECTRIC CORP.), 20 April 1979, pages 2-3. *
MICROFILM OF THE SPECIFICATION AND DRAWINGS ANNEXED TO THE WRITTEN APPLICATION OF JAPANESE UTILITY MODEL, Application No. 33013/1986 (Laid-open No. 144625/1987) (BRIDGESTONE CORP.), page 15. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19806484A1 (de) * 1998-02-17 1999-08-26 Abb Daimler Benz Transp Verbundteil und Verfahren zu dessen Herstellung
US6387469B1 (en) 1998-02-17 2002-05-14 Daimlerchrysler Rail Systems Gmbh Composite part and method for producing the same
EP2080612B1 (fr) 2008-01-19 2018-06-06 The Boeing Company Distribution des points de charge de panneaux en nid d'abeille
JP2019199051A (ja) * 2018-05-18 2019-11-21 日本電気株式会社 ラティス構造および筐体

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