CN104205208B - The splicing of bending-type acoustic honeycomb - Google Patents
The splicing of bending-type acoustic honeycomb Download PDFInfo
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- CN104205208B CN104205208B CN201380011684.9A CN201380011684A CN104205208B CN 104205208 B CN104205208 B CN 104205208B CN 201380011684 A CN201380011684 A CN 201380011684A CN 104205208 B CN104205208 B CN 104205208B
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- honeycomb
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Abstract
Honeycomb section utilizes joint member to be bonded together, and described joint member is formed by the gluing part of honeycomb fashion seam supporting member or even segmentation seam supporting member carrying.Joint member is useful especially for being stitched together by the bending-type comprising baffle honeycomb section.Bending-type acoustic honeycomb section is spliced or by seam together to form engine nacelle and other acoustic damping structure.
Description
Technical field
The each sidepiece that present invention relates in general to two or more acoustic honeycomb sections is joined together to form splicing
Acoustic honeycomb.More specifically, the present invention is directed to provide the joint member of improvement between acoustic honeycomb section, particularly many
Individual honeycomb section is joined together to form in the case of acoustic honeycomb that is wavy or that bend.
The present invention is directed to the acoustic honeycomb section seam of bending or be particularly effective for being stitched together, described curved
Bent acoustic honeycomb section seam is together to form engine nacelle and other acoustic damping structure.
Background technology
By it is widely recognized that the best way tackling the excessive noise produced by particular source is to process in source to make an uproar
Sound.This typically realizes by Acoustic processing apparatus adds to the structure at noise source.One especially problematic noise source
It it is the jet engine for propulsion aircraft.Acoustic processing apparatus is typically incorporated in engine intake, cabin, Yi Jipai
In depressed structure.These Acoustic processing apparatus include that acoustic resonator, described acoustic resonator comprise the thinnest acoustical material
Or grid, described acoustical material or grid have the millions of hole producing acoustic impedance to the acoustic energy produced by electromotor.
Engineer faced by basic problem be that how the acoustical material that these are thin and flexible is added to jet engine and around
To provide desired noise attentuation in the structural detail in cabin.
Honeycomb texture has been the popular materials used in aircraft and spacecraft, because it is relatively solid and light weight
, and each honeycomb cells can act as acoustic resonator.For acoustic applications scheme, target has been set in some way to
Thin acoustical material is attached in honeycomb texture, so that honeycomb cells is closed or covers.Utilize acoustical material to be closed room to produce
The acoustic impedance that raw resonator is based on.
Acoustic pattern honeycomb texture is formed the structure of the complicated bend needed for engine nacelle be major design consider because of
Element.It is very difficult in the case of changing honeycomb texture and acoustical behavior thereof indistinctively single honeycomb texture is formed electromotor
Cabin.Therefore, the most anfractuose section or slight curving acoustic honeycomb section are typically spliced together, to form tubular machine
Cabin structure.
The each sidepiece being spliced together of honeycomb texture is protruded locular wall by many and forms, and described protrusion locular wall is general
It is referred to as " dog-ear " (dog ear).The locular wall that protrudes constituting dog-ear has the end presenting relatively smaller surface area, in order to will
Two honeycomb sections are bonded together.Additionally, be very difficult to position honeycomb section, so that the folding on relative honeycomb section
The end at angle is in one line and sufficiently close together for bonding.
Preceding bonding/Bonding Problem is the most by filling jointing line and the local making jointing line widen with gluing part
Room solves.Gluing part is for being completely filled with all open spaces along jointing line, to provide solid and firm bonding.For
AEROSPACE APPLICATION scheme, gluing part is usually the gluing part of foam type, so that the weight of joint member is maintained at minimum.Fill with gluing part
The advantage of the room, local of jointing line and surrounding is, the surface area that can be used for bonding of honeycomb texture is much larger than by the end of dog-ear
The surface area provided.Firm bonding realizes due to the biggest surface area of honeycomb texture, the biggest described table
Area interacts with gluing part to form joint member.Additionally, the gluing part of foam type can be used in bending and/or sinuous honeybee
Nest sidepiece is bonded together.Owing to bonding only need to realize, therefore along the dog-ear of jointing line by filling jointing line with gluing part
Can change in the case of the overall performance not affecting joint member with shape and the orientation of room, local.
Adhesive type jointing line is used really to have shortcoming.Such as, the acoustical behavior of the honeycomb cells filled with gluing part is by aobvious
Write ground change or damage.Solid adhesive type joint member is often wide and relatively heavy, and this is for using maximum weight as weight
It is less desirable for the AEROSPACE APPLICATION scheme of the design consideration wanted.Similarly, the intensity of joint member can depend on connecing
The orientation of the dog-ear in the opposite side of seam part changes.Additionally, relatively wide adhesive type joint member be often rigidity also
And bending may be limited or otherwise the honeycomb texture of overall adhesive is shaped as warp architecture (such as engine nacelle)
Ability.
Desirably providing a kind of by honeycomb texture splicing or seam mode together, it includes by as above real
Advantage in terms of the bonding strength that heart adhesive type joint member provides, and avoid relevant acoustical behavior, joint member weight and seam
The shortcoming of part rigidity.
Summary of the invention
According to the present invention, it was found that when flexible adhesive type supporting member is used in combination with gluing part, it is possible at cell
Narrow and firm joint member is provided between Duan.The joint member being supported be significantly thinner than previous foam type adhesive type joint member and
Can be used, regardless of whether whether the projecting ends of honeycomb texture aligns along joint member.Relatively thin joint member provided by the present invention
Make any minimum interference produced with the acoustical behavior of spliced honeycomb texture.Additionally, the present invention be supported connect
Seam part is flexible, enables them to for curved honeycomb structure being bonded together.Formed between honeycomb section and wriggle
Yan joint member is also possible.
The spliced honeycomb texture of the present invention at least includes the first honeycomb section and the second honeycomb section, described first honeycomb
Section and the second honeycomb section are bonded together along their sidepiece.Each honeycomb section has the first edge and the second edge.
Each honeycomb section is included between its first and second edge the multiple walls extended.Wall limits multiple honeycomb cells, wherein honeycomb
Each in room have be perpendicular to cross-sectional area that honeycomb wall measures and by the first and second edges of honeycomb texture between
The degree of depth that distance limits.Each honeycomb section includes at least one sidepiece with the honeycomb wall of multiple protrusion, each honeycomb wall
Having wall end, described wall end has extension between thickness and the first each edge and the second edge in honeycomb section
Length.
As inventive feature, two honeycomb sections utilize the joint member between the sidepiece being positioned at two honeycomb sections
It is bonded together.Joint member has the degree of depth, the thickness and along honeybee extended between the first and second edges of honeycomb section
The seam length that the sidepiece of nest section extends.Joint member is by the gluing part of the end for being adhered to protrusion honeycomb wall with for glue
The supporting member composition of viscous part.Purposes for the supporting member of gluing part be found with provide not with gluing part along joint member to room
In the case of filling, honeycomb section is desirably bonded together.
As the special feature of the present invention, the supporting member for gluing part is relatively thin honeycomb fashion seam supporting member.
Honeycomb fashion seam supporting member includes the first edge of the sidepiece location of a neighbouring honeycomb section and adjacent to another honeycomb section
Second edge of sidepiece location.Honeycomb fashion seam supporting member is included between the first and second edges of honeycomb fashion seam supporting member
The multiple walls extended.Wall forms multiple seam rooms of the room being perpendicular to honeycomb section.It is indoor that gluing part is positioned at seam, so that
Gluing part is adhered to seam room and the wall of the sidepiece protrusion from honeycomb section.
As another special characteristic of the present invention, the supporting member for gluing part is made up of multiple seam supporting members
Even segmentation seam supporting member, each seam supporting member has first end, the second end, the sidepiece of a neighbouring honeycomb section
First sidepiece of location and the second sidepiece of the sidepiece location of another honeycomb section neighbouring.Gluing part is positioned at seam supporting member
Two sidepieces on so that gluing part is adhered to the protrusion dog-ear of seam supporting member and honeycomb section.In order to be connect
Seam part provides flexibility, it is provided that flexible joint, the first end of a seam supporting member is connected to another by described flexible joint
The second end of individual seam supporting member.Such chain type structure is found in the firm and flexible honeycomb texture of offer and connects
Seam part aspect is efficient.
The present invention is directed to one or more joint member and overall spliced honeycomb texture.Present invention is alternatively directed to for by honeybee
The method that nest section is stitched together.Further comprises for section by seam together before or after by honeycomb section
Method that is moulding or that be formed as desired structure.The joint member of the present invention is for together curved to be formed by acoustic honeycomb section seam
It is to have especially for bent acoustic honeycomb (those acoustic honeycomb such as found in jet engine cabin)
?.
Above-mentioned and the many further feature of the present invention and thing followed advantage will when accompanying drawing is combined with reference to following
Detailed description is easier to understand.
Accompanying drawing explanation
Fig. 1 is shown according to two the honeycomb sections being spliced or being bonded together of the present invention.In said embodiment,
Align at seam crossing in the end of the sidepiece along honeycomb section of the honeycomb locular wall (dog-ear) protruded.
Fig. 2 illustrates that embodiments of the present invention, two of which honeycomb section are spliced together, so that the honeybee protruded
Do not align at seam crossing in the end of nest locular wall.
Fig. 3 illustrates a part for another joint member, wherein the honeycomb locular wall of the protrusion on each sidepiece of joint member
Do not line up.
Fig. 4 is to illustrate being stitched together in the honeycomb texture seam utilizing the foundation present invention of two honeycomb sections bent
Decomposition view before.
How Fig. 5 describes honeycomb fashion seam supporting member from bigger honeycomb texture excision.
Fig. 6 illustrates that honeycomb fashion seam supporting member is bent the process being loaded with gluing part subsequently.
Fig. 7 is the sectional view of Fig. 6, it is shown that be loaded with the side view of the honeycomb fashion seam supporting member of gluing part.
Fig. 8 is shown according to the exemplary even segmentation seam supporting member of the present invention.
Fig. 9 is the sectional view of the company's segmentation seam supporting member that figure 8 illustrates, it is shown that the flexible joint between two company's sections
Details.
Figure 10 is the part view before assembly of acoustic panels, wherein panel include three honeycomb texture sections and
Two joint members.Exemplary honeycomb structure is shown, described exemplary honeycomb structure can be spliced together according to the present invention and/
Or it is used as honeycomb fashion seam supporting member.
Figure 11 illustrates the acoustic panels of the bending including acoustic honeycomb section, and described acoustic honeycomb section is according to quilt of the present invention
Splicing or seam are together.
Figure 12 is shown according to the Alternative exemplary honeycomb fashion seam supporting member of the present invention.Seam supporting member is shown as near folding
The end at angle, in order to illustrate the relative size relative to the end of dog-ear of the honeycomb cells in seam supporting member.
Figure 13 is shown according to the additional Alternative exemplary honeycomb fashion seam supporting member of the present invention.Seam supporting member is shown as
End near dog-ear, in order to illustrate the relative size relative to the end of dog-ear of the honeycomb cells in seam supporting member.
Figure 14 is the detailed view of the wall (dog-ear) of the sidepiece protrusion of from the honeycomb section that figure 1 illustrates.
Detailed description of the invention
The present invention may be used for various complicated honeycomb texture type and shape seams, splices or be connected to one
Rise.Honeycomb texture can be made up of any suitable material, as long as material can be adapted to stick with glue part bonding.Honeycomb texture (dog-ear)
Notching edge should impulse-free robustness and straight (in 90 ° with surface), and baffle must also impulse-free robustness and straight.Foundation
The joint member of the present invention (is such as used for jet-propelled in the structure to form bending that is stitched together by the section of acoustic honeycomb
The cabin of electromotor) aspect is useful especially.Detailed description below is principally dedicated to splice one acoustic honeycomb
Rise.It should be appreciated that described joint member can be also used for various other type of acoustics and non-acoustic honeycomb
Section is stitched together, the most firmly, lightweight and relatively thin joint member be expect.
The acoustic honeycomb being spliced according to the present invention the most in FIG 10 at illustrate.Tied by the honeycomb of seam
Structure 10 includes the first honeycomb section 12 and the second honeycomb section 14.Honeycomb section 12 and 14 can manufacture honeycomb texture face by being used for
Any conventional material of plate is made, and described material includes metal, pottery and composite.Illustrative metal includes aluminum and aluminum
Alloy.Exemplary composite material includes various groups of glass fibre, Nomex and graphite or ceramic fibre and suitable matrix resin
Close.Example base resin includes thermosetting or thermoplastic resin, and wherein thermosetting resin may or may not be with thermoplastic resin
Fat is reinforced together.
First honeycomb section 12 has the first edge 16 that will position, and the second edge 18 near noise source.The
One honeycomb section 12 includes wall 20, and described wall extends to limit multiple room 22 between two edges 16 and 18.Every in room 22
The individual equidistant degree of depth (also referred to as core thickness) having between two edges 16 and 18.Each room 22 also has vertically
In the cross-sectional area that locular wall 20 is measured.First honeycomb section 12 has the honeycomb wall or the first of dog-ear 26 including multiple protrusion
Honeycomb sidepiece 24, one in the honeycomb wall of the plurality of protrusion or dog-ear is shown specifically in fig. 14.The wall 26 of each protrusion
Having wall end 28, described wall end has the length (L) extended between the first edge 16 and the second edge 18.Wall end 28
Also there is width or thickness (T).
Second honeycomb section 14 also has the first edge 30 and the second edge 32.Second honeycomb section 14 includes wall 34, institute
State wall to extend to limit multiple room 36 between two edges 30 and 32.Each in room 36 have with two edges 30 and 32 it
Between the equidistant degree of depth.Each room 36 also has and is perpendicular to the cross-sectional area that locular wall 34 is measured.Second honeycomb section 14
There is the second honeycomb sidepiece 38 of the honeycomb wall 40 including multiple protrusion.Each in the wall 40 protruded also have with as at Figure 14
In the most moulding wall end, the wall end 28 of honeycomb section 12 that is shown specifically.Therefore, the wall 40 of each protrusion also has
Wall end, described wall end has width or thickness (T) and extension between the first edge 30 and the second edge 32
Length (L).
As illustrated in fig. 1, the sidepiece 24 and 38 of honeycomb section 12 and 14 is stitched together by joint member 42 respectively, institute
State joint member to be made up of the gluing part according to the present invention and the supporting member for gluing part.Joint member 42 has at honeycomb section
The degree of depth extended between first edge (16 and 30) and second edge (18 and 32) of honeycomb section (12 and 14) of (12 and 14).
Joint member 42 also has thickness and the seam length extended along the first and second honeycomb sidepieces 24 and 38.The honeybee that figure 1 illustrates
Two sections of nest structure are oriented to align at joint member 42 in the end of the honeycomb wall 26 and 40 protruded.
As inventive feature, as illustrated in fig. 1, it is not necessary to the honeycomb wall (dog-ear) of protrusion strides across joint member 42
Alignment.The exemplary spliced honeycomb texture substituted is not it is shown in fig. 2, the honeycomb wall wherein protruded spans across adhesive type joint member
Alignment.In fig. 2, the respective side portion of the first honeycomb section 44 and the second honeycomb section 46 is by being supported according to the present invention
The mode of adhesive type joint member 48 be bonded together.The opposition side being positioned at joint member 48 of the honeycomb wall 50 and 52 protruded
End in portion does not lines up.Being found that, the adhesive type joint member 48 being supported is sufficiently tight so that it need not make
The locular wall protruded aligns at seam intersection.
Another spliced honeycomb texture of non-alignment formula figure 3 illustrates, and illustrated therein is another structure of non-alignment formula dog-ear
Make.In figure 3, the respective side portion of the first honeycomb section 54 and the second honeycomb section 56 is by being supported according to the present invention
The mode of adhesive type joint member 58 is bonded together.The opposite side being positioned at joint member 58 of the honeycomb wall 60 and 62 protruded
On end do not line up.Again, being found that, the adhesive type joint member 58 being supported is sufficiently tight, the most not
The locular wall that must make protrusion aligns at seam intersection.
The adhesive type joint member being supported of the present invention is particularly suitable for being stitched together acoustic honeycomb section.Seam
Part is that relative narrower and not producing the acoustical behavior of the acoustical chamber positioned along joint member interferes significantly with.Acoustic honeycomb
One or more baffles including great majority, if not all honeycomb cells inner position.Although any kind of baffle is all
Can use, but it is preferred that in United States Patent (USP) 7,434,659,7,510,052 and 7, the type described in detail in 854,298
Baffle.The baffle of these types is preferably as it is relative flexibility and bends (non-flat in honeycomb texture formation
Face) structure (such as honeycomb section) time keep the acoustic absorption performance of described baffle, described honeycomb section is spliced together
To form jet engine cabin.
Acoustic septum cap the most in FIG 64 at and in figs 2 and 3 66 and 68 at illustrate.It is generally used for acoustic honeycomb
Any acoustical material of structure may be used for forming acoustic septum cap.Acoustical material is generally set relatively thin sheet material, institute
State sheet material be perforation, porous or open mesh fabric, described mesh fabric is designed to provide noise attentuation.Various materials
Perforation and the porous sheet of material (metal, pottery and plastics) can be used.In one preferred embodiment, acoustics
Material is the open mesh fabric being woven into by woven monofilament.Fiber can be made up of glass, carbon, pottery or polymer.By
Polyamide, polyester, polytrifluorochloroethylene (ECTFE), ethylene-tetrafluoroethylene copolymer (ETFE), politef (PTFE), poly-
Diphenyl sulfide (PPS), fluorinated ethylene-propylene copolymer (FEP), polyether-ether-ketone (PEEK), polyamide 6 (nylon, 6PA6), Yi Jiju
The Monofilament polymer fibers that amide 12 (nylon 12, PA12) is made is only several embodiment.The open mesh being made up of PEEK
Fabric is preferred for high temperature application scheme.Open mesh acoustic fiber can obtain from various commercial channel
?.Such as, the sheet material of open mesh acoustic fiber can be with trade mark SEFA RPETEX, SEFA RNITEX and SEFA
RPEEKTEX is from SEFAR America Inc. (address: Buffalo Division Headquarters 111 Calumet
Street Depew, NY14043) obtain.
The solid sheet of acoustical material can also be used to form acoustic septum cap.In this case, perforation is at acoustic septum cap
Formed in solid sheet material before or after being placed in honeycomb cells.Although more than assert the metal of type, pottery, with
And plastics may be used for manufacturing the baffle of perforation, but it is preferred that acoustical material is PEEK or is suitable to high temperature application scheme
Similar chemical rssistant polymer material.The sheet material of PEEK or film can obtain from multiple commercial channel, such as Victrex
USA (address: Greenville, South Carolina), it is with VICTREXPEEKTMThe trade mark of polymer produces PEEK's
Sheet material.About the additional detail of acoustic septum cap and the use in acoustic honeycomb thereof at U.S. Patent application 13/227,775
There is provided in 13/279,484.
The joint member of the present invention includes gluing part and the supporting member for gluing part.Gluing part can be general and honeycomb knot
Any suitable gluing part that the manufacture of structure panel is used in combination.For acoustic septum cap being adhered to the same gluing of honeycomb texture
Part is substantially also suitable as the gluing part of seam.Preferred gluing part is included in gluing part stable under high temperature (300-400 °F).Show
The gluing part of example include epoxy resin, acrylic resin, phenolic resin, cyanoacrylate, BMI, polyamide-
Acid imide and polyimides.The gluing part of polyamide-imides is particularly preferred.
Supporting member for gluing part should be relatively thin structure, and described structure is sufficiently tight, so that
Obtain it and additional strength exceeding and being higher than the intensity provided alone by gluing part is provided to joint member.Supporting member is the most enough
Flexible, mate so that it can be bent or bend with the sidepiece being spliced together with the honeycomb section of bending.Weight
, overall joint member should be the narrowest or thin, in order to makes the minimum interference of the acoustical behavior to honeycomb cells.
Exemplary seam part 42,48 and 58 shown in Fig. 1,2 and 3 includes that the honeycomb fashion filled with the gluing part of seam connects
Seam supporting member.In the diagram, the position before exemplary seam part 42 is shown in and is adhered to the honeycomb section 12 and 14 of bending
Put.Joint member 42 includes honeycomb fashion supporting structure 70 and gluing part 72.Honeycomb fashion seam supporting member 70 can be considered have neighbour
First edge 76 of the sidepiece location of nearly honeycomb section 12 and the second edge 78 of the sidepiece location of neighbouring honeycomb section 14.Honeycomb
The wall of formula seam supporting member 70 extends between the first edge 76 and the second edge 78, in order to limit multiple seam room 80, wherein
Each in described seam room has and is perpendicular to the cross-sectional area that the wall of honeycomb texture is measured.The thickness of honeycomb fashion seam supporting member
Degree (T) is limited by the distance between described first edge 76 and second edge 78 of honeycomb fashion seam supporting member 70.
Honeycomb fashion seam supporting member 70 is preferably by tying honeycomb layer from bigger honeycomb as shown in fig. 5
Structure 74 cuts or cuts off and makes.For formed seam supporting member 70 honeycomb texture cut into slices 70a (Fig. 4) include corresponding to more than
The reference described, wherein " a " is added to each number with 70a and final seam supporting member 70 district of being cut into slices by honeycomb texture
Separately, described final seam supporting member includes the honeycomb cells filled with gluing part.
As shown in Figure 6, honeycomb texture section 70a is formed and matches with the curve of the honeycomb section together with seam
Curved shape 70b.The honeycomb texture section 70b of bending then fills with gluing part and is used for being adhered to two cells to be formed
The final joint member 42 of section.The side cross-sectional view of the seam supporting member 70 being mounted with gluing part 72 figure 7 illustrates.Seam supporting member
70 are preferably from 0.01 inch to 0.15 inch.As at 72 in Fig. 7 shown in, gluing part is through seam supporting member 70
Protrude.Gluing part typically will protrude 0.001 inch to 0.02 inch range from arbitrary sidepiece of seam supporting member.
Honeycomb fashion seam support structure has been preferably loaded with desired gluing part, so that gluing part generally fills knot
Being had family and being coated the edge of seam support structure in structure.Gluing part can somewhat extend past in the case of desired
The edge of honeycomb fashion seam supporting member, to guarantee to be completely covered the end of the dog-ear being positioned on the honeycomb section being bonded together
Portion.But, make honeycomb fashion seam supporting member overload should be avoided by because this produce waste gluing part and may cause with
Unnecessary gluing part surprisingly stops the room of neighbouring joint member.
The stickiness of gluing part should make gluing part not be stably and not with the relative chamber size of seam support structure
Flow from structure.In the case of desired, release paper can be placed on two sidepieces of support structure that gluing part is filled, with
Just assist to be held in place gluing part.It is removed in the release paper short time before joint member is adhered to honeycomb section.
The cross-sectional configuration or the shape that form the honeycomb cells of honeycomb fashion seam supporting member can depend on multiple because usually changing
Becoming, the plurality of factor includes size and other performance and the size of joint member of the honeycomb section being spliced and expects soft
Property.Conventional hexagonal cell chamber cross-section (the such as room 80 shown in seam supporting member 70 and 70a) is suitable to multiple application side
Case.In the case of desired, other cross-sectional configuration various can be used.Such as, illustrate at 110 in fig. 12
Honeycomb fashion seam support structure be the shape of cross section feelings from conventional hex shape remodeling of honeycomb fashion seam supporting member
Condition.
Seam support structure 110 is shown as near dog-ear 26, in order to provide honeycomb fashion seam supporting member room relative to folding
The expression of the preferred size of angular length degree.As can be seen, the size of the room of honeycomb fashion seam supporting member 110 is set, so that
Obtain eight rooms and be presented for length (L) bonding along dog-ear.As example, the dog-ear with 1 inchage needs to include tool
There is the seam supporting member 110 of the room of 1/8 inch height.There is connecing of such size relationship relative to dog-ear end wall
Seam supporting member room is preferably as described seam supporting member room provides joint member intensity and the optimum combination of gluing part holding.
Another exemplary honeycomb fashion seam support structure in fig. 13 111 at illustrate.Seam supporting member 111 transversal
It is useful in the case of flexibility greatly that face shape has in terms of expectation seam supporting member.Other chamber cross-section shape
Can use to meet the particular design target of shape, size and expectation strength relative to joint member.Seam supporting member is tied
Structure 111 also illustrates that near dog-ear 26, in order to provide the honeycomb fashion seam supporting member room preferred size relative to dog-ear length
Represent.The size of seam supporting member 111 is also set so that eight rooms to be presented for along the length of dog-ear and bonds.Work as honeycomb
Structure is from 1/2 inch to 2 inch time, is preferably presented from 5 to 20 rooms, in order to bond along dog-ear length.
The joint member of the foundation present invention is by being simply sandwiched in two formation by the honeycomb fashion seam supporting member of gluing loading
The acoustic honeycomb section being spliced together between and apply pressure to guarantee two sidepieces and the honeycomb section of joint member
Between uniform contact formed.Heat is applied such that the solidification of gluing part and forms final joint member.
The joint member of the honeycomb texture of the present invention may be used for being bonded together the honeycomb section of plane.But, honeycomb
The joint member of structure for will such as figure 4 illustrates in L/D plane bending acoustic honeycomb section seam together for
It is useful especially.Honeycomb section can be spliced together and be bent to form the honeycomb texture of bending subsequently.But,
This needs the combination of gluing part and honeycomb fashion supporting structure to make the joint member obtained be sufficiently flexible, and described joint member can
It is bent into desired curved shape.Preferably, after joint member has been formed desired curved shape, this joint member is executed
It is added to two honeycomb sections.The splicing of the honeycomb section of prebuckling is preferably as honeycomb fashion seam support structure is at glue
It is more flexible before the solidification of viscous part or solidification.
Can use honeycomb section that the joint member of the present invention is stitched together can, wall thickness long-pending at chamber cross-section,
And degree of depth aspect is very different.Typical acoustic honeycomb section will have cross-sectional area from 0.05 square inch to 1
Room in the scope of square inch or bigger.The wall thickness of cellular structural material typically will be from 0.001 to 0.050 inch
In the range of.The degree of depth (core thickness) of room is in 0.25 to 3 inches or longer scope.Example cellular section will have six
Shape room, limit, described hexagon room have about 0.1 to 0.5 square inch cross-sectional area, at 0.025 to 0.05 inch
Wall thickness and in the degree of depth of 1.0 to 2.0 inch.
Will have from 0.25 to 3 inches for having the wall end of the protrusion of the honeycomb texture of areas listed above size
Or longer length (L), described length is corresponding to the degree of depth of honeycomb texture core.Protrude wall corresponding to cellular structural material
The thickness (T) of thickness would is that from 0.001 inch to 0.050 inch.The size of seam room is chosen, so that multiple seam room
The length contact wall end illustrated in figs. 12 and 13 along wall end.Typical seam chamber size is from 0.062 to 0.187 inch
In the range of.This provides the more multicell EDGE CONTACT for dog-ear, and less room aids in indoor and stablizes tacky film.
Seam room can be altered to realize the design of desired joint member relative to the relative size of the length of wall end
Target.Generally, less seam room provides larger surface area relative to manufacture with seam room bonding address along wall tip lengths
More firmly and the more joint member of rigidity.
A part for substituting adhesive type supporting member in figs. 8 and 9 82 at illustrate.Adhesive type supporting member 82 is by seam
Company's segmentation seam supporting member of supporting member 84,86 and 88 composition.Only three sections seam supporting members are shown for illustrative purpose.
Typical joint member will be made up of the most multilinked supporting member.Each supporting member has first end 90 and the second end
92.Described supporting member also has the first sidepiece 94 of the sidepiece location of a neighbouring honeycomb section and another honeycomb section neighbouring
Sidepiece location the second sidepiece 96.Flexible joint 98 is provided for connecting the first end 90 of a seam supporting member
The second end 92 to another seam supporting member.The flexible joint of number of different types is possible.Increase minimum weight
Joint is preferred.Preferably flexible joint figure 7 illustrates, and wherein seam supporting member 88 has round flange 100, described
Round flange is formed in the opening 102 of seam supporting member 86 with by hinged for two supporting members.Such
Flexibly connect is preferably as it increases the weight of minimum (if any) to seam supporting member.
The gluing part of seam is positioned on two sidepieces of adhesive type supporting member 82, and supported gluing part is used subsequently to
In the way of identical with the gluing part supported by honeycomb fashion seam as above, honeycomb section is stitched together.Gluing part
Amount should be restricted at dog-ear, provide some gluing part chamfering forms to form the amount needed for firm bonding.Too much
The use of gluing part should be avoided by, because it increases weight to joint member.In some cases, it can be possible to it is desirable that, only will
Gluing part is applied to those parts of the contact dog-ear of adhesive type supporting member.But, this comprises many at the sidepiece of honeycomb texture
It is probably unpractiaca during the dog-ear of tight spacing.In these cases it is preferred to, the sidepiece of adhesive type supporting member is substantially
On by gluing part layer cover
Can be any identical with for manufacturing the material of honeycomb texture for manufacturing the material of adhesive type supporting member 82
Material.Described material should be sufficiently thin, so as to is curved to provide some along T direction flexible to joint member.Preferably
It is that adhesive type support member material is identical with the material used in manufacturing honeycomb section.The thickness of described material can change, its
In preferably, described material is the thinnest and still provides the raising in terms of joint member intensity.Preferably exemplary materials is thick
Degree will match with the thickness of the honeycomb wall being spliced together.Exemplary materials for acoustic honeycomb be from
The aluminum of 0.001 to 0.010 inch or composite.The preferred thickness of the gluing part on arbitrary sidepiece of link seam supporting member
Degree should be about 0.010 to 0.075 inch, every side.
The exemplary acoustic honeycomb being spliced figure 10 illustrates, wherein three honeycomb sections 104,106 and
108 are stitched together along two joint members 130 and 132.Honeycomb section all includes acoustic septum cap 134.Spliced honeycomb section quilt
It is clipped between solid panels or facesheet 136 and perforated panel or facesheet 138.Facesheet uses conventional panels manufacturing process
It is adhered to the edge of spliced honeycomb texture.
Bending spliced honeycomb texture acoustic panels or cabin section in fig. 11 140 at illustrate.Jet-propelled
Motivation core or other noise source schematically show at 142.The acoustic panels of bending includes outer solid facesheet 144 He
Internal porose facesheet 146.Various honeycomb sections utilize the joint member 148,150 and 152 of vertical orientation to be stitched together.Connect
Seam part 154 is horizontally extending between joint member 148 and 150.The bending acoustic honeycomb section being spliced be from 0.75 inch to
1.5 inchs, wherein joint member is to 0.20 inch from 0.02 inch.As inventive feature, make to stick with glue part and glue
The thinnest joint member that the combination of viscous formula supporting member is made is found to provide by suitable for honeycomb section seam together, and
Meanwhile the acoustical behavior for acoustic panels or cabin produces minimum influence.
Therefore, in the case of having described that the illustrative embodiments of the present invention, those of skill in the art should note
Anticipate, merely illustrative in disclosure, other alternative various, adapt to and revise to enter within the scope of the invention
OK.Therefore, the present invention is not limited by above-mentioned embodiment, but is limited only by the following claims.
Claims (16)
1. a spliced honeycomb texture, comprising:
First honeycomb section, described first honeycomb section includes that the first edge and the second edge, described first honeycomb section also wrap
Including the multiple walls extended between described first and second edges, described wall limits multiple honeycomb cells, in wherein said honeycomb cells
Each have be perpendicular to cross-sectional area that described wall measures and limited by the distance between described first and second edges
The degree of depth, described first honeycomb section also includes that the first honeycomb sidepiece, described first honeycomb sidepiece include the honeycomb wall of multiple protrusion,
Each honeycomb wall includes that wall end, described wall end have thickness and prolong between described first edge and described second edge
The length stretched；
Second honeycomb section, described second honeycomb section includes that the first edge and the second edge, described second honeycomb section also wrap
Including the multiple walls extended between described first and second edges, described wall limits multiple honeycomb cells, in wherein said honeycomb cells
Each have be perpendicular to cross-sectional area that described wall measures and limited by the distance between described first and second edges
The degree of depth, described second honeycomb section also includes that the second honeycomb sidepiece, described second honeycomb sidepiece include the honeycomb wall of multiple protrusion,
Each honeycomb wall includes that wall end, described wall end have thickness and prolong between described first edge and described second edge
The length stretched；And
Joint member, described joint member is positioned between described first honeycomb section and described second honeycomb section with by described first
Honeycomb sidepiece is adhesively adhered to described second honeycomb sidepiece, and described joint member has at described first and second honeycomb sections
The degree of depth, thickness and the seam length along described first and second sidepieces extensions extended between described first and second edges,
Described joint member includes the gluing part of the wall end for being adhered to described first and second honeycomb sidepieces and for described gluing
The supporting member of part,
Wherein said supporting member is honeycomb fashion seam supporting member, and described honeycomb fashion seam supporting member includes neighbouring described first honeycomb
First edge of sidepiece location and the second edge of neighbouring described second honeycomb sidepiece location, described honeycomb fashion seam supporting member is also
Being included between described first and second edges of described honeycomb fashion seam supporting member the multiple walls extended, described wall limits multiple
Seam room, each in wherein said seam room has and is perpendicular to cross-sectional area that described wall measures and by described first and
The thickness that distance between two edges limits, wherein said gluing part is positioned in described seam room.
Spliced honeycomb texture the most according to claim 1, wherein said honeycomb fashion seam supporting member has and is positioned at institute
State the top between the first edge of the first and second honeycomb sections and be positioned at described first and second honeycomb sections
Bottom margin between second edge, described top and/or the bottom margin of wherein said honeycomb fashion seam supporting member are
Bending.
Spliced honeycomb texture the most according to claim 2, wherein said first and second honeycomb sidepieces are bendings, from
And make described joint member form arc.
Spliced honeycomb texture the most according to claim 1, wherein said first and second honeycomb sections include being positioned at
Baffle in described honeycomb cells.
Spliced honeycomb texture the most according to claim 4, wherein said baffle includes acoustic septum cap, described baffle
Plug is adhesively adhered to the wall of described honeycomb cells.
Spliced honeycomb texture the most according to claim 1, the thickness of wherein said joint member be from 0.01 inch to
0.20 inch.
7. an engine nacelle, it includes spliced honeycomb texture according to claim 4.
8. a jet engine, it includes engine nacelle according to claim 7.
9., for the method being stitched together by honeycomb section, described method comprises the steps:
The first honeycomb section, described first honeycomb section is provided to include the first edge and the second edge, described first honeycomb section
Being additionally included between described first and second edges the multiple walls extended, described wall limits multiple honeycomb cells, wherein said honeycomb
Each in room has and is perpendicular to cross-sectional area that described wall measures and is limited by the distance between described first and second edges
The fixed degree of depth, described first honeycomb section also includes that the first honeycomb sidepiece, described first honeycomb sidepiece include the honeybee of multiple protrusion
Nest wall, each honeycomb wall includes that wall end, described wall end have thickness and at described first edge and described second edge
Between extend length；
The second honeycomb section, described second honeycomb section is provided to include the first edge and the second edge, described second honeycomb section
Being additionally included between described first and second edges the multiple walls extended, described wall limits multiple honeycomb cells, wherein said honeycomb
Each in room has and is perpendicular to cross-sectional area that described wall measures and is limited by the distance between described first and second edges
The fixed degree of depth, described second honeycomb section also includes that the second honeycomb sidepiece, described second honeycomb sidepiece include the honeybee of multiple protrusion
Nest wall, each honeycomb wall includes that wall end, described wall end have thickness and at described first edge and described second edge
Between extend length；And
Forming joint member, described joint member is positioned between described first honeycomb section and described second honeycomb section with by described
First honeycomb sidepiece is adhesively adhered to described second honeycomb sidepiece, and described joint member has at described first and second cells
The degree of depth, thickness and the seam along described first and second sidepieces extensions extended between described first and second edges of section
Length, described joint member includes the gluing part of the wall end for being adhered to described first and second honeycomb sidepieces and for described
The supporting member of gluing part,
Wherein said supporting member is honeycomb fashion seam supporting member, and described honeycomb fashion seam supporting member includes neighbouring described first honeycomb
First edge of sidepiece location and the second edge of neighbouring described second honeycomb sidepiece, described honeycomb fashion seam supporting member also includes
The multiple walls extended between described first and second edges of described honeycomb fashion seam supporting member, described wall limits multiple seams
Room, each in wherein said seam room has and is perpendicular to cross-sectional area that described wall measures and by described first and second limits
The thickness that distance between edge limits, wherein said gluing part is positioned in described seam room.
Method for being stitched together by honeycomb section the most according to claim 9, wherein said honeycomb fashion seam is propped up
Bearing member has the top between the first edge being positioned at described first and second honeycomb sections and is positioned at described first
And second honeycomb section the second edge between bottom margin, the described top of wherein said honeycomb fashion seam supporting member
And/or bottom margin is bending.
11. methods for honeycomb section is stitched together according to claim 10, wherein said first and second
Honeycomb sidepiece is bending, so that described joint member forms arc.
12. methods for honeycomb section is stitched together according to claim 9, wherein said first and second honeybees
Nest section includes being positioned at the baffle stating in honeycomb cells.
13. methods for being stitched together by honeycomb section according to claim 12, wherein said baffle includes
Acoustic septum cap, described acoustic septum cap is adhesively adhered to the wall of described honeycomb cells.
The manufacture method of 14. 1 kinds of engine nacelles, it includes splicing honeycomb texture one according to described in claim 12
Rise.
The manufacture method of 15. 1 kinds of jet engines, it includes manufacturing engine nacelle according to described in claim 14.
16. methods for honeycomb section is stitched together according to claim 9, the thickness of wherein said joint member
It is from 0.01 inch to 0.20 inch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610977775.3A CN107068143B (en) | 2012-02-29 | 2013-02-25 | Splicing of curved acoustic honeycomb structures |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/407,846 | 2012-02-29 | ||
| US13/407,846 US8579076B2 (en) | 2012-02-29 | 2012-02-29 | Splicing of curved acoustic honeycomb |
| PCT/US2013/027633 WO2013130397A1 (en) | 2012-02-29 | 2013-02-25 | Splicing of curved acoustic honeycomb |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610977775.3A Division CN107068143B (en) | 2012-02-29 | 2013-02-25 | Splicing of curved acoustic honeycomb structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104205208A CN104205208A (en) | 2014-12-10 |
| CN104205208B true CN104205208B (en) | 2016-11-30 |
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