CN103318203B - With the Lightweight composite-material carriage structure of the aerodynamic force aerotrain of imitative wing - Google Patents
With the Lightweight composite-material carriage structure of the aerodynamic force aerotrain of imitative wing Download PDFInfo
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- CN103318203B CN103318203B CN201210387818.4A CN201210387818A CN103318203B CN 103318203 B CN103318203 B CN 103318203B CN 201210387818 A CN201210387818 A CN 201210387818A CN 103318203 B CN103318203 B CN 103318203B
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Abstract
The present invention relates to a kind of Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing, comprise ring-like vehicle body and cabin floor, it is characterized in that overall carriage body construction all adopts composite material forming, outer, the internal layer covering of vehicle body adopt imitative silk cocoon to be wound around braiding structure; Therebetween sandwich layer is that lightweight imitates bird bone hollow structure; In stress concentration portion position, be added with composite material reinforcing rib structure; Composite material each interlayer viscose glue rete glueds joint, and adopts large-scale autoclave to carry out three composite curings.Cabin floor is the multidirectional interlocking stitches structure of network-like three-dimension integrally, with sidewall vehicle body adopt glued joint in single overlapping mode link.Preparation process of the present invention has: 1) core preparation; 2) outer covering is laid; 3) reinforced rib and laminboard layer is laid; 4) internal layer covering is laid; 5) composite curing; 6) base plate manufacture; 7) assembling link.Carriage body construction of the present invention have quality light, anti-wrinkling, shock-resistant, damage tolerance is high and the excellent properties such as antifatigue.
Description
Technical field
The present invention relates to a kind of carriage body construction of high speed train, particularly a kind of Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing, belong to material of construction preparation, field of structural design.
Background technology
Composite material has that strength-to-density ratio is high, stiffness-to-density ratio is large, the advantage such as shock resistance, endurance, and the application for modern high speed train provides bright and wide application prospect.
Recently, (Chinese patent: 201110209112.4, Chinese patent: 201110242739, Chinese patent: 201110242755.9) propose the aerodynamic force aerotrain with imitative wing, the locomotive of this train and the top often saving compartment are separately installed with the imitative wing of the wing structure of imitated aircraft to Jiang Lei etc.By producing upper lifting force with the airflow function of train relative motion in imitative wing structure, thus reduce train to the pressure of rail.Because car parts occupies the modern main by weight with the aerodynamic force aerotrain car body of imitative wing, therefore, the lightweight problem solving carriage body construction is badly in need of.The carriage body construction lightweight of the aerodynamic force aerotrain adopting advanced light composite material to make with imitative wing is one of gordian technique.
The natural composite material of occurring in nature is that we manufacture advanced light composite material and provide much useful information.As: silk cocoon structure, it has the excellent mechanical properties of high-strength light, and birds have optimum skeletal structure, and it contains the periodicity light structures that a large amount of hole communicates, and has saved material to greatest extent, further provides the intensity needed for Bird Flight simultaneously.By means of bionics principle, designing a kind of Lightweight composite-material carriage structure, and be applied to the aerodynamic force aerotrain with imitative wing, is purpose of the present invention.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of novel Lightweight composite-material carriage structure, and be applied to the aerodynamic force aerotrain with imitative wing.The good integrity of this composite material carriage body construction, quality is light, the mechanical property such as stability, shock resistance, antifatigue of structure all been significantly enhanced.This preparation method's technique is simple, and environmental pollution is little, and production efficiency is high, advantage of lower cost.
The present invention solves described as follows with the technical scheme of the Lightweight composite-material carriage structure technical matters of the aerodynamic force aerotrain of imitative wing:
The Lightweight composite-material carriage structure of a kind of aerodynamic force aerotrain with imitative wing of the present invention's design, comprise ring-like vehicle body and cabin floor, it is characterized in that overall carriage body construction all adopts composite material forming, the outer covering of vehicle body and internal layer covering adopt imitative silk cocoon to be wound around the composite material forming of braiding structure; Therebetween sandwich layer is the composite material forming that lightweight imitates bird bone hollow structure; In the stress concentration portion position of vehicle body, between outer covering and laminboard layer, be also added with composite material reinforcing rib structure; The each interlayer of composite material adopts macromolecular adhesive rete to glued joint and forms, and it is shaping to adopt large-scale autoclave to carry out three composite curings to unit body structure.Cabin floor adopts the composite material forming of the multidirectional interlocking stitches structure of network-like three-dimension integrally, with sidewall vehicle body adopt glued joint in single overlapping mode link and form overall carriage body construction.
Further feature of the present invention is that the locomotive that this composite material carriage body construction is applied to the aerodynamic force aerotrain of imitative wing saves in compartment with each.
Feature of the present invention is also: overall carriage body construction all adopts composite material forming.
Feature of the present invention is also: the outer covering of described ring-like vehicle body and internal layer covering adopt imitative silk cocoon to be wound around the composite material forming of braiding structure.
Feature of the present invention is also: described imitative silk cocoon is wound around the composite material compartment covering of braiding structure, comprises the six groups of yarn systems running through composite material circumference, radial direction, axially three directions: braiding yarn, winding yarn, shaft orientation reinforcing rib yarn, circumferential reinforced rib yarn, circumferential binder yarn, axial binder yarn.It is characterized in that braiding yarn is axially evenly distributed in each layer along core; Winding yarn is successively wound around along core circumference, and meanwhile, successively interweave, form the interlock that interweaves layer by layer with braiding yarn, yarns interwoven superposition forms fabric thickness; Axial and circumferential reinforced rib yarn does not all participate in interweaving, clamped by between the winding braid that winding yarn and braiding yarns interwoven are formed; Circumferentially with axially run through fabric thickness becomes an entirety by each layer access node to circumferential and axial binder yarn respectively.Described core is for preparing the inner lining mould needed for composite material compartment covering.
Feature of the present invention is also: the therebetween sandwich layer of described ring-like vehicle body adopts lightweight to imitate the composite material forming of bird bone hollow structure.
Feature of the present invention is also: described lightweight imitates the composite material compartment laminboard layer of bird bone hollow structure, by flaggy above, flaggy and being arranged on below, imitative bird bone hollow core sublayer below between flaggy is formed, it is characterized in that, flaggy forms sandwich structure below, described imitative bird bone hollow core sublayer is centered by vertical axis yarn, in neutral surface, the transverse yarns of broad ways and the transverse yarns of through-thickness are as effective support, the spacial framework that the imitative bird bone hollow configuration unit cell that communicate periodic arrangement by hole forms, and this imitative bird bone hollow core sublayer and upper, flaggy is woven to an entirety below.
Feature of the present invention is also: the stress concentration portion position cut in compartment is added with composite material reinforced rib.Described stress concentration portion position, as: car door position, window locations, imitative wing installation site, air-conditioning installation site, etc.Described reinforced rib adopts the composite material forming of 3 D multi-directional integral weaving structure.The shape of cross section of described reinforced rib is solid square, and outer shape is for long rectangular-shaped, and wherein top of car reinforced rib is class " well " font structure, and car part reinforced rib of leaning to one side is class sphere of movements for the elephants type structure.
Feature of the present invention is also: the composite material reinforced rib of described 3 D multi-directional integral weaving structure adopts four-step rule 3 D multi-directional integral weaving technology, prepared by the multidirectional integral weaving preformed part of high performance fibre material weaving three-dimensional; Described 3 D multi-directional integral weaving preformed part refers to the 3 D multi-directional integral weaving thing with specific braid angle, special fiber volume content, specific braiding structure.The scope of described braid angle is between 0 °-50 °, and the scope of described fiber volume fraction is between 20%-70%, described braiding structure refer to three-dimensional four-way, three-dimensional five to, three-dimensional six to three-dimensional seven to the one in braiding structure.
Feature of the present invention is also: described cabin floor adopts the composite material forming of the multidirectional interlocking stitches structure of network-like three-dimension integrally.
Feature of the present invention is also: the composite material compartment base plate of the multidirectional interlocking stitches structure of described network-like three-dimension integrally, comprise eight groups of yarn systems, be respectively knitting yarn wire system, axle yarn system, laterally fill weft systems, longitudinally fill weft systems ,+45 degree fill weft systems ,-45 degree fill weft systems, the weft systems that laterally interweaves, longitudinally to interweave weft systems.Fine and close three-dimensional integral network structure is formed according to the braiding of different interlocking texture mutual linkings between eight groups of yarn systems.
Feature of the present invention is also: the link structure of integral composite body structure and composite material compartment base plate singly overlaps type within glueing joint, and adopts macromolecular adhesive film to glued joint between composite-material body and composite material compartment base plate, and increases rivet link.
Feature of the present invention is also: the yarn raw material selection carbon fiber T300 series of described composite material reinforcement body, and one or more in 3k, 6k, 9k, 12k are used in combination; Or select one in Kafra fiber, glass fibre, aramid fiber, high-tenacity polyethylene fibre, basalt fibre etc.Reisn base material adopts the one in epoxy resin, phenol resin, urethane resin or unsaturated polyester.
Feature of the present invention is also: each interlayer of composite material adopts macromolecular adhesive rete to glued joint and forms.
Feature of the present invention is also: integral composite body structure adopts vacuum bag molding to carry out sealing and pressurizeing, and it is shaping to adopt large-scale autoclave to carry out three composite curings.Described autoclave oad is 30-35 rice, and diameter is 5.5 meters; Controllable temperature scope be room temperature to 300 DEG C, maximum pressure levels can reach 7 barometric pressures.
Feature of the present invention is also: the length of described body contour size is: 0-28 rice, and width is 0-3.5 rice, is highly 0-3.5 rice, and thickness is 0-0.30 rice.The length of described cabin floor oad is: 0-28 rice, and width is 0-3.5 rice, and thickness is 0-0.05 rice.
Feature of the present invention is also: the oad length that described imitative silk cocoon is wound around the outer covering in composite material compartment of braiding structure is 0-28 rice, and width is 0-3.5 rice, is highly 0-3.5 rice, and thickness is 0-0.025 rice, and fiber volume fraction is 30%-70%.; The oad length of internal layer covering is 0-28 rice, and width is 0-3.5 rice, is highly 0-3.5 rice, and thickness is 0-0.015 rice, and fiber volume fraction is 30%-70%.
Feature of the present invention is also: the composite material reinforced rib cross sectional dimensions length of described 3 D multi-directional integral weaving structure is 0-0.040 rice, and width is 0-0.040 rice; The length of top of car reinforcing rib structure is 0-28 rice, and width is 0-3 rice; The lean to one side length of part reinforcing rib structure of car is 0-28 rice, and width is 0-1.5 rice.
Feature of the present invention is also: the Composite Sandwich layer oad length of described imitative bird bone hollow structure is 0-28 rice, and width is 0-3.5 rice, is highly 0-3.5 rice; Top panel layer thickness is 0-0.020 rice, and lower faceplate layer thickness is 0-0.020 rice, and single interlayer core layer height is 0-0.160 rice.
Feature of the present invention is also: the oad length of the composite material compartment base plate of the multidirectional interlocking stitches structure of described network-like three-dimension integrally is 0-28 rice, and width is 0-3.5 rice, and thickness is 0-0.05 rice.
The Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing of the present invention, is characterized in that being prepared as follows:
1) composite material core is prepared
For preparing composite material core, first design and manufaction inner lining mould, inner lining mould adopts wood materials, manufactures composite material core at wood mold coupled outside face.Wood mold coupled outer shape, oad are identical with the profile of vehicle body.Composite core is molded the raw MAT'L made and adopts fiber prepreg material, first at the outer surface mold release of wooden core, then carries out laying by hand paste lay-up process, after fiber prepreg material lamination reaches certain thickness, stops laying.The outside face of laminated composite core installs metal framework, to play actv. humidification, then carries out composite curing at ambient temperature or elevated temperature, curing and demolding, obtained composite material core.
2) outer covering is laid
After composite core mould completes, first mold release is applied at the inside face of composite material core, after applying macromolecular adhesive rete again, lay and there is the outer covering in composite material compartment that certain thickness imitative silk cocoon is wound around braiding structure, by composite material core and outer skin material entirety adopt vacuum bag molding to carry out sealing and pressurizeing, and in large-scale autoclave composite curing.The composite material compartment covering that described imitative silk cocoon is wound around braiding structure utilizes winding weaving to be prepared from conjunction with 3 D weaving technique.
3) reinforced rib and laminboard layer is laid
After outer covering solidification, at the surface coating macromolecular adhesive rete of outer covering, lay composite material reinforced rib, the shape of cross section of reinforced rib is solid squares, top of car reinforced rib is class " well " font structure, and car part reinforced rib of leaning to one side is class sphere of movements for the elephants type structure.After laying composite material reinforcing rib structure, then apply macromolecular adhesive rete, lay the composite material compartment laminboard layer of imitative bird bone hollow structure.Afterwards, by the vehicle body made of composite materials be made up of outer covering, reinforced rib and hollow laminboard layer, adopt vacuum bag molding to carry out sealing and pressurizeing, and carry out secondary composite curing in large-scale autoclave.Described composite material reinforced rib adopts 3 D multi-directional integral weaving technology to be prepared from.The composite material compartment laminboard layer of described imitative bird bone hollow structure utilizes three-dimension integrally weaving technology to be prepared from.
4) internal layer covering is laid
For the vehicle body made of composite materials after curing molding in step 3), flaggy below the composite material compartment laminboard layer of imitative bird bone hollow structure, coating macromolecular adhesive rete, lays and has the composite material compartment internal layer covering that certain thickness imitative silk cocoon is wound around braiding structure.Described internal layer covering utilizes winding weaving to be prepared from conjunction with 3 D weaving technique.
5) composite curing is shaping
Adopt vacuum bag molding to carry out sealing and pressurizeing unit body structure, third time puts into large-scale autoclave, and composite curing is shaping.Integral composite body structure after three solidification final molding is done demoulding process.
6) cabin floor manufacture
Utilize three-dimension integrally braiding technique in conjunction with three-dimension integrally weaving technology, manufacture the composite material compartment base plate of the multidirectional interlocking stitches structure of network-like three-dimension integrally.
7) assembling link
Integral composite body structure links with composite material compartment base plate.Link structure singly overlaps type within glueing joint, and adopts macromolecular adhesive film to glued joint between composite-material body and composite material compartment base plate, and increases rivet link.
The present invention compared with prior art, has the following advantages and high-lighting effect:
The carriage body construction of a kind of aerodynamic force aerotrain with imitative wing of the present invention's design, because overall carriage body construction all adopts high-performance fiber reinforced composite shaping, significantly reduces the weight in compartment, improves the load-carrying efficiency of structure; The imitative silk cocoon that the present invention adopts is wound around the composite material compartment covering of braiding structure, comprise and run through composite material circumference, radial direction, axial many groups yarn system, mutually intertexture is wound around between yarn, form overall compact structure, the performance such as the stability of covering, anti-wrinkling, shock resistance is all been significantly enhanced; The imitative bird bone hollow structure laminboard layer that the present invention adopts, provide not only the design of lightweight, and core layer plays the effect of actv. Bidirectional supporting, provides the Rigidity and strength that carriage body construction is enough, decreases required parts, simplifies assembling.The present invention, in the stress concentration portion position of vehicle body, adds 3 D multi-directional integral weaving composite material as reinforcing rib structure, substantially reduces stress and concentrate, meet the requirement of design.In addition, cabin floor adopts the composite material forming of the multidirectional interlocking stitches structure of network-like three-dimension integrally, instead of metal steel structure in the past, not only significantly reduce the weight in compartment, also improve key mechanics performance in the faces such as the resistance to compression of cabin floor, bending resistance, shearing resistance.Generally, this composite material carriage body construction has that quality is light, shock-resistant, damage tolerance is high and the excellent properties such as antifatigue.Integral composite structure of the present invention can also be widely used in many new high-tech product fields such as aerospace, navigation and defence equipment.
In the scope of applicant's retrieval, the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing of the present invention yet there are no pertinent literature report.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the aerodynamic force aerotrain with imitative wing.
Fig. 2 is the schematic diagram of Lightweight composite-material carriage structure provided by the invention.
Fig. 3 is that the imitative silk cocoon of compartment covering is wound around braiding structure cross sectional representation.
Fig. 4 is that a kind of lightweight of compartment laminboard layer imitates bird bone hollow structure schematic diagram.
Fig. 5 is the network-like 3 D multi-directional overall interlocking stitches feature cross-section schematic diagram of cabin floor.
1-is with the aerodynamic force aerotrain of imitative wing; 2-imitates wing; 3-railway car; The ring-like vehicle body of 4-; 5-cabin floor; The outer covering of 6-(imitative silk cocoon is wound around braiding structure); 7-therebetween sandwich layer (lightweight imitates bird bone hollow structure); 8-internal layer covering (imitative silk cocoon is wound around braiding structure); 9-window locations; 10-class " well " font structure roof reinforced rib; 11-class sphere of movements for the elephants type structure car is leaned to one side reinforced rib; 12-macromolecular adhesive rete; Single overlapping mode link in 13-; 14-weaves yarn; 15-winding yarn; 16-shaft orientation reinforcing rib; 17-circumference reinforced rib; 18-circumference binder yarn; The axial binder yarn of 19-; Flaggy above 20-; Flaggy below 21-; 22-imitates bird bone hollow core sublayer (serpentine intersection configuration); 23-vertical axis yarn; Broad ways transverse yarns in 24-neutral surface; Through-thickness transverse yarns in 25-neutral surface; 26-knitting yarn wire system; 27-axle yarn system; 28-laterally fills weft systems; 29-longitudinally fills weft systems; 30-+45 degree fills weft systems; 31--45 degree fills weft systems; The horizontal weft systems that interweaves of 32-; The longitudinal weft systems that interweaves of 33-;
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the schematic diagram of the aerodynamic force aerotrain with imitative wing.Fig. 2 is the schematic diagram of the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing provided by the invention.It comprises ring-like vehicle body 4 and cabin floor 5, it is characterized in that whole carriage body construction all adopts composite material forming, and annular vehicle is as " sandwich " structure, and outer covering 6 and internal layer covering 7 adopt imitative silk cocoon to be wound around braiding structure composite material forming; Therebetween sandwich layer 8 imitates bird bone hollow structure composite material forming for lightweight; In the stress concentration portion position of vehicle body, as: window locations 9, etc., also containing composite material reinforcing rib structure between outer covering 6 and laminboard layer 8; Described reinforced rib adopts 3 D multi-directional integral weaving structural composite material shaping, and outer shape is for long rectangular-shaped, and wherein top of car is class " well " font structure 10, and car leans to one side to be partly class sphere of movements for the elephants type structure 11.The each interlayer of composite material adopts macromolecular adhesive rete 12 to glued joint and forms, and adopts large-scale autoclave to carry out composite curing to unit body structure.Cabin floor 5 adopts network-like three-dimension integrally multidirectional interlocking stitches structural composite material shaping, with sidewall vehicle body adopt glued joint in single overlapping mode link 13 and form overall carriage body construction.
Feature of the present invention is also that described imitative silk cocoon is wound around the composite material of braiding structure, comprises the six groups of yarn systems running through composite material circumference, radial direction, axially three directions: braiding yarn, winding yarn, shaft orientation reinforcing rib yarn, circumferential reinforced rib yarn, circumferential binder yarn, axial binder yarn.It is characterized in that braiding yarn is axially evenly distributed in each layer along core; Winding yarn is successively wound around along core circumference, and meanwhile, successively interweave, form the interlock that interweaves layer by layer with braiding yarn, yarns interwoven superposition forms fabric thickness; Reinforced rib yarn do not participate in interweave, by winding yarn and braiding yarns interwoven yarn be wound around between braid clamped by; Circumferentially with axially run through fabric thickness becomes an entirety by each layer access node to binder yarn.The inner lining mould of described core needed for Filament Wound Composite.
Feature of the present invention is also that described imitative silk cocoon is wound around the composite material compartment covering 6,8 of braiding structure, comprises the six groups of yarn systems running through composite material circumference, radial direction, axially three directions.See Fig. 2, braiding yarn 14 is axially evenly distributed in each layer along core; Winding yarn 15 is successively wound around along core circumference, and meanwhile, successively interweave, form the interlock that interweaves layer by layer with braiding yarn, yarns interwoven superposition forms fabric thickness; Clamped by the yarn that circumference reinforced rib 16 and shaft orientation reinforcing rib yarn 17 are made up of winding yarn and braiding yarns interwoven is wound around between braid; Circumferentially with axially running through fabric thickness becomes an entirety by each layer access node respectively for circumference binder yarn 18 and axial binder yarn 19.The inner lining mould of described core needed for Filament Wound Composite.
Feature of the present invention is also that described lightweight imitates the composite material compartment laminboard layer 7 of bird bone hollow structure, see Fig. 4, it is by flaggy 20 above, flaggy 21 and being arranged on below, imitative bird bone hollow core sublayer 22 below between flaggy is formed, it is characterized in that, flaggy forms sandwich structure below, described imitative bird bone hollow core sublayer is centered by vertical axis yarn 23, in neutral surface, broad ways transverse yarns 24 and through-thickness transverse yarns 25 are as support, the spacial framework that the imitative bird bone hollow configuration unit cell that communicate periodic arrangement by hole forms, and this imitative bird bone hollow core sublayer and upper, flaggy is woven to an entirety below.
Feature of the present invention is also that the composite material reinforced rib 10,11 of described 3 D multi-directional integral weaving structure adopts four-step rule 3 D multi-directional integral weaving technology, is prepared by the multidirectional integral weaving preformed part of high performance fibre material weaving three-dimensional; Described 3 D multi-directional integral weaving preformed part refers to the 3 D multi-directional integral weaving thing with specific braid angle, special fiber volume content, specific braiding structure.The scope of described braid angle is between 0 °-50 °, and the scope of described fiber volume fraction is between 20%-70%, described braiding structure refer to three-dimensional four-way, three-dimensional five to, three-dimensional six to three-dimensional seven to the one in braiding structure.
Feature of the present invention is also the composite material compartment base plate 5 of the multidirectional interlocking stitches structure of described network-like three-dimension integrally, see Fig. 5, it comprises eight groups of yarn systems, is respectively knitting yarn wire system 26, axle yarn system 27, laterally fills weft systems 28, longitudinal filling weft systems 29 ,+45 degree is filled weft systems 30 ,-45 and spent filling weft systems 31, horizontal intertexture weft systems 32, longitudinal intertexture weft systems 33.Fine and close three-dimensional integral network structure is formed according to the braiding of different interlocking texture mutual linkings between eight groups of yarn systems.
The Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing of the present invention, is characterized in that being prepared as follows:
1) composite material core is prepared
For preparing composite material core, first design and manufaction inner lining mould, inner lining mould adopts wood materials, manufactures composite material core at wood mold coupled outside face.Wood mold coupled outer shape, oad are identical with the profile of vehicle body.Composite core is molded the raw MAT'L made and adopts fiber prepreg material, first on wood mold coupled outside face, applies mold release, then carries out laying by hand paste lay-up process, after fiber prepreg material lamination reaches certain thickness, stops laying.The outside face of laminated composite core installs metal framework, to play actv. humidification, then carries out composite curing at ambient temperature or elevated temperature, curing and demolding, obtained composite material core.
2) outer covering is laid
After composite core mould completes, first mold release is applied at the inside face of composite material core, after applying macromolecular adhesive rete again, lay and there is the outer covering in composite material compartment that certain thickness imitative silk cocoon is wound around braiding structure, by composite material core and outer skin material entirety adopt vacuum bag molding to carry out sealing and pressurizeing, and in large-scale autoclave composite curing.The composite material compartment covering that described imitative silk cocoon is wound around braiding structure utilizes winding weaving to be prepared from conjunction with 3 D weaving technique.
3) reinforced rib and laminboard layer is laid
After outer covering solidification, at the surface coating macromolecular adhesive rete of outer covering, lay composite material reinforced rib, the shape of cross section of reinforced rib is solid squares, top of car reinforced rib is class " well " font structure, and car part reinforced rib of leaning to one side is class sphere of movements for the elephants type structure.After laying composite material reinforced rib, then apply macromolecular adhesive rete, lay the composite material compartment laminboard layer of imitative bird bone hollow structure.Afterwards, by the vehicle body made of composite materials be made up of outer covering, reinforced rib and hollow laminboard layer, adopt vacuum bag molding to carry out sealing and pressurizeing, and carry out secondary composite curing in large-scale autoclave.Described composite material reinforced rib adopts 3 D multi-directional integral weaving technology to be prepared from.The composite material compartment laminboard layer of described imitative bird bone hollow structure utilizes three-dimension integrally weaving technology to be prepared from.
4) internal layer covering is laid
For the vehicle body made of composite materials after curing molding in step 3), flaggy below the composite material compartment laminboard layer of imitative bird bone hollow structure, coating macromolecular adhesive rete, lays and has the composite material compartment internal layer covering that certain thickness imitative silk cocoon is wound around braiding structure.Described internal layer covering utilizes winding weaving to be prepared from conjunction with 3 D weaving technique.
5) composite curing is shaping
Adopt vacuum bag molding to carry out sealing and pressurizeing unit body structure, third time puts into large-scale autoclave, and composite curing is shaping.Integral composite body structure after three solidification final molding is done demoulding process.
6) cabin floor manufacture
Utilize three-dimension integrally braiding technique in conjunction with three-dimension integrally weaving technology, manufacture the composite material compartment base plate of the multidirectional interlocking stitches structure of network-like three-dimension integrally.
7) assembling link
Integral composite body structure links with composite material compartment base plate.Link structure singly overlaps type within glueing joint, and adopts macromolecular adhesive film to glued joint between composite-material body and composite material compartment base plate, and increases rivet link.
Embodiment:
The Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing of the present invention, is characterized in that being prepared as follows:
1) composite material core is prepared
For preparing composite material core, first design and manufaction inner lining mould, inner lining mould adopts wood materials, manufactures composite material core at wood mold coupled outside face.Wood mold coupled outer shape is identical with the outer shape of vehicle body, for being with the ring-type of rounded corners; Oad length is 25 meters, and width is 3 meters, is highly 3 meters, and wall thickness is 0.02 meter.Composite core is molded the raw MAT'L made and adopts glass fibre/epoxy prepreg, first on wood mold coupled outside face, applies mold release, then carries out laying by hand paste lay-up process, after fiber prepreg material laminated thickness reaches 0.03 meter, stops laying.The outside face of laminated composite core installs metal framework, to play actv. humidification, first solidify 7 days under room temperature environment, put into large-scale autoclave again, at 1 atmosphere pressure, solidify 15 hours at high temperature 100 DEG C, the oad length of described large-scale autoclave is 30 meters, and diameter is 5.5 meters.Curing and demolding, obtained composite material core, the length of the oad of composite material core is 25 meters, and width is 3 meters, is highly 3 meters, and thickness is 0.03 meter.
2) outer covering is laid
After composite core mould completes, first mold release is applied at the inside face of composite material core, after applying BONDEX606 macromolecular adhesive rete again, lay the outer covering in composite material compartment that imitative silk cocoon is wound around braiding structure, the oad length of outer covering is 25 meters, and width is 3.153 meters, is highly 3.153 meters, thickness is 0.015 meter, and fiber volume fraction is 60%.The outer covering in composite material compartment that described imitative silk cocoon is wound around braiding structure adopts the carbon fiber reinforced epoxy resin-based body of T30012K, utilizes winding weaving to be prepared from conjunction with 3 D weaving technique.Adopt vacuum bag molding to carry out sealing and pressurizeing composite material core and outer skin material entirety, then put into large-scale autoclave, under 2 barometric pressures, solidify 24 hours at high temperature 110 DEG C.
3) reinforced rib and laminboard layer is laid
After outer covering solidification, at the surface coating BONDEX606 macromolecular adhesive rete of outer covering, thickness is 0.004mm, lays composite material reinforcing rib structure, top of car reinforced rib is class " well " font structure, and car part reinforced rib of leaning to one side is class sphere of movements for the elephants type structure.The shape of cross section of reinforced rib is solid squares, and sectional dimension length is 0.03 meter, and width is 0.03 meter; The length of top of car reinforcing rib structure is 25 meters, and width is 2.5 meters; The lean to one side length of part reinforcing rib structure of car is 25 meters, and width is 1 meter; Described composite material reinforced rib adopts the carbon fiber reinforced epoxy resin-based body of T3006K, utilizes 3 D multi-directional integral weaving technology to be prepared from.After laying composite material reinforcing rib structure, then apply BONDEX606 macromolecular adhesive rete, thickness is 0.003mm, lays the composite material compartment laminboard layer of imitative bird bone hollow structure.Compartment laminboard layer oad length is 25 meters, and width is 3.013 meters, is highly 3.013 meters; Top panel layer thickness is 0.008 meter, lower faceplate layer thickness is 0.005 meter, and core layer thickness is 0.09 meter; The composite material compartment laminboard layer of described imitative bird bone hollow structure, adopts the carbon fiber reinforced epoxy resin-based body of T3009K, utilizes three-dimension integrally weaving technology to be prepared from.After laying compartment laminboard layer, by the vehicle body made of composite materials be made up of outer covering, reinforced rib and hollow laminboard layer, adopt vacuum bag molding to carry out sealing and pressurizeing, and carry out secondary composite curing in large-scale autoclave, under 3 barometric pressures, solidify 24 hours at high temperature 150 DEG C.
4) internal layer covering is laid
For the vehicle body made of composite materials after curing molding in step 3), flaggy below the composite material compartment laminboard layer of imitative bird bone hollow structure, coating BONDEX606 macromolecular adhesive rete, thickness is 0.003mm, and lay the composite material compartment internal layer covering that imitative silk cocoon is wound around braiding structure, the oad length of internal layer covering is 25 meters, width is 3 meters, be highly 3 meters, thickness is 0.010 meter, and fiber volume fraction is 50%.The outer covering in composite material compartment that described imitative silk cocoon is wound around braiding structure adopts the carbon fiber reinforced epoxy resin-based body of T3006K, utilizes winding weaving to be prepared from conjunction with 3 D weaving technique.
5) composite curing is shaping
Adopt vacuum bag molding to carry out sealing and pressurizeing unit body structure, third time puts into large-scale autoclave, and composite curing is shaping, under 3 barometric pressures, solidifies 30 hours at high temperature 180 DEG C.Integral composite body structure after three solidification final molding is done demoulding process.The oad length of the integral composite body structure of preparation is 25 meters, and inner width is 3 meters, and internal height is 3 meters, and vehicle body thickness is 0.168 meter.
6) cabin floor manufacture
The cabin floor of the multidirectional interlocking stitches composite material of network-like three-dimension integrally, adopts the carbon fiber reinforced epoxy resin-based body of T30012K, utilizes three-dimension integrally braiding technique to be prepared from conjunction with three-dimension integrally weaving technology.The oad length of the composite material compartment base plate of preparation is 25 meters, and width is 3 meters, and thickness is 0.03 meter; Braid angle is 30 degree, and fiber volume fraction is 65%.
7) assembling link
Integral composite body structure links with composite material compartment base plate.Link structure singly overlaps type within glueing joint, and adopts BONDEX606 macromolecular adhesive film to glued joint between composite-material body and Composite base plate, and increases rivet link.
Claims (9)
1. the Lightweight composite-material carriage structure with the aerodynamic force aerotrain of imitative wing, comprise ring-like vehicle body and cabin floor, it is characterized in that: overall carriage body construction all adopts composite material forming, the outer covering of vehicle body and internal layer covering adopt imitative silk cocoon to be wound around the composite material forming of braiding structure; Therebetween sandwich layer is the composite material forming that lightweight imitates bird bone hollow structure; In the stress concentration portion position of vehicle body, between outer covering and laminboard layer, be also added with composite material reinforcing rib structure; The each interlayer of composite material adopts macromolecular adhesive rete to glued joint and forms, and it is shaping to adopt large-scale autoclave to carry out three composite curings to unit body structure, and the oad length of described large-scale autoclave is 30 meters, and diameter is 5.5 meters; Cabin floor adopts the composite material forming of the multidirectional interlocking stitches structure of network-like three-dimension integrally, with sidewall vehicle body adopt glued joint in single overlapping mode link and form overall carriage body construction;
Described imitative silk cocoon is wound around the composite material compartment covering of braiding structure, comprises the six groups of yarn systems running through composite material circumference, radial direction, axially three directions: braiding yarn, winding yarn, shaft orientation reinforcing rib yarn, circumferential reinforced rib yarn, circumferential binder yarn, axial binder yarn; Braiding yarn is axially evenly distributed in each layer along core; Winding yarn is successively wound around along core circumference, and meanwhile, successively interweave, form the interlock that interweaves layer by layer with braiding yarn, yarns interwoven superposition forms fabric thickness; Axial and circumferential reinforced rib yarn does not all participate in interweaving, clamped by between the winding braid that winding yarn and braiding yarns interwoven are formed; Circumferentially with axially run through fabric thickness becomes an entirety by each layer access node to circumferential and axial binder yarn respectively; Described core is for preparing the inner lining mould needed for composite material compartment covering.
2. the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing according to claim 1, it is characterized in that: described lightweight imitates the composite material compartment laminboard layer of bird bone hollow structure, by flaggy above, flaggy and being arranged on below, imitative bird bone hollow core sublayer below between flaggy is formed, on, flaggy forms sandwich structure below, described imitative bird bone hollow core sublayer is centered by vertical axis yarn, in neutral surface, the transverse yarns of broad ways and the transverse yarns of through-thickness are as effective support, the spacial framework that the imitative bird bone hollow configuration unit cell that communicate periodic arrangement by hole forms, and this imitative bird bone hollow core sublayer and upper, flaggy is woven to an entirety below.
3. the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing according to claim 1, is characterized in that: described stress concentration portion position comprises: car door position, window locations, imitative wing installation site, air-conditioning installation site; Described reinforced rib adopts the composite material forming of 3 D multi-directional integral weaving structure; The shape of cross section of described reinforced rib is solid square, and outer shape is for long rectangular-shaped, and wherein top of car reinforced rib is class " well " font structure, and car part reinforced rib of leaning to one side is class sphere of movements for the elephants type structure; The composite material reinforced rib of described 3 D multi-directional integral weaving structure adopts four-step rule 3 D multi-directional integral weaving technology, prepared by the multidirectional integral weaving preformed part of high performance fibre material weaving three-dimensional; Described 3 D multi-directional integral weaving preformed part refers to the 3 D multi-directional integral weaving thing with specific braid angle, special fiber volume content, specific braiding structure; The scope of described braid angle is between 0 °-50 °, and the scope of described fiber volume fraction is between 20%-70%, described braiding structure refer to three-dimensional four-way, three-dimensional five to, three-dimensional six to three-dimensional seven to the one in braiding structure.
4. the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing according to claim 1, it is characterized in that: the composite material compartment base plate of the multidirectional interlocking stitches structure of described network-like three-dimension integrally, comprise eight groups of yarn systems, be respectively knitting yarn wire system, axle yarn system, laterally fill weft systems, longitudinally fill weft systems ,+45 degree fill weft systems ,-45 degree fill weft systems, the weft systems that laterally interweaves, longitudinally to interweave weft systems; Fine and close three-dimensional integral network structure is formed according to the braiding of different interlocking texture mutual linkings between eight groups of yarn systems.
5. the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing according to claim 1, it is characterized in that: the link structure of described integral composite body structure and composite material compartment base plate singly overlaps type within glueing joint, adopt macromolecular adhesive film to glued joint between composite-material body and composite material compartment base plate, and increase rivet link.
6. the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing according to claim 1, it is characterized in that: the yarn raw material selection carbon fiber T300 series of composite material reinforcement body, one or more in 3k, 6k, 9k, 12k are used in combination; Or select one in Kafra fiber, glass fibre, aramid fiber, high-tenacity polyethylene fibre, basalt fibre; Reisn base material adopts the one in epoxy resin, phenol resin, urethane resin or unsaturated polyester.
7. the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing according to claim 1, it is characterized in that: the oad length that described imitative silk cocoon is wound around the outer covering in composite material compartment of braiding structure is 0-28 rice, width is 0-3.5 rice, be highly 0-3.5 rice, thickness is 0-0.030 rice, and fiber volume fraction is 30%-70%; The oad length of internal layer covering is 0-28 rice, and width is 0-3.5 rice, is highly 0-3.5 rice, and thickness is 0-0.015 rice, and fiber volume fraction is 30%-70%; The composite material reinforced rib cross sectional dimensions length of described 3 D multi-directional integral weaving structure is 0-0.040 rice, and width is 0-0.040 rice; The length of top of car reinforcing rib structure is 0-28 rice, and width is 0-3 rice; The lean to one side length of part reinforcing rib structure of car is 0-28 rice, and width is 0-1.5 rice; The Composite Sandwich layer oad length of described imitative bird bone hollow structure is 0-28 rice, and width is 0-3.5 rice, is highly 0-3.5 rice; Top panel layer thickness is 0-0.020 rice, and lower faceplate layer thickness is 0-0.020 rice, and single interlayer core layer height is 0-0.160 rice; The oad length of the composite material compartment base plate of the multidirectional interlocking stitches structure of described network-like three-dimension integrally is 0-28 rice, and width is 0-3.5 rice, and thickness is 0-0.05 rice.
8. the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing according to claim 1, it is characterized in that: the length of described body contour size is: 0-28 rice, width is 0-3.5 rice, is highly 0-3.5 rice, and thickness is 0-0.30 rice; The length of described cabin floor oad is: 0-28 rice, and width is 0-3.5 rice, and thickness is 0-0.05 rice; Integral composite body structure adopts vacuum bag molding to carry out sealing and pressurizeing; Controllable temperature scope be room temperature to 300 DEG C, maximum pressure levels can reach 7 barometric pressures.
9. the Lightweight composite-material carriage structure of the aerodynamic force aerotrain with imitative wing according to claim 1, is characterized in that: be prepared as follows:
1) composite material core is prepared
For preparing composite material core, first design and manufaction inner lining mould, inner lining mould adopts wood materials, manufactures composite material core at the outside face of inner lining mould; Outer shape, the oad of inner lining mould are identical with the profile of vehicle body; Composite core is molded the raw MAT'L made and adopts fiber prepreg material, first at the outer surface mold release of inner lining mould, then carries out laying by hand paste lay-up process, after fiber prepreg material lamination reaches certain thickness, stops laying; The outside face of laminated composite core installs metal framework, to play actv. humidification, then carries out composite curing at ambient temperature or elevated temperature, curing and demolding, obtained composite material core;
2) outer covering is laid
After composite core mould completes, first mold release is applied at the inside face of composite material core, after applying macromolecular adhesive rete again, lay and there is the outer covering in composite material compartment that certain thickness imitative silk cocoon is wound around braiding structure, by composite material core and outer skin material entirety adopt vacuum bag molding to carry out sealing and pressurizeing, and in large-scale autoclave composite curing; The composite material compartment covering that described imitative silk cocoon is wound around braiding structure utilizes winding weaving to be prepared from conjunction with 3 D weaving technique;
3) reinforced rib and laminboard layer is laid
After outer covering solidification, at the surface coating macromolecular adhesive rete of outer covering, lay composite material reinforced rib, the shape of cross section of reinforced rib is solid squares, top of car reinforced rib is class " well " font structure, and car part reinforced rib of leaning to one side is class sphere of movements for the elephants type structure; After laying composite material reinforcing rib structure, then apply macromolecular adhesive rete, lay the composite material compartment laminboard layer of imitative bird bone hollow structure; Afterwards, by the vehicle body made of composite materials be made up of outer covering, reinforced rib and hollow laminboard layer, adopt vacuum bag molding to carry out sealing and pressurizeing, and carry out secondary composite curing in large-scale autoclave; Described composite material reinforced rib adopts 3 D multi-directional integral weaving technology to be prepared from; The composite material compartment laminboard layer of described imitative bird bone hollow structure utilizes three-dimension integrally weaving technology to be prepared from;
4) internal layer covering is laid
For the vehicle body made of composite materials after curing molding in step 3), flaggy below the composite material compartment laminboard layer of imitative bird bone hollow structure, coating macromolecular adhesive rete, lays and has the composite material compartment internal layer covering that certain thickness imitative silk cocoon is wound around braiding structure; Described internal layer covering utilizes winding weaving to be prepared from conjunction with 3 D weaving technique;
5) composite curing is shaping
Adopt vacuum bag molding to carry out sealing and pressurizeing unit body structure, third time puts into large-scale autoclave, and composite curing is shaping; Integral composite body structure after three solidification final molding is done demoulding process;
6) cabin floor manufacture
Utilize three-dimension integrally braiding technique in conjunction with three-dimension integrally weaving technology, manufacture the composite material compartment base plate of the multidirectional interlocking stitches structure of network-like three-dimension integrally;
7) assembling link
The ring-like body structure of integral composite links with composite material compartment base plate; Link structure singly overlaps type within glueing joint, and adopts macromolecular adhesive film to glued joint between the ring-like vehicle body of composite material and composite material compartment base plate, and increases rivet link.
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