CN203093159U - Composite material dot-matrix structure with novel connection between rod member and panel - Google Patents
Composite material dot-matrix structure with novel connection between rod member and panel Download PDFInfo
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- CN203093159U CN203093159U CN 201320090872 CN201320090872U CN203093159U CN 203093159 U CN203093159 U CN 203093159U CN 201320090872 CN201320090872 CN 201320090872 CN 201320090872 U CN201320090872 U CN 201320090872U CN 203093159 U CN203093159 U CN 203093159U
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Abstract
The utility model discloses a composite material dot-matrix structure with novel connection between a rod member and a panel. The composite material dot-matrix structure comprises an upper panel, a lower panel, a pressure rod and a draw wire, wherein the upper panel and the lower panel are two panels with opposite inner surfaces; pressure rod slots are formed in corresponding positions of the inner surfaces of the upper and lower panels; the two ends of the pressure rod are respectively inserted into the corresponding pressure rod slots of the upper and lower panels to support the upper and lower panels; draw wire holes for connecting the panels are also formed in the upper and lower panels; and the draw wire is woven to pass through the panel from the draw wire holes so as to draw and fix the opposite upper and lower panels. The utility model provides a novel connection mode based on the traditional connection mode between a rod member and a panel of a composite material dot-matrix structure, the vertical component force of the raw wire and the pressure rod realizes self-balance on the junction of the panels, the bearing capacity of the junction is enhanced, the mechanical performance of the whole dot-matrix structure is improved, and the composite material dot-matrix structure disclosed by the utility model can be applied to aerospace and navigation vessels with composite material dot-matrix structures.
Description
Technical field
The utility model relates to the Composite Preparation technology, relates in particular to a kind of rod member and the novel composite dot-matrix structure that is connected of panel.
Background technology
The composite dot-matrix structure is because of its lightweight, high-strength, corrosion-resistant and good Aero-Space and the navigation naval vessels field of being widely used in of antidetonation.Because the single sheathing structure-bearing is not enough, therefore develop the double face slab structure that top panel and lower panel, this is with regard to the node connected mode problem between the needs solution double face slab.At present, people have carried out a lot of researchs to the composite dot-matrix structure, have proposed some new nodal connected modes.People such as the Fan Hualin of Tsing-Hua University adopt the interspersed basketry of fiber to prepare carbon fibre composite truss core structure, the node connected mode is a mechanical connection, the rod member that this preparation technology makes easily bends, and the space of a whole page has initial damage, can not carry out the preparation of large scale structure.University of Virginia Wadley seminar adopts the rod member packaging technology to prepare pyramid composite dot-matrix structure, and the node connected mode is that interlocking connects, the easy destruction of coming unstuck of the node that this preparation technology makes, and delamination failure easily takes place in panel.Wu Lin will seminar of Harbin Institute of Technology adopts once, secondary and resin transfer molding (Resin Transfer Molding) RTM technology are prepared pyramid and met the material lattice structure, the node connected mode is to glued joint to be connected with global formation, once, the fuse that is prepared into of secondary forming process and upper and lower panel is connected a little less than the relative thin, the node that RTM technology is made easily ruptures because of face core contact area is little, and the flexing cracking easily takes place rod member.Therefore, existing composite dot-matrix structure is destroyed because of the node undercapacity, and complicated process of preparation, has limited the extensive use and the development of composite dot-matrix structure.
The utility model content
For the bearing capacity deficiency that solves existing node connected mode and the shortcoming of complicated process of preparation, the utility model provides a kind of composite dot-matrix structure that adopts the connected mode of new rod member and panel.
The purpose of this utility model is to provide a kind of rod member and panel the novel composite dot-matrix structure that is connected.
Composite dot-matrix structure of the present utility model comprises: top panel, lower panel, depression bar and wire drawing; Wherein, top panel is the relative two panels of inner surface with lower panel; Corresponding position at the inner surface of upper and lower panel is provided with the depression bar groove, and the two ends of depression bar are inserted respectively in the corresponding depression bar groove of upper and lower panel and supported upper and lower panel; Upper and lower panel also is provided with the wire drawing hole of getting through panel, and wire drawing is passed panel from the braiding of wire drawing hole, and relative upper and lower two panels tractive is fixed.
Top panel of the present utility model and lower panel comprise skin panel, thickening plate and the Die and mould plate of tight bond successively respectively, and the Die and mould plate of two panels is relative.Die and mould plate is as drawing paper, in order to the position of mark depression bar groove; Thickening plate increases the intensity of panel; Skin panel is in order to withstand depression bar.Panel is three layers of laminate that bonding forms, and structure is more stable, the bearing capacity height.
Joint of the present utility model comprises depression bar and wire drawing.Get through the Die and mould plate of panel and thickening plate inner surface to skin panel, form the depression bar groove, depression bar inserts the depression bar groove and supports upper and lower panel, and the skin panel of upper and lower panel withstands the two ends of depression bar respectively, thereby support upper and lower panel, the effect of the pressure that opposing composite dot-matrix structure is suffered.Choose suitable depression bar and wire drawing according to stressed size and character, brought into play the mechanical property of depression bar and wire drawing, and realize self-balancing at the node place, structure stress is more reasonable; Depression bar embeds in the panel by the depression bar groove, and encapsulating is fixed, so the intensity of depression bar is very big.The end face that depression bar contacts with skin panel cuts to respective angles according to angle, so that depression bar and skin panel are just in time fitted.In order to prevent that depression bar from pushing up bad skin panel under stressing conditions, can lay layer of glass, to improve local shear resistance between skin panel and thickening plate.
Panel of the present utility model is provided with the wire drawing hole of getting through panel, wire drawing passes panel from the wire drawing hole of a panel, wear around penetrating panel through the outer surface of skin panel to adjacent wire drawing hole, and tractive is to relative panel, from then on the wire drawing hole of panel passes panel again, relative upper and lower panel tractive is fixed in braiding and so forth, the effect of the pulling force that opposing composite dot-matrix structure is suffered.Wire drawing is filled up colloid in the hole, hot setting.Wire drawing is a mechanical splice, and the intensity of wire drawing load is very big.Choose suitable depression bar and wire drawing according to stressed size and character, brought into play the mechanical property of depression bar and wire drawing, and realize self-balancing at the node place, structure stress is more reasonable.
Further, panel of the present utility model is provided with rivet, and rivet runs through panel, thereby strengthens interlaminar strength, and the antistripping ability is stronger.
Further, be respectively arranged with the wire drawing hole, on the line of centres that is centered close to the wire drawing hole of depression bar groove at the two ends of each depression bar groove.Wire drawing passes panel from the wire drawing hole of depression bar groove one end of a panel, wear around the wire drawing hole to the depression bar groove other end through the outer surface of skin panel and penetrate panel, thereby wire drawing catches depression bar, further the effect of reinforced composite lattice structure opposing external force.
The composite dot-matrix structure is general to be used as laterally holding the kinking structure, structure is being subjected under the curved effect, lattice structure similar spaces truss structure, upper and lower panel bears pressure and pulling force effect respectively, the common opposing moment of flexure that forms, with the cross section moment of flexure that the balance external load forms, lattice structure of the present utility model is born the shearing that external load causes respectively with the form of depression bar and wire drawing.At the node place, pulling force and pressure act on the interior and outer surface of panel respectively, the radial compression applied that panel is subjected to perpendicular to fiber orientation, this will improve the compression strength that panel is parallel to fiber orientation, panel is not easy to take place delamination failure, and the node place does not form additional bending moment substantially, and depression bar and panel intersection can not form up-stripping power, the place has realized self-balancing at node, and node is stable.
The utility model is based on the rod member of traditional composite dot-matrix structure and the connected mode of panel, a kind of novel connected mode has been proposed, wire drawing and depression bar vertical force component have realized self-balancing on the panel node, changed traditional connected mode and all born the mode of transfer force of rod member vertical force component by the antistripping ability between panel layer, strengthen the bearing capacity of node, improved the mechanical property of whole lattice structure.The utility model can be applied in the Aero-Space and navigation naval vessels with composite dot-matrix structure.
Advantage of the present utility model:
1) joint is made up of depression bar and wire drawing two parts, and depression bar is to be inserted in Die and mould plate and the stiffener, prop up by skin panel, and in the depression bar groove encapsulating integrally curing, so the strength of joint of depression bar is very big; Wire drawing is passed panel by the fibrage moulding by the wire drawing hole in addition, and whole depression bar becomes an integral body, good integrity, and in the wire drawing hole encapsulating integrally curing; Because the wire drawing joint is a mechanical splice, the strength of joint of wire drawing is very big; The joint connected mode of comprehensive depression bar wire drawing, the novel joint total bearing capacity of composite dot-matrix is very high;
2) calculate the stressed character and the stressed size of each rod member according to designing requirement, choose rational rod member type and, bar material matches well and the caliber size, can give full play to the mechanical property performance of all kinds of rod members like this, makes structure stress more reasonable;
3) structural stability is good, and Yin Lasi is the integral weaving moulding, each depression bar overall fixed composite structure that is connected as a single entity, and its resistance to overturning is better, and the phenomenon that depression bar and covering break away from can not occur;
4) panel antistripping ability is stronger, and panel is passed in the wire drawing braiding, and punches with rivet on the panel, and the antistripping ability is stronger between panel.
Description of drawings
Fig. 1 is the schematic diagram that depression bar and the wire drawing of composite dot-matrix of the present utility model is connected with panel;
Fig. 2 is the front view that amplify the part at the node place of composite dot-matrix of the present utility model;
Fig. 3 is the vertical view that amplify the part at the node place of composite dot-matrix of the present utility model;
Fig. 4 is along the cutaway view of A-A ' line among Fig. 3;
Fig. 5 cuts away the schematic diagram of wedge angle for the top of depression bar;
Fig. 6 is the integrally-built front view of composite dot-matrix structure of the present utility model;
Fig. 7 is the integrally-built side view of composite dot-matrix structure of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, and the utility model is described in further detail by embodiment.
As shown in Figure 1, composite dot-matrix structure of the present utility model comprises: top panel, lower panel, depression bar 1, wire drawing 2 and rivet 6; Wherein, top panel is the relative two panels of inner surface with lower panel; Corresponding position at the inner surface of upper and lower panel is provided with the depression bar groove, and the two ends of depression bar are inserted respectively in the corresponding depression bar groove of upper and lower panel and supported upper and lower panel; Upper and lower panel also is provided with the wire drawing hole of getting through panel, and wire drawing is passed panel from the braiding of wire drawing hole, and relative upper and lower two panels tractive is fixed.Top panel and lower panel comprise skin panel 4, thickening plate 5 and the Die and mould plate 3 of tight bond successively respectively, and the Die and mould plate of two panels is relative.
Fig. 2 is the front view that amplify the part at the node place of composite dot-matrix of the present utility model, and Fig. 3 be the vertical view of part amplification at the node place of composite dot-matrix of the present utility model, and Fig. 4 is along the cutaway view of A-A ' line among Fig. 3.As shown in Figure 3 and Figure 4, the two ends of each depression bar groove 8 are respectively arranged with wire drawing hole 7, on the line of centres that is centered close to wire drawing hole 7 of depression bar groove 8.Wire drawing 2 passes panel from the wire drawing hole 7 of depression bar groove 8 one ends of a panel, wear around the wire drawing hole 7 to depression bar groove 8 other ends through the outer surface of skin panel 4 and penetrate panel, thereby wire drawing 2 catches depression bar 1.Further, between per two depression bars 1, a rivet 6 is set.
Fig. 5 cuts away the schematic diagram of wedge angle for the top of depression bar.
Fig. 6 is the integrally-built front view of composite dot-matrix structure of the present utility model; Fig. 7 is the integrally-built side view of composite dot-matrix structure of the present utility model.
Embodiment one
The preparation method of present embodiment may further comprise the steps:
1) preparation panel: panel is made up of skin panel 4, thickening plate 5, Die and mould plate 3, prepare Die and mould plate earlier, according to design size cutting die plate, spacing according to depression bar on Die and mould plate is rule, the depression bar position is determined in crosspoint by horizontal and vertical line, utilize the manual surface finish plucking of abrasive machine polishing sheet with Die and mould plate and thickening plate, with epoxide-resin glue Die and mould plate and thickening plate are bondd, apply certain pressure Die and mould plate and thickening plate are fitted fully, the drill bit that re-uses 16mm is suppressed the bar groove in the depression bar position of two Die and mould plates; On skin panel, determine simultaneously the position in wire drawing hole, and on skin panel, punch with the drill bit of 4mm according to designing requirement; To descend the assembling of skin panel and mounted Die and mould plate again, and use clamp, clamp the back, and make panel become integral body with riveting gun riveter nail 6 on panel;
2) preparation depression bar and installation and curing:
Depression bar is installed in preparation: determines the stressed size of every depression bar according to designing requirement, chooses satisfactory depression bar according to the stressed size of depression bar,
The depression bar that pressure is bigger adopts the higher carbon glass fiber hybrid composite pultrusion rod of compression strength, and carbon fiber and content of glass fiber are 50%, and caliber 10mm, other depression bars that are stressed bigger adopt solid glass fiber pultrusion rod caliber 10mm; Stressed less depression bar adopts the carbon pipe of lighter, the inner filled and process material of weight, caliber 8mm, thickness of pipe wall 1mm,
Every depression bar is cut to respective angles according to angle so that the end face of depression bar and skin panel are just in time fitted, and utilize abrasive machine that the top wedge angle of depression bar is polished, withstand skin panel with the front end wedge angle that prevents depression bar and cause perk, add counterweight when solidifying for convenience, 5mm is reserved in the rod member upper end, puts depression bar well according to the numbering of depression bar;
Solidify: in the depression bar groove, fill up epoxide-resin glue after assembling finishes, behind the encapsulating end of operation depression bar front end is pushed down with sandbag, to prevent that depression bar from floating in the colloid solidification process, put into curing oven, after waiting to solidify end the 5mm length of upper end reservation is cut away, will go up the end-post wedge angle with icking tool after cutting away and polish; The curing another side uses the same method;
3) preparation wire drawing hole: after treating that upper and lower panel solidifies end fully, again punch with the torch commentaries on classics on skin panel, boring good wire drawing hole before, punch the wire drawing hole of beating 5mm and 4mm according to the wire drawing diameter specifically, 10 carbon filament+25 Gen Kaifula or 10 carbon filament+20 Gen Kaifula are adopted in the wire drawing hole wire drawing of 5mm, 5 carbon filament+15 Gen Kaifula are adopted in the wire drawing of 4mm wire drawing hole, with electronic little sand commentaries on classics polished to prevent sharply partly to shear wire drawing around the wire drawing hole in the wire drawing hole, re-use sand paper after electronic prayer book polishing is finished and carry out manual grinding, polishing is not till go out obvious acute angle with the hand touch perception, and the wire drawing hole completes;
4) make wire drawing: match well and the wire drawing of diameter according to the stressed size preparation different materials of wire drawing, be positioned on the long platform wire drawing is stretching, wire drawing is spread out, adopt the mode of bright gluing, give wire drawing brushwork epoxy resin glue with small brushes,, fully beat sth. made by twisting the complete impregnation of wire drawing;
5) wear around wire drawing: adopt manual mode to wear wire drawing, the two ends of every depression bar groove are provided with a wire drawing hole, wire drawing is passed panel from the wire drawing hole of a panel, wear around to adjacent wire drawing hole through outer surface, from then on the wire drawing hole penetrates panel, and tractive is to relative panel, from then on the wire drawing hole of panel passes panel again, and track and column braiding and so forth is till catching all depression bars with wire drawing, wire drawing is worn around finishing, to collapse when wearing wire drawing tightly, will guarantee to catch depression bar simultaneously, in order to avoid cause bad result, wear to pull and finish carbon granules+epoxy resin is filled up in the back in the space in wire drawing hole mixture, put into the baking oven integral solidifying.
Embodiment two
Present embodiment before skin panel and thickening plate are fitted, pastes a measure-alike glass fibre with skin panel between skin panel and thickening plate in step 1), to prevent the depression bar skin panel of crushing, other steps are identical with embodiment one.
It should be noted that at last, the purpose of publicizing and implementing mode is to help further to understand the utility model, but it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the utility model and appended claim, various substitutions and modifications all are possible.Therefore, the utility model should not be limited to the disclosed content of embodiment, and the claimed scope of the utility model is as the criterion with the scope that claims define.
Claims (8)
1. a composite dot-matrix structure is characterized in that, described composite dot-matrix structure comprises: the composite dot-matrix structure comprises: top panel, lower panel, depression bar (1) and wire drawing (2); Wherein, described top panel is the relative two panels of inner surface with lower panel; Corresponding position at the inner surface of upper and lower panel is provided with depression bar groove (8), and the two ends of depression bar (1) are inserted respectively in the corresponding depression bar groove (8) of upper and lower panel and supported upper and lower panel; Described upper and lower panel also is provided with the wire drawing hole (7) of getting through panel, and wire drawing (2) is passed panel from wire drawing hole (7) braiding, and relative upper and lower two panels tractive is fixed.
2. composite dot-matrix structure as claimed in claim 1 is characterized in that, described top panel and lower panel comprise the skin panel of tight bond (4), thickening plate (5) and Die and mould plate (3) successively respectively, and the Die and mould plate of two panels (3) is relative.
3. composite dot-matrix structure as claimed in claim 2 is characterized in that, gets through the Die and mould plate (3) of panel and thickening plate (5) inner surface to skin panel (4), forms depression bar groove (8); Described depression bar (1) embeds in the panel by depression bar groove (8), and encapsulating is fixed.
4. composite dot-matrix structure as claimed in claim 1 is characterized in that, fills up colloid, hot setting in the described wire drawing hole (7).
5. composite dot-matrix structure as claimed in claim 1 is characterized in that, described panel is provided with rivet (6), and rivet (6) runs through panel.
6. composite dot-matrix structure as claimed in claim 1 is characterized in that, the two ends of each described depression bar groove (8) are respectively arranged with wire drawing hole (7), on the line of centres that is centered close to wire drawing hole (7) of depression bar groove (8).
7. composite dot-matrix structure as claimed in claim 1 is characterized in that, lays layer of glass between described skin panel (4) and thickening plate.
8. composite dot-matrix structure as claimed in claim 3 is characterized in that, described depression bar (1) cuts to respective angles with the end face that skin panel (4) contacts according to angle, so that described depression bar (1) is just in time fitted with skin panel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320090872 CN203093159U (en) | 2013-02-28 | 2013-02-28 | Composite material dot-matrix structure with novel connection between rod member and panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320090872 CN203093159U (en) | 2013-02-28 | 2013-02-28 | Composite material dot-matrix structure with novel connection between rod member and panel |
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| Publication Number | Publication Date |
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| CN203093159U true CN203093159U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320090872 Withdrawn - After Issue CN203093159U (en) | 2013-02-28 | 2013-02-28 | Composite material dot-matrix structure with novel connection between rod member and panel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085363A (en) * | 2013-02-28 | 2013-05-08 | 北京大学 | Novel composite material dot matrix structure for connecting rod piece and panel and preparation method for novel composite material dot matrix structure |
| CN104633436A (en) * | 2015-03-10 | 2015-05-20 | 苏州道众机械制造有限公司 | Assembled compound tube sheet |
| CN104647825A (en) * | 2015-03-10 | 2015-05-27 | 苏州道众机械制造有限公司 | Double-layered composite pipe plate |
| CN104786519A (en) * | 2015-03-30 | 2015-07-22 | 南京航空航天大学 | Forming method of dot matrix reinforced composite material sandwich structure |
-
2013
- 2013-02-28 CN CN 201320090872 patent/CN203093159U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085363A (en) * | 2013-02-28 | 2013-05-08 | 北京大学 | Novel composite material dot matrix structure for connecting rod piece and panel and preparation method for novel composite material dot matrix structure |
| CN103085363B (en) * | 2013-02-28 | 2015-08-12 | 北京大学 | Rod member and novel composite material dot matrix structure be connected of panel and preparation method thereof |
| CN104633436A (en) * | 2015-03-10 | 2015-05-20 | 苏州道众机械制造有限公司 | Assembled compound tube sheet |
| CN104647825A (en) * | 2015-03-10 | 2015-05-27 | 苏州道众机械制造有限公司 | Double-layered composite pipe plate |
| CN104786519A (en) * | 2015-03-30 | 2015-07-22 | 南京航空航天大学 | Forming method of dot matrix reinforced composite material sandwich structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150812 |
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| RGAV | Abandon patent right to avoid regrant |