CN103342164A - Composite flexible bearable deformation skin convenient to install and pre-tighten - Google Patents
Composite flexible bearable deformation skin convenient to install and pre-tighten Download PDFInfo
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- CN103342164A CN103342164A CN2013102743470A CN201310274347A CN103342164A CN 103342164 A CN103342164 A CN 103342164A CN 2013102743470 A CN2013102743470 A CN 2013102743470A CN 201310274347 A CN201310274347 A CN 201310274347A CN 103342164 A CN103342164 A CN 103342164A
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Abstract
The invention discloses a composite flexible bearable deformation skin convenient to install and pre-tighten. The deformation skin comprises a flexible skin base body and fiber reinforced bodies, wherein the fiber reinforced bodies are arranged in the flexible skin base body in parallel in an S-shaped manner, and arc rotating parts and two end heads, which are in parallel in an S-shaped manner, of the fiber reinforced bodies are respectively positioned outside the flexible skin base body. The deformation skin is pre-tightened in a direction parallel to fibers, so that the bearing performance of the deformation skin can be improved; the fiber reinforced bodies form a mesh, and gaps of the whole skin can be limited in the mesh without causing large-area failure of the deformation skin; the deformation skin is easily connected with a machine body, and thus the convenience and the reliability of installation of the deformation skin are improved.
Description
Technical field
The present invention relates to the distortion covering that a kind of compound material flexible of being convenient to install with pretension can carry.
Background technology
In order to make aircraft adapt to different aerial missions, area and shape by changing lifting body proposed in the world to optimize the variant aircraft concept of airworthiness at different state of flights.Its covering need have flexible with suitable variant, and possesses load-carrying capacity to keep the stable of aircraft profile under aerodynamic loading.Existing flexible covering often satisfies the demand of variant, but load-carrying capacity is poor.
For the fiber reinforced composite flexible covering, in order to improve its load-carrying properties, need carry out pretension in the direction that is parallel to fibre reinforcement, its load-carrying properties and predetermincd tension positive correlation.Therefore, covering is very important with being connected of body.And existing covering often needs to connect by modes such as press strips, and its complex process, structural weight are big.
In addition, the breach of flexible covering matrix is very easily expanded, and the appearance of place's breach may cause the inefficacy of whole covering.
Summary of the invention
The objective of the invention is to improve the load-carrying properties of flexible covering, the distortion covering that provides a kind of compound material flexible of being convenient to install with pretension to carry.
The technology used in the present invention is as follows:
The distortion covering that a kind of compound material flexible of being convenient to install with pretension can carry, comprise the flexible covering matrix, be characterized in: also comprise fibre reinforcement, fibre reinforcement becomes snakelike arrangement in the flexible covering matrix, the arcuation rotating part of its snakelike arrangement and two terminations lay respectively at flexible covering matrix outside.
The present invention also has following feature:
When above-described fibre reinforcement was a plurality of, adjacent fibre reinforcement became the orthogonal arrangement in twos of upper and lower layered laminate, formed cellular structure.
The present invention has following advantage:
1, carries out pretension in the direction that is parallel to fiber, then can improve the load-carrying properties of this covering;
2, fibre reinforcement forms grid, and then the breach of collective can be restricted in the grid and can not cause the large tracts of land of covering to lose efficacy;
3, be easy to be connected with body, improved comfort feature and reliability that covering is installed.
Description of drawings
Fig. 1 is structural representation of the present invention;
The specific embodiment
The distortion covering that a kind of compound material flexible of being convenient to install with pretension can carry, comprise flexible covering matrix 2, this covering also comprises fibre reinforcement 1, fibre reinforcement 1 becomes snakelike arrangement in flexible covering matrix 2, the arcuation rotating part 3 of its snakelike arrangement and two terminations 4 lay respectively at flexible covering matrix outside.
According to one embodiment of present invention, adopt one group of Kafra fiber to strengthen body, when carrying out the pretension perpendicular to machine direction, behind the stretching covering its edge is fixed in body with press strip, when being parallel to the pretension of machine direction, cyclic structure being articulated on the pre-tightening apparatus with hook and to pre-tightening apparatus loading to realize pretension.This covering can carry out shear and perpendicular to the unilateral stretching variant of fibre reinforcement;
According to one embodiment of present invention, adopt one group of Kafra fiber to strengthen body, when being parallel to the pretension of machine direction, body two side skins are covered the relevant position simultaneously, the cyclic structure that will keep the end of a thread of certain tension force alternately to pass two side skins repeatedly afterwards, sew up the connection of formula, can control the predetermincd tension of covering by the tension force of control the end of a thread.This covering can carry out shear and perpendicular to the unilateral stretching variant of fibre reinforcement;
Embodiment 4
According to one embodiment of present invention, fibre reinforcement is one group of snakelike carbon fiber bundle of arranging and being paved with whole covering area, does not carry out other pretensions after being parallel to the pretension of machine direction, loose covering edge is sticked with glue agent be fixed in body.This covering can carry out shear and perpendicular to the unilateral stretching variant of fibre reinforcement;
Embodiment 5
According to one embodiment of present invention, fibre reinforcement is two groups of orthogonal rigid fibers of the part in covering, during installation covering is parallel to the pretension of two groups of fibers.This covering can carry out shear;
Embodiment 6
According to one embodiment of present invention, adopt one group of rigid fiber to strengthen body and one group of elastic fibre enhancing body, the part of two groups of fibre reinforcements in covering is vertical mutually, and keeps preferably the interface to be combined with the covering matrix, during installation covering is parallel to the pretension of two groups of fibers.This covering can carry out shear and strengthen the unilateral stretching variant of body perpendicular to rigid fiber, and the breach of matrix is restricted in two groups of fibrous minimum grids and is difficult for causing the covering large tracts of land to lose efficacy.
Embodiment 7
The preparation method of the distortion covering that a kind of compound material flexible of being convenient to install with pretension can carry:
1) preparation
Cast one deck silaatic can be controlled the consistency and elasticity modulus of covering matrix by changing the silaatic proportioning earlier;
With a branch of Kafra fiber with snakelike continuous laying at the silastic surface of having poured into a mould, make adjacent fiber Shu Pinghang and equidistant, and form some loop configuration and two terminations at two ends;
On the material of oneself laying fiber, pour into a mould one deck silaatic again;
A branch of elastic fibre along the direction perpendicular to Kafra fiber, is laid on the silastic surface of having poured into a mould in the mode identical with Kafra fiber;
On the material of laying fiber, pour into a mould one deck silaatic again;
Silaatic solidifies the back and forms described composite material skin.
2) installation and pretension
During installation, make Kafra fiber is in does not have normal strain in the variant process direction.
The pretension that is parallel to the Kafra fiber direction can improve the load-carrying properties of covering.Pretension has following 2 kinds of modes:
2.1) loop configuration is fixed on the dependency structure of body, if cladding hook; Adopt the relevant apparatus on the body to carry out pretension afterwards;
2.2) with the cyclic structure that offside and this side skin are alternately passed in the termination of body one side skin, fix and pretension with suture way, predetermincd tension can be by the tension force control of termination.
For the covering that carries out the shear variant, need be parallel to the pretension of elastic fibre direction.Increase its pretension deformation quantity or improve covering thickness the gauffer of covering in the time of can preventing that the variant deflection is big.
Claims (2)
1. distortion covering that the compound material flexible of being convenient to install with pretension can carry, comprise the flexible covering matrix, it is characterized in that: also comprise fibre reinforcement, fibre reinforcement becomes snakelike arrangement in parallel in the flexible covering matrix, the arcuation rotating part of its snakelike arrangement in parallel and two terminations lay respectively at flexible covering matrix outside.
2. a kind of compound material flexible of being convenient to install with pretension according to claim 1 distortion covering that can carry, it is characterized in that: when described fibre reinforcement is a plurality of, adjacent fibre reinforcement becomes the orthogonal arrangement in twos of upper and lower layered laminate, forms cellular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310274347.0A CN103342164B (en) | 2013-06-25 | 2013-06-25 | The deformation skin that a kind of compound material flexible being convenient to installation and pretension can carry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310274347.0A CN103342164B (en) | 2013-06-25 | 2013-06-25 | The deformation skin that a kind of compound material flexible being convenient to installation and pretension can carry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103342164A true CN103342164A (en) | 2013-10-09 |
| CN103342164B CN103342164B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310274347.0A Active CN103342164B (en) | 2013-06-25 | 2013-06-25 | The deformation skin that a kind of compound material flexible being convenient to installation and pretension can carry |
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| CN (1) | CN103342164B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401497A (en) * | 2014-11-19 | 2015-03-11 | 中国航空工业集团公司沈阳飞机设计研究所 | Flexible envelope for self-adaption swell air inlet channel |
| CN105864332A (en) * | 2016-05-16 | 2016-08-17 | 南京航空航天大学 | Metal spring for flexible cover |
| CN111674541A (en) * | 2020-05-25 | 2020-09-18 | 哈尔滨工业大学 | Flexible composite skin, manufacturing method thereof and tool structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1950200A (en) * | 2004-02-10 | 2007-04-18 | 波音公司 | Aluminum-fiber laminate |
| CN101879941A (en) * | 2010-07-27 | 2010-11-10 | 哈尔滨工业大学 | Variable-rate wing covering |
| CN102615868A (en) * | 2012-03-29 | 2012-08-01 | 哈尔滨工业大学 | Network cable skin strength-bearing material |
| CN102642611A (en) * | 2012-04-24 | 2012-08-22 | 哈尔滨工业大学 | Actively deformed stressed-skin structure based on pneumatic muscles |
| US20130266765A1 (en) * | 2010-10-07 | 2013-10-10 | Airbus Operations Gmbh | Structural component, aircraft or spacecraft, and method |
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2013
- 2013-06-25 CN CN201310274347.0A patent/CN103342164B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1950200A (en) * | 2004-02-10 | 2007-04-18 | 波音公司 | Aluminum-fiber laminate |
| CN101879941A (en) * | 2010-07-27 | 2010-11-10 | 哈尔滨工业大学 | Variable-rate wing covering |
| US20130266765A1 (en) * | 2010-10-07 | 2013-10-10 | Airbus Operations Gmbh | Structural component, aircraft or spacecraft, and method |
| CN102615868A (en) * | 2012-03-29 | 2012-08-01 | 哈尔滨工业大学 | Network cable skin strength-bearing material |
| CN102642611A (en) * | 2012-04-24 | 2012-08-22 | 哈尔滨工业大学 | Actively deformed stressed-skin structure based on pneumatic muscles |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401497A (en) * | 2014-11-19 | 2015-03-11 | 中国航空工业集团公司沈阳飞机设计研究所 | Flexible envelope for self-adaption swell air inlet channel |
| CN105864332A (en) * | 2016-05-16 | 2016-08-17 | 南京航空航天大学 | Metal spring for flexible cover |
| CN105864332B (en) * | 2016-05-16 | 2018-05-08 | 南京航空航天大学 | A kind of metal spring for flexible covering |
| CN111674541A (en) * | 2020-05-25 | 2020-09-18 | 哈尔滨工业大学 | Flexible composite skin, manufacturing method thereof and tool structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103342164B (en) | 2016-01-27 |
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