CN108725751A - A kind of deformable sheet structure containing pneumatic unit cell - Google Patents
A kind of deformable sheet structure containing pneumatic unit cell Download PDFInfo
- Publication number
- CN108725751A CN108725751A CN201810798963.9A CN201810798963A CN108725751A CN 108725751 A CN108725751 A CN 108725751A CN 201810798963 A CN201810798963 A CN 201810798963A CN 108725751 A CN108725751 A CN 108725751A
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- CN
- China
- Prior art keywords
- unit cell
- pneumatic unit
- section
- shaped
- bar shaped
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/38—Adjustment of complete wings or parts thereof
- B64C3/44—Varying camber
- B64C3/46—Varying camber by inflatable elements
Abstract
The invention discloses a kind of deformable sheet structures containing pneumatic unit cell, including symmetrically arranged two plates of minute surface；Plate includes the pneumatic unit cell of multiple bar shapeds；The section of the pneumatic unit cell of bar shaped is heart-shaped in class, and the section of the pneumatic unit cell of bar shaped includes mirror-symmetrical left heart-shaped section and right heart-shaped section；Left heart section lower end connect with right heart-shaped section lower end, and left heart section upper end is connected with right heart section upper end by arc section, and arc section is to the pneumatic unit cell internal projection of the bar shaped；Plane connection is connected by the side of the pneumatic unit cell both sides of bar shaped between the pneumatic unit cell of adjacent bar on same plate；It is connected by the lower connection plane of the pneumatic unit cell lower end of bar shaped between the pneumatic unit cell of adjacent bar on different plates.The present invention can make the pneumatic unit cell of bar shaped have certain bearing capacity by adjusting the wall thickness of the pneumatic unit cell of bar shaped；By to the pneumatic unit cell preacceleration inflation of each bar shaped, adjusting the overall stiffness of the present invention, to make the present invention that there is bearing capacity.
Description
Technical field
The present invention relates to a kind of deformable sheet structure containing pneumatic unit cell, belong to organism bionics and can variant structure neck
Domain can be widely applied to deformable aircraft field in aerospace.
Background technology
The comprehensive performance for promoting aircraft is all pursuing a goal for aircraft designers all the time.From flying for nature birds
We can much be enlightened for row movement, and wing deformation can effectively change its state of flight, meet friction speed flight item
Energy expenditure is minimum under part.Pneumatic single cell structure is that have bearing capacity and deformation output work based on what Topology Optimization Method designed
Single packet of energy, according to certain regularly arranged composition, with light-weight, bearing capacity is strong, output displacement is big, response is fast, deformation
The advantages that control accuracy height, same structure can realize various deformation, applies and disclosure satisfy that fuel tank shape on fuel tanker covering
Shape deforms with the change of amount of fuel, to reduce the resistance of aircraft, has in aerospace field and widely answers
Use foreground.
With the development of new material, new construction, new control technology, the research of the aircraft in relation to adaptive continuous modification
It is vigorously developed.Existing machinery variant structure itself is complicated, and the deformation of the intellectual materials such as marmem (SMA)
Ability is limited, it is difficult to meet requirement of the deformable aircraft to morphing：One kind is closed with the locking of deflection hinge, shape memory
Gold driving can variant structure, deform function since marmem needs could realize under specific temperature transition, from
And limit this can variant structure response speed, in addition marmem there is also deformation output it is small, be used for a long time work
The disadvantage of stability difference, it is difficult to meet the requirement of deformable aircraft；A kind of wingfold mechanism of variant aircraft, mechanical structure
Complexity, part is numerous, and assembly, maintenance cost are high, is realizing that the while of deforming cannot meet the requirement of wing light-weight design.
Therefore, comprehensive analysis at present various wings can variant structure there are the problem of discovery, it is existing be based on intelligence structure
It is still in the conceptual approach stage with the deformable aircraft of material, also has prodigious distance apart from Practical, there is an urgent need for a kind of heavy
Amount is light, bearing capacity is strong, various deformation can be achieved and Deformation control is with high accuracy can variant structure.
Invention content
In order to overcome it is existing can deformation output existing for variant structure be discontinuous, deformation accuracy is difficult to control, the response time
It is long, can only realize that technical problems, the present invention such as single deformation, variant structure weight be big propose a kind of containing the deformable of pneumatic unit cell
Harden structure enables fuel tanker covering to realize various deformation, to reduce resistance when aircraft flight, and then reduces energy and disappears
Consumption.
The technological means that the present invention uses is as follows：
A kind of deformable sheet structure containing pneumatic unit cell, including symmetrically arranged two plates of minute surface；
The plate includes the pneumatic unit cell of multiple bar shapeds；
The section of the pneumatic unit cell of bar shaped is heart-shaped in class, and the section of the pneumatic unit cell of bar shaped includes a mirror-symmetrical left side
Heart-shaped section and right heart-shaped section, axis of the plane perpendicular to the pneumatic unit cell of the bar shaped where the section of the pneumatic unit cell of bar shaped；
The left heart-shaped section lower end is connected with the right heart-shaped section lower end, the left heart-shaped section upper end and the right heart-shaped section
Upper end is connected by arc section, and the arc section is to the pneumatic unit cell internal projection of the bar shaped；
Pass through the pneumatic unit cell both sides of the bar shaped between the adjacent pneumatic unit cell of bar shaped on the same plate
Side connects plane connection；
Pass through the pneumatic unit cell lower end of the bar shaped between the adjacent pneumatic unit cell of bar shaped on the different plates
Lower connection plane connection；
It under working condition, is inflated into the pneumatic unit cell of the bar shaped, the left and right sides of the pneumatic unit cell of bar shaped is to abduction
It opens, the curvature of the arc section becomes smaller, and after inflation, the rigidity of the pneumatic unit cell of bar shaped improves, to have certain carrying
Ability, the size of the plate can be changed in the size for adjusting the pneumatic unit cell of the bar shaped, so as to applied to each in engineering
Field changes the pressurising size in the pneumatic unit cell of the bar shaped, can adjust the deformation extent of the pneumatic unit cell of the bar shaped.
The material of the pneumatic unit cell of bar shaped is rubber, carbon fiber or aluminium.
The section of the side connection plane is located at the outer convex of the corresponding left heart-shaped section or the right heart-shaped section, institute
Axis of the plane perpendicular to the pneumatic unit cell of the bar shaped where stating the section of side connection plane；
The section of the lower connection plane is located at the junction of the left heart-shaped section lower end and the right heart-shaped section lower end, institute
Axis of the plane perpendicular to the pneumatic unit cell of the bar shaped where stating the section of lower connection plane.
Beneficial effects of the present invention：
(1) it can make the pneumatic unit cell of bar shaped that there is certain bearing capacity by adjusting the wall thickness of the pneumatic unit cell of bar shaped；
It (2) can be by the pneumatic unit cell preacceleration inflation of each bar shaped, the overall stiffness of the present invention being adjusted, to make tool of the present invention
There is bearing capacity；
(3) it is accumulated by the deformation of the pneumatic unit cell of each bar shaped, prodigious deformation effect can be reached, to realize this hair
Bright large deformation effect；
(4) by adjusting the pneumatic unit cell quantity of bar shaped and the blowing pressure, complicated and continuous modification may be implemented, by right
The control of the pneumatic unit cell of each bar shaped, may be implemented to accurately control structure of the invention；
(5) flexural deformation up and down and more complex " S " deformation may be implemented in the present invention.
Based on the above reasons the present invention can organism bionics and can the fields such as variant structure be widely popularized.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 be the present invention specific implementation mode in the pneumatic unit cell of bar shaped schematic cross-section；
Fig. 2 be the present invention specific implementation mode in deformable sheet structure and its functional regional division containing pneumatic unit cell show
It is intended to；
Fig. 3 be the present invention specific implementation mode in the deformable sheet structure containing pneumatic unit cell upper bending schematic diagram；
Fig. 4 be the present invention specific implementation mode in the deformable sheet structure containing pneumatic unit cell lower bending schematic diagram；
Fig. 5 be the present invention specific implementation mode in the deformable sheet structure containing pneumatic unit cell " S " deformation schematic diagram.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As Figure 1-Figure 5, a kind of deformable sheet structure containing pneumatic unit cell, including symmetrically arranged two plates of minute surface；
The plate includes the pneumatic unit cell of multiple bar shapeds 1；
The section of the pneumatic unit cell of the bar shaped 1 is heart-shaped in class, and the section of the pneumatic unit cell of the bar shaped 1 includes mirror-symmetrical
Left heart section 2 and right heart-shaped section 3；
Left heart-shaped 2 lower end of section is connected with 3 lower end of the right heart-shaped section, left heart-shaped 2 upper end of section and the right heart
3 upper end of shape section is connected by arc section 4, and the arc section 4 is to pneumatic 1 internal projection of unit cell of the bar shaped；
Pass through pneumatic 1 both sides of unit cell of the bar shaped between the pneumatic unit cell of the adjacent bar shaped on the same plate 1
Side connection plane 5 connect；
Pass through pneumatic 1 lower end of unit cell of the bar shaped between the pneumatic unit cell of the adjacent bar shaped on the different plates 1
Lower connection plane 6 connection；
It under working condition, is inflated into the pneumatic unit cell of the bar shaped 1, the left and right sides of the pneumatic unit cell of the bar shaped 1 is outside
Expansion, the curvature of the arc section 4 become smaller.
The material of the pneumatic unit cell of the bar shaped 1 is rubber, carbon fiber or aluminium.
The section of the side connection plane 5 is located at the evagination of the corresponding left heart-shaped section 2 or the right heart-shaped section 3
Place；
The section of the lower connection plane 6 is located at the connection of 3 lower end of left heart-shaped 2 lower end of section and the right heart-shaped section
Place.
As shown in Fig. 2, the deformable sheet structure containing pneumatic unit cell is divided into region 1~6, each region includes more
The pneumatic unit cell of a bar shaped 1.
The pneumatic unit cell 1 of the bar shaped in region 1~3 is inflated, it is curved under the deformable sheet structure containing pneumatic unit cell
Song, as shown in Figure 4；
The pneumatic unit cell 1 of the bar shaped in region 4~6 is inflated, it is curved in the deformable sheet structure containing pneumatic unit cell
Song, as shown in Figure 3；
The pneumatic unit cell 1 of the bar shaped in region 1, region 3 and region 5 is inflated, it is described containing the deformable of pneumatic unit cell
Harden structure is deformed in " S ", as shown in Figure 5
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (3)
1. a kind of deformable sheet structure containing pneumatic unit cell, which is characterized in that including symmetrically arranged two plates of minute surface；
The plate includes the pneumatic unit cell of multiple bar shapeds；
The section of the pneumatic unit cell of bar shaped is heart-shaped in class, and the section of the pneumatic unit cell of bar shaped includes mirror-symmetrical left heart
Section and right heart-shaped section；
The left heart-shaped section lower end is connected with the right heart-shaped section lower end, the left heart-shaped section upper end and the right heart-shaped section upper end
It is connected by arc section, the arc section is to the pneumatic unit cell internal projection of the bar shaped；
Connected by the side of the pneumatic unit cell both sides of the bar shaped between the adjacent pneumatic unit cell of bar shaped on the same plate
Connect plane connection；
Pass through the lower company of the pneumatic unit cell lower end of the bar shaped between the adjacent pneumatic unit cell of bar shaped on the different plates
Connect plane connection；
It under working condition, is inflated into the pneumatic unit cell of the bar shaped, the left and right sides of the pneumatic unit cell of bar shaped is unfolded outward, institute
The curvature for stating arc section becomes smaller.
2. the deformable sheet structure according to claim 1 containing pneumatic unit cell, it is characterised in that：The pneumatic unit cell of bar shaped
Material be rubber, carbon fiber or aluminium.
3. the deformable sheet structure according to claim 1 containing pneumatic unit cell, it is characterised in that：The side connection plane
Section is located at the outer convex of the corresponding left heart-shaped section or the right heart-shaped section；
The section of the lower connection plane is located at the junction of the left heart-shaped section lower end and the right heart-shaped section lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798963.9A CN108725751B (en) | 2018-07-19 | 2018-07-19 | Deformable plate structure containing pneumatic unit cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798963.9A CN108725751B (en) | 2018-07-19 | 2018-07-19 | Deformable plate structure containing pneumatic unit cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108725751A true CN108725751A (en) | 2018-11-02 |
| CN108725751B CN108725751B (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810798963.9A Active CN108725751B (en) | 2018-07-19 | 2018-07-19 | Deformable plate structure containing pneumatic unit cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392029A (en) * | 2020-02-25 | 2020-07-10 | 浙江工业大学 | Pneumatic driven multistable structure |
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| CN101708772A (en) * | 2009-11-24 | 2010-05-19 | 南京航空航天大学 | Skin of morphing wing and drive method thereof |
| CN102642611A (en) * | 2012-04-24 | 2012-08-22 | 哈尔滨工业大学 | Actively deformed stressed-skin structure based on pneumatic muscles |
| CN103158859A (en) * | 2013-04-07 | 2013-06-19 | 哈尔滨工业大学 | Transformable inflatable extensible wing driven by piezoelectric fiber composite material |
| CN104443346A (en) * | 2014-11-13 | 2015-03-25 | 南京航空航天大学 | Large-deformation composite material with flexible cellular structure and preparation method of large-deformation composite material |
| CN107757860A (en) * | 2017-10-18 | 2018-03-06 | 苏州因诺威汽车科技有限公司 | Active deformation honeycomb covering based on pneumatic muscles |
| CN108190034A (en) * | 2017-12-15 | 2018-06-22 | 中国航空工业集团公司成都飞机设计研究所 | A kind of flexibility variant structure |
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2018
- 2018-07-19 CN CN201810798963.9A patent/CN108725751B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708772A (en) * | 2009-11-24 | 2010-05-19 | 南京航空航天大学 | Skin of morphing wing and drive method thereof |
| CN102642611A (en) * | 2012-04-24 | 2012-08-22 | 哈尔滨工业大学 | Actively deformed stressed-skin structure based on pneumatic muscles |
| CN103158859A (en) * | 2013-04-07 | 2013-06-19 | 哈尔滨工业大学 | Transformable inflatable extensible wing driven by piezoelectric fiber composite material |
| CN104443346A (en) * | 2014-11-13 | 2015-03-25 | 南京航空航天大学 | Large-deformation composite material with flexible cellular structure and preparation method of large-deformation composite material |
| CN107757860A (en) * | 2017-10-18 | 2018-03-06 | 苏州因诺威汽车科技有限公司 | Active deformation honeycomb covering based on pneumatic muscles |
| CN108190034A (en) * | 2017-12-15 | 2018-06-22 | 中国航空工业集团公司成都飞机设计研究所 | A kind of flexibility variant structure |
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Cited By (1)
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| CN111392029A (en) * | 2020-02-25 | 2020-07-10 | 浙江工业大学 | Pneumatic driven multistable structure |
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| Publication number | Publication date |
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| CN108725751B (en) | 2020-02-18 |
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