CN107293861A - Based on the external winding rib Large Deployable reflecting surface of center deformation truss - Google Patents
Based on the external winding rib Large Deployable reflecting surface of center deformation truss Download PDFInfo
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- CN107293861A CN107293861A CN201710459006.9A CN201710459006A CN107293861A CN 107293861 A CN107293861 A CN 107293861A CN 201710459006 A CN201710459006 A CN 201710459006A CN 107293861 A CN107293861 A CN 107293861A
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- reflecting surface
- truss
- center
- center deformation
- deformation truss
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
Based on the external winding rib Large Deployable reflecting surface of center deformation truss, it is related to large-scale winding ribbed expansion parabola antenna technical field.Center deformation truss is regular polygon truss, each bifurcated floor leading-edge panel side short side post corresponding with center deformation truss is connected through the hinge, reflecting surface geometric configuration is offset-fed paraboloid, the back side central area in reflecting surface exterior normal direction and the tensioning back of the body net forming of deformation truss support, lower edges of boards outside central area with multiple SYMMETRIC BIFURCATION floors are affixed, the excessively multiple control shape regulation ropes of tensioning back of the body Netcom are connected with reflecting surface, support arm one end at the top edge short side post node of center deformation truss with being hinged, the support arm other end is hinged with satellite body, feed is corresponding with reflecting surface at parabolic focus, feed is fixedly mounted on satellite body by waveguide.It uses the integrated morphology for having floor skeleton outside exoskeletal in the rope-mesh type of center, with very high area-mass ratio advantage, deploys highly reliable, while eliminating occlusion effect.
Description
Technical field
Deploy parabola antenna technical field the present invention relates to large-scale winding ribbed, be based especially on outside center deformation truss
Connect winding rib Large Deployable reflecting surface.
Background technology
Develop today with rapid changepl. never-ending changes and improvements in space technology, how to be more effectively combined between reflecting surface and satellite, one
It is directly the problem of scientific research personnel of space industry attaches great importance to.Hoop truss tensioning net reflecting surface deploys reflecting surface with winding rib
There is respective defect in two kinds of relatively common at present reflectings surface, both of which.The truss depth of hoop truss tensioning net reflecting surface
Design by transmitting volumetric constraint, it is desirable to the height of hoop truss be more than carrier rocket radome fairing height, space-consuming compared with
Greatly.And the support arm that the center for winding rib expansion reflecting surface is connected with satellite body is long, folding and expanding joint number is excessive, causes knot
Structure amount of deflection is big, the problem of expansion reliability is low.Just presented in addition, being commonly feed during current reflector design, there is feed
The problem of occlusion effect is also non-negligible.
The content of the invention
It is an object of the invention to provide based on the external winding rib Large Deployable reflecting surface of center deformation truss, it is used
The interior exoskeletal outer structure for having a skeleton, with very high area-mass ratio advantage, deploys highly reliable, while eliminating occlusion effect.
Above-mentioned purpose is realized, the present invention takes following technical proposals：Based on center deformation truss it is external winding rib is large-scale can
Deploy reflecting surface, including center deformation truss, reflecting surface, tensioning back of the body net, support arm, feed, multiple bifurcated floors and multiple
Shape regulation rope is controlled, described center deformation truss is the regular polygon truss of even number rectangle frame units shared short side composition, institute
The multiple bifurcated floors stated are the variable cross-section thin plate of SYMMETRIC BIFURCATION, each described bifurcated floor leading edge and center deformation purlin
Frame correspondence rectangle frame unit short side post is connected through the hinge, and described reflecting surface is geometry offset-fed paraboloid, the reflecting surface back of the body
Face central area is connected with the tensioning back of the body net of deformation truss support with control shape regulation rope, outside the central area of the reflecting surface back side and many
The lower edges of boards of individual bifurcated floor are affixed, and described tensioning back of the body net is located inside center deformation truss, the excessively multiple controls of tensioning back of the body Netcom
Shape adjusts rope along exterior normal direction and reflecting surface back side point-to-point connection, and described support arm one end is upper with center deformation truss
It is hinged at edge short side post node, the support arm other end is hinged with satellite body, described feed is overlapped positioned at reflecting surface focus
Position, feed is fixedly mounted on satellite body by waveguide.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is by traditional hoop truss tensioning net reflection
Face optimizes with winding rib expansion reflecting surface and combine with improving, and is had complementary advantages, and exoskeletal outer has dividing for skeleton using interior
Area is designed, and solves the truss depth design of hoop truss tensioning net reflecting surface by volume mistake caused by transmitting volumetric constraint
Deploy reliable caused by mechanical arm is long between big the problem of, and the centerbody and satellite body of winding rib expansion reflecting surface
Property it is low the problem of, it is big to draw small volume, developed area in, with very high area-mass ratio advantage, deploys highly reliable, eliminates simultaneously
Occlusion effect.
Brief description of the drawings
Fig. 1 is the mounting structure signal based on the external winding rib Large Deployable reflecting surface of center deformation truss of the present invention
Figure；
Axonometric drawing when Fig. 2 is present invention expansion, support arm and feed are not represented；
Fig. 3 is the outline drawing when present invention is drawn in；
Outline drawing when Fig. 4 is present invention expansion.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present invention is clearly and completely retouched
State, it is clear that described embodiment is only a part of embodiment of invention, rather than whole embodiments, based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made,
Belong to the scope of protection of the invention.
Embodiment one：As shown in Fig. 1 ~ Fig. 4, the invention discloses big based on the external winding rib of center deformation truss
Type deployable reflecting surface, including center deformation truss 1, reflecting surface 3, tensioning back of the body net 4, support arm 6, feed 7, multiple bifurcated floors
2 and it is multiple control shape regulation rope 5, described center deformation truss 1 be even number rectangle frame unit 1-1 share short side composition just
Polygonal truss, described multiple bifurcated floors 2 are the variable cross-section thin plate of SYMMETRIC BIFURCATION, each described bifurcated floor 2
Leading edge rectangle frame unit 1-1 short side posts corresponding with center deformation truss 1 are connected through the hinge, and described reflecting surface 3 is geometric form
Shape offset-fed paraboloid, the back side central area of reflecting surface 3 is connected with the tensioning back of the body net 4 that deformation truss 1 is supported with control shape regulation rope 5,
Lower edges of boards outside the back side central area of reflecting surface 3 with multiple bifurcated floors 2 are affixed, and described tensioning back of the body net 4 becomes positioned at center
Inside shape truss 1, tensioning carries on the back net 4 and adjusts rope 5 along exterior normal direction and the back side point-to-point connection of reflecting surface 3 by multiple control shapes,
Described one end of support arm 6 at the top edge short side post node of center deformation truss 1 with being hinged, the other end of support arm 6 and satellite
Body 8 is hinged, and described feed 7 is located at the focus overlapping positions of reflecting surface 3, and feed 7 is fixedly mounted on satellite sheet by waveguide
On body 8.Quantity and the position of rope 5 are adjusted by setting control shape, and adjusts size and the direction of tension force, reflecting surface 3 is met throwing
Thing line equationy=ax 2, tensioning back of the body net 4 and control shape regulation rope 5 are flexible materials, can be with when center deformation 1 centripetal folding of truss
Structure one changes.
Embodiment two：As shown in Fig. 2 present embodiment is that embodiment one is made furtherly
Bright, described center deformation truss 1 shares short side post by multiple vertical rectangle frame unit 1-1 and constitutes regular polygon prism,
Each described rectangle frame unit 1-1 two long sides are horizontally disposed strip flake, each rectangle frame unit 1-1's
Two short sides are the cylinder being vertically arranged, and each rectangle frame unit 1-1 four corner points are fixed with torsion spring,
Strip lamellar 1-2 is respectively and fixedly provided with an each rectangle frame unit 1-1 diagonal.Center deformation truss 1 can pass through
Centripetal folding once realizes that center is drawn in, and each rectangle frame unit 1-1 two stocks are strip flake, each rectangle frame
The strip lamellar 1-2 for stablizing rectangle frame unit 1-1 is fixed with a unit 1-1 diagonal, can be clockwise
Or curling is drawn in counterclockwise, the elastic potential energy that center deformation truss 1 is drawn in during expansion and the moment of torsion bullet of rectangle frame unit 1-1 angle points
Spring is balanced, and realizes low impact expansion process.
Embodiment three：As shown in Fig. 2 present embodiment is that embodiment one is made furtherly
Bright, each described bifurcated floor 2 includes main rib 2-1 and the secondary rib 2-2 of two SYMMETRIC BIFURCATIONs, each described main rib 2-1
The both sides of center constitute acute angle integrated fiber with one rib 2-2 preceding edges of boards by springs respectively and are connected.Piece
Shape spring can make the secondary rib 2-2 of bifurcated be deployed into specified angle.
Embodiment four：As shown in Fig. 2 present embodiment is that embodiment three is made furtherly
Bright, the smooth each described main rib 2-1 and secondary rib 2-2 equal integrated fiber connection of free tail end is excessively a pair of Thin Elastic posts
Shell（9）.Thin Elastic post shell 9 is in in-line when folding and drawing in, stores certain elastic potential energy, is in herringbone, effect after expansion
It is the main rib 2-1 and secondary rib 2-2 that improve bifurcated floor 2 torsional rigidity.
Embodiment five：As shown in Figure 1, 2, present embodiment is that embodiment one is made furtherly
Bright, described reflecting surface 3 is located at parabolic equationy=ax 2Unilateral displacement zone.The reflecting surface 3 of the present invention is offset-fed parabolic
Face, positioned at parabolic equationy=ax 2Unilateral displacement zone, support is fixed by center deformation truss 1 and multiple bifurcated floors 2,
The occlusion effect of reflecting surface 3 and feed 7 can be eliminated.
Embodiment six：As shown in figure 1, present embodiment is that embodiment one is made furtherly
Bright, described support arm 6 is folded in three support arm.It is used for the angle for adjusting reflecting surface 3 using folded in three support arm.
Embodiment seven：As shown in figure 1, present embodiment is that embodiment one is made furtherly
Bright, described feed 7 is the square metal piece containing double oscillators.
Each one end of bifurcated floor 2 is connected through the hinge with the corresponding end points of center deformation truss 1, and the hinge can be realized adjacent
Two rectangle frame unit 1-1 quarter butt produces relative rotation, and can also produce and turn between the main rib 2-1 of corresponding bifurcated floor 2
It is dynamic.
The mechanical support arm of traditional wound rib will be connected to satellite body, the minimum length that support arm needs by central dram
Equal to reflection radius surface, support arm needs minimum length plus reflecting face edge to the distance of satellite body, afterwards again divided by rectification
The height of cover is folds hop count, and the present invention has abandoned traditional center connected mode, but with the top edge of center deformation truss 1
One site position is connected, and effect is the minimum length for reducing support arm needs（It is reduced by about 1/3）, so that structural deflection is reduced,
Strengthen stability.The bifurcated floor 2 of the present invention, without joint, is passively deployed compared with traditional winding rib by elastic potential energy,
But also provided with Thin Elastic post shell 9, improve expansion reliability.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in others dress body forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the condition of equivalent of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. based on the external winding rib Large Deployable reflecting surface of center deformation truss, it is characterised in that：Including center deformation truss
（1）, reflecting surface（3）, tensioning the back of the body net（4）, support arm（6）, feed（7）, multiple bifurcated floors（2）And multiple control shape regulation ropes
（5）, described center deformation truss（1）It is even number rectangle frame unit（1-1）Share the regular polygon truss of short side composition, institute
The multiple bifurcated floors stated（2）It is the variable cross-section thin plate of SYMMETRIC BIFURCATION, each described bifurcated floor（2）Leading edge and center
Deform truss（1）Correspondence rectangle frame unit（1-1）Short side post is connected through the hinge, described reflecting surface（3）It is inclined for geometry
Present parabola, reflecting surface（3）Back side central area and deformation truss（1）The tensioning back of the body net of support（4）With control shape regulation rope（5）Even
Connect, reflecting surface（3）With multiple bifurcated floors outside the central area of the back side（2）Lower edges of boards it is affixed, described tensioning back of the body net（4）Position
In center deformation truss（1）Inside, tensioning back of the body net（4）Rope is adjusted by multiple control shapes（5）Along exterior normal direction and reflecting surface（3）
Back side point-to-point connection, described support arm（6）One end and center deformation truss（1）Top edge short side post node at be hinged,
Support arm（6）The other end and satellite body（8）It is hinged, described feed（7）Positioned at reflecting surface（3）Focus overlapping positions, feed
（7）Satellite body is fixedly mounted on by waveguide（8）On.
2. according to claim 1 based on the external winding rib Large Deployable reflecting surface of center deformation truss, its feature exists
In：Described center deformation truss（1）By multiple vertical rectangle frame units（1-1）Share short side post composition regular polygon prism
Body, each described rectangle frame unit（1-1）Two long sides be horizontally disposed strip flake, each rectangle frame unit
（1-1）Two short sides be the cylinder being vertically arranged, each rectangle frame unit（1-1）Four corner points be fixed with
Torsion spring, each rectangle frame unit（1-1）A diagonal at be respectively and fixedly provided with strip lamellar（1-2）.
3. according to claim 1 based on the external winding rib Large Deployable reflecting surface of center deformation truss, its feature exists
In：Each described bifurcated floor（2）Include main rib（2-1）With the secondary rib of two SYMMETRIC BIFURCATIONs（2-2）, each described master
Rib（2-1）The both sides of center pass through springs and one rib respectively（2-2）Preceding edges of boards constitute the integral chemical fibre of acute angle
Dimension connection.
4. according to claim 3 based on the external winding rib Large Deployable reflecting surface of center deformation truss, its feature exists
In：Each described main rib（2-1）And secondary rib（2-2）The connection of free tail end equal integrated fiber it is smooth be excessively a pair of elasticity
Thin post shell（9）.
5. according to claim 1 based on the external winding rib Large Deployable reflecting surface of center deformation truss, its feature exists
In：Described reflecting surface（3）Positioned at parabolic equationy=ax 2Unilateral displacement zone.
6. according to claim 1 based on the external winding rib Large Deployable reflecting surface of center deformation truss, its feature exists
In：Described support arm（6）For folded in three support arm.
7. according to claim 1 based on the external winding rib Large Deployable reflecting surface of center deformation truss, its feature exists
In：Described feed（7）For the square metal piece containing double oscillators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710459006.9A CN107293861B (en) | 2017-06-16 | 2017-06-16 | Based on the external winding rib Large Deployable reflecting surface of center deformation truss |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710459006.9A CN107293861B (en) | 2017-06-16 | 2017-06-16 | Based on the external winding rib Large Deployable reflecting surface of center deformation truss |
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| Publication Number | Publication Date |
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| CN107293861A true CN107293861A (en) | 2017-10-24 |
| CN107293861B CN107293861B (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710459006.9A Active CN107293861B (en) | 2017-06-16 | 2017-06-16 | Based on the external winding rib Large Deployable reflecting surface of center deformation truss |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767421A (en) * | 2018-06-28 | 2018-11-06 | 哈尔滨工业大学（威海） | A kind of space deployable antenna supporting mechanism |
| CN116505224A (en) * | 2023-06-29 | 2023-07-28 | 齐鲁空天信息研究院 | Expandable winding rib, antenna and aerospace device |
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| US4568945A (en) * | 1984-06-15 | 1986-02-04 | Winegard Company | Satellite dish antenna apparatus |
| CN104022337A (en) * | 2014-06-17 | 2014-09-03 | 哈尔滨工业大学 | Modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms |
| CN104638381A (en) * | 2014-11-27 | 2015-05-20 | 中国科学院国家天文台 | Spatial five-equal partition reflecting face unit of FAST (five-hundred-meter aperture spherical radio telescope) |
| CN104682011A (en) * | 2015-03-08 | 2015-06-03 | 西安电子科技大学 | Ground reflector in cable network structure |
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2017
- 2017-06-16 CN CN201710459006.9A patent/CN107293861B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4568945A (en) * | 1984-06-15 | 1986-02-04 | Winegard Company | Satellite dish antenna apparatus |
| CN104022337A (en) * | 2014-06-17 | 2014-09-03 | 哈尔滨工业大学 | Modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms |
| CN104638381A (en) * | 2014-11-27 | 2015-05-20 | 中国科学院国家天文台 | Spatial five-equal partition reflecting face unit of FAST (five-hundred-meter aperture spherical radio telescope) |
| CN104682011A (en) * | 2015-03-08 | 2015-06-03 | 西安电子科技大学 | Ground reflector in cable network structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767421A (en) * | 2018-06-28 | 2018-11-06 | 哈尔滨工业大学（威海） | A kind of space deployable antenna supporting mechanism |
| CN116505224A (en) * | 2023-06-29 | 2023-07-28 | 齐鲁空天信息研究院 | Expandable winding rib, antenna and aerospace device |
| CN116505224B (en) * | 2023-06-29 | 2023-09-05 | 齐鲁空天信息研究院 | Antenna and aerospace device composed of expandable winding ribs |
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| Publication number | Publication date |
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| CN107293861B (en) | 2019-11-05 |
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