CN106159456B - Management system and management method is unfolded in spatial networks reflector wire side sequence - Google Patents
Management system and management method is unfolded in spatial networks reflector wire side sequence Download PDFInfo
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- CN106159456B CN106159456B CN201610533242.6A CN201610533242A CN106159456B CN 106159456 B CN106159456 B CN 106159456B CN 201610533242 A CN201610533242 A CN 201610533242A CN 106159456 B CN106159456 B CN 106159456B
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- layer
- cord
- net
- rope net
- wire side
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Classifications
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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
- H01Q15/147—Reflecting surfaces; Equivalent structures provided with means for controlling or monitoring the shape of the reflecting surface
Abstract
The invention discloses a kind of spatial networks reflector wire side sequences, and management system is unfolded, including the metallic reflection net between the ring-like truss deployable structure provided a supporting role, the rope net reflector and main rope net and secondary rope net that are made of main rope net, secondary rope net and vertical tension rope；The structure that the main rope net, metallic reflection net and secondary rope net pass through formation multilayer after folding；It is penetrated between arbitrarily connected two layers by cord in the structure of the multilayer formed after being folded in the main rope net, metallic reflection net and secondary rope net.
Description
Technical field
This technology fields are space technology field, and this technology is mainly used for satellite, space station and other spacecrafts
The Sport Administration that rope net is orderly unfolded under the agravic environment of space of Large Deployable grating reflector.
Background technique
Spaceborne large-sized annular reflector forms (Fig. 1) by outer ring, main rope wire side, secondary rope net and vertical tension rope.It is spaceborne big
After outer ring unlock release, outer ring starts to spread out type annular reflector.It is now placed in the rope net in the middle part of annular and is in free state.
Since space does not have gravity, this rope net is possible to arbitrarily be unfolded and wave in the sky.For bigbore reflector, net
Radius be more times of peripheral ring truss depth or more, therefore the wire side arbitrarily waved is possible to be wrapped on hoop truss,
It can also happen that winding, these all cause reflector expansion failure between major network, secondary net and drawing rope.According to documents and materials, mesh
Only have the U.S. to develop this heavy caliber annular reflector and successful launch on former world[1], but this reflector in the U.S.
But without document announcement, the netted deployable antenna on Japanese ETS-VIII satellite once occurred wire side management method in orbit
The failure crossed the winding of rope net and cause reflecting surface that can not be unfolded[2].In-orbit control with satellite of loop aerial was studied by Tsinghua University
The in-orbit thermal deformation problem of loop aerial, Beijing University of Science & Engineering were studied by the posture power coupling problem of system, Xian Electronics Science and Technology University
University research crosses the expansion course motion problem analysis of loop aerial, and Zhejiang University developed the principle sample of 6 meters of bicyclic reflectors
Machine, but it is domestic at present also not about the open report of annular reflector wire side management system.
Annular reflector is due to only having a rigid truss in outer ring, without rigid element in ring, can not it is fixed in inside or
Constrain its motion profile.Since wire side and rope are all flexible materials, even if being folded in an orderly manner when collapsing, but when outer
The initial stage is unfolded in ring, under motor drive, when the diameter of ring is slowly unfolded from collapsed diameter, leads with what outer ring truss was connected
Under straw line effect, the faint frictional force of the interlayer of rope net is not enough to maintain original folding and expanding order, and multilayer rope net can be simultaneously
Expansion, this results in diameter of the length greater than the ring being unfolded that rope net has been unfolded.The net freely to drift at this time is possible to
It blows out the upper end or lower end of annular truss, is then wrapped with the truss on periphery.Simultaneously as entire rope net unfolding sequence is disturbed,
It is likely to wind between major network, secondary net and between net and rope, these are all the hidden danger for causing reflector expansion failure.
Moreover, the bore of reflector is bigger, the size of net is bigger, and initial stage and mid-term in annular truss expansion, what is wound is several
Rate is also bigger.
If a dispensing will be coated on individual points between the wire side of folding in advance by taking, allow rope net in circumferential annular truss
Expansion initial stage maintains original folding sequence, then, as magnifying for annular truss diameter will using the expansion power of expansion rope
The glue point of bonding disengages.Since glue has mobility, the shortcomings that being unable to control there are splicing area and rubber relay force is done so, having can
Can be because the glue put individually to be too many, bonding force is excessive to cause that the failure that reflector Zhan Bukai or wire side are torn occurs.And
Under the temperature environment of space, the adhesive property of glue also can be different from ground, thus generate and shift to an earlier date unsticking or the failure that takes off not open.
It can also be by the way of the silk thread in the diagonal direction of ring drawing different length, with the increase of ring diameter, silk thread
From small to large by length, it disconnects one by one.Before every silk thread does not disconnect, the wire side which passes through is all in accordance with former folding sequence
Arrangement, after a silk thread is broken, wire side is opened, until all silk threads are all broken, wire side is fully opened.This method
The disadvantage is that the bad selection of the intensity of silk thread.If selection intensity is big, when will increase mounted resistance, and being broken silk thread is taut
Clamp force discharges suddenly, and silk thread is easy to will cause sometimes because of impact force and wind with wire side, if selecting intensity small, in ground experiment
When test, the gravity of rope net itself will break silk thread.
From the above it can be seen that the key technology requirement of wire side management system is not cause additional mounted resistance,
And winding cannot be generated with rope net, it just can guarantee the requirement for reaching satellite retroreflector expansion reliability index in this way.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple spatial networks reflector wire side sequence expansion of structure
Management system and management method.
In order to solve the above technical problem, the present invention provides a kind of spatial networks reflector wire side sequences, and management system is unfolded
System, including the ring-like truss deployable structure provided a supporting role, the rope net being made of main rope net, secondary rope net and vertical tension rope
Metallic reflection net between reflector and main rope net and secondary rope net；The main rope net, metallic reflection net and secondary rope net pass through
The structure of multilayer is formed after folding；The structure of the multilayer formed after being folded in the main rope net, metallic reflection net and secondary rope net
On penetrated by cord between arbitrarily connected two layers.
As the improvement to spatial networks reflector wire side sequence of the present invention expansion management system: the main rope
It is folded between net, metallic reflection net and secondary rope net by circumferential peak valley line mode.
As the further improvement to spatial networks reflector wire side sequence of the present invention expansion management system: opposite
Flexible and smooth surface silk should be set in the material and mesh size of the wire side of main rope net, metallic reflection net and secondary rope net
Rope.
As the further improvement to spatial networks reflector wire side sequence of the present invention expansion management system: described
Circumferential peak valley line mode is carried out after main rope net, metallic reflection net and secondary rope net subregion to fold；Arbitrarily adopted between connected wire side
It is penetrated at least two cords.
As the further improvement to spatial networks reflector wire side sequence of the present invention expansion management system: described
Main rope net, metallic reflection net and secondary rope net are uniformly divided into six areas, and each area is respectively adopted circumferential peak valley line mode and rolls over
It is folded.
The method of spatial networks reflector wire side sequence expansion management: by main rope net, metallic reflection net and secondary rope net with
Circumferential peak valley line mode folds, and after folding, cord is arranged in two of arbitrary neighborhood between Multi-layer net surface.
Improvement as the method to spatial networks reflector wire side sequence of the present invention expansion management: the circumferential direction
Peak valley line mode folds as follows: main rope net, metallic reflection net and secondary rope net being divided into uniform six areas, each area is divided into
The center setting middle line of four layers, four layers longitudinally runs through four layers；The first layer of four layers and the second layer are just being rolled over, first layer
Along middle line reflexed, the second layer is just being rolled over along middle line；The second layer of four layers and third layer reflexed, third layer is anti-along middle line
Folding；By the third layer and the 4th layer of positive folding of four layers, the 4th layer is just being rolled over along middle line.
As the further improvements in methods to spatial networks reflector wire side sequence of the present invention expansion management:
It in the area Liang Ge of arbitrary neighborhood, is just rolled between first layer and first layer, reflexed between the second layer and the second layer, third layer and third
It is just rolled between layer, reflexed between the 4th layer and the 4th layer.
As the further improvements in methods to spatial networks reflector wire side sequence of the present invention expansion management: institute
State cord penetrate main rope net, metallic reflection net and secondary rope net mode it is as follows: in same zone: continuously being penetrated by cord I
First layer and the second layer, cord II continuously penetrate the second layer and third layer, cord III are continuously penetrated to third layer and the 4th layer；Silk
Rope VIII continuously penetrates two faces after first layer reflexed, cord Ⅸ continuously penetrates two faces after the just folding of the second layer 1, cord Ⅹ connects
Continue two faces after penetrating third layer reflexed, cord Ⅺ continuously penetrates two faces after the 4th layer of positive folding；The two of arbitrary neighborhood
In a area: the first layer in the two areas is successively penetrated by cord IV, the second layer that the two areas are successively penetrated by cord V,
The third layer in the two areas is successively penetrated by cord VI, the 4th floor in the two areas is successively penetrated by cord VII.
The present invention solves space annular reflector and existing rope net and outer ring truss winding potential faults is unfolded in space,
Improve the expansion reliability of reflector.It is compared with other methods, this method bring structure additional mass is minimum, increased exhibition
Resistance minimum is opened, the performance of reflector operation on orbit is nor affected on.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is the cable net structure schematic diagram of annular reflector；
Fig. 2 is Multi-layer net surface along the layer-by-layer expansion principle figure in staple fiber both ends；
Fig. 3 is that wire side sequence collapses one of folding principle figure (rounding state)；
Fig. 4 wire side sequence collapses two (half unfolded state states) of folding principle figure；
Fig. 5 wire side sequence collapses three (full unfolded state states) of folding principle figure；
Fig. 6 is Sub-region and hierarchical schematic diagram of the invention.
Specific embodiment
Embodiment 1, Fig. 2~Fig. 6 give a kind of spatial networks reflector wire side sequence expansion management system and manager
Method；The method that this technology passes through Multi-layer net surface using short cord 4, allows rope and wire side under weightlessness of space state can be according to thing
The circumferential peak valley line sequence first folded shows sequence expansion.
Spatial networks reflector wire side sequence expansion management system of the invention includes the ring-like truss provided a supporting role
Between deployable structure, the rope net reflector and main rope net and secondary rope net that are made of main rope net, secondary rope net and vertical tension rope
Metallic reflection net 5；Main rope net, metallic reflection net 5 and secondary rope net form multilayer after folding by circumferential peak valley line mode
Structure；By taking the set-up mode of 6th areas, four floor as an example, which folds as follows:
By main rope net, metallic reflection net 5 and secondary rope net by taking metallic reflection net 5 as an example, it is uniformly divided into six areas (such as
Shown in Fig. 6, equilateral hexagon is formed, that is, is divided into area I 10, area II 20, area III 30, area IV 40, area V 50, VI 60 6, area
Area)；The point centered on the center of circle again, sequentially forms four layers outward after uniform radiation: the 4th layer, third layer, the second layer and the
One layer (as shown in fig. 6, the 4th layer 104, third layer 103, the second layer 102 and first layer 101)；According to folding between layers
Order sets gradually the folding that is positive (sun folding) line between the 4th layer 104, third layer 103, the second layer 102 and first layer 101 respectively
6, reflexed (yin is rolled over) line 7 and positive folding (sun folding) line 6 (in Fig. 6, are expressed as fold line with dotted line, state the folding that is positive with solid line
Line)；The point centered on the center of circle again, in 70 longitudinal direction of each area setting middle line through four floor (due to equilateral hexagon, so each
Area can be seen as being equilateral triangle, longitudinal through four with the round middle line 70 that equilateral triangle can directly be arranged for vertex
A layer)；Along the middle line 70, it is set as that reflexed (yin folding) line 7, the setting folding that is positive is (positive on the second layer 102 on first layer 101
Folding) line 6, it is set as that reflexed (yin folding) line 7, setting is positive folding (sun is rolled over) line 6 on the 4th layer 104 in third layer 103.In area I
10, area II 20, area III 30, area IV 40, area V 50, in area VI 60, the 4th floor 104 between area I 10 and area II 20, third layer
103, between the second layer 102 and first layer 101, centered on the center of circle, radiation is set as reflexed (yin folding) line 7, positive folding (sun respectively
Folding) line 6, reflexed (yin folding) line 7, positive folding (sun folding) line 6；It is corresponding, between area II 20 and area III 30, area IV 40 and area V 50
Between, between area IV 40 and area V 50, between area V 50 and area VI 60, between area VI 60 and area I 10 pass through method as above
Corresponding reflexed (yin folding) line 7, positive folding (sun folding) line 6, reflexed (yin folding) line 7, positive folding (sun folding) line 6 are set.
The metallic reflection net 5 set is folded along reflexed (yin is rolled over) line 7 or positive folding (sun is rolled over) line 6, is folded
Afterwards, it in identical area, is attached by several cords, i.e., first layer 101 and the second layer is continuously penetrated by cord I
102, cord II continuously penetrates the second layer 102 and third layer 103, cord III is continuously penetrated to third layer 103 and the 4th layer 104；
First layer 101, which is continuously penetrated, by cord VIII continuously penetrates along reflexed (yin folding) 7 folded two faces of line, by cord Ⅸ the
Third layer 103 is continuously penetrated for two layer 102 along positive folding (sun folding) 6 folded two faces of line, by cord Ⅹ along reflexed (yin folding)
7 folded two faces of line continuously penetrate the 4th layer 104 by cord Ⅺ along positive folding (sun folding) 6 folded two faces of line；?
In the area Liang Ge of arbitrary neighborhood, the first layer 101 in the two areas is successively penetrated by cord IV, this is successively penetrated by cord V
The second layer 102 in the area Liang Ge, the third layer 103 that the two areas are successively penetrated by cord VI successively penetrate this by cord VII
4th floor 104 in the area Liang Ge.
The material and mesh size of the wire side of main rope net, metallic reflection net 5 and secondary rope net are corresponded to, in the present invention
Cord selects flexible and smooth surface type, and penetrates the cord of selection at least two or more every time.
The principle of the present invention is by the way that there are frictional force between cord and mesh, in space null-gravity state, if without outer
Power, order state when wire side (main rope net, metallic reflection net 5 or secondary rope net) folds holding.When outer ring truss tensioning net
When edge, from outside to inside, after first layer falls off, with the increase of ring diameter, first layer continues to be unfolded wire side, only tightens to evening up
Afterwards, it can just overcome frictional force that the second layer is pulled (stress as shown in Figure 2,5 under tension F of metallic reflection netn, it gradually spreads out,
And its wire side, due to the effect of short cord 4, two adjacent faces receive two contrary frictional force F respectivelyiAnd fi).This
Sample has just been accomplished successively to fall off, and the length for netting opening can increase with the increase of outer annular diameter is synchronous, is not in multilayer while taking off
The phenomenon that falling, thus will not be when ring be fully deployed not yet, on the truss that rope wire side is wrapped in outer ring because being excessively unfolded.
And in the solution of the present invention, the cord of use to the increased quality very little of entire reflector (about at 100 grams), because
This will not influence the structure and mechanical characteristic of reflector, nor affect on vibratory response when reflector.Cord (or use phase
Fiber with physical property substitutes) it is set as 2 to 3 centimetres in itself, and need to be interspersed between multilayer, due to the resistance of wire side
Gear, therefore the probability that cord itself is wound is zero.When reflector expansion, since cord is opened up with caused by wire side frictional force
Resistance is opened less than 100 grams, this power is a very small power, hardly relative to tens kilograms of deploying forces of reflector
Influence expansion.It when reflector is fully deployed, cord or falls off or hangs on wire side, since the material of cord is medium
Material, and line footpath very little, therefore the reflecting properties of reflector electric wave are not influenced, there will not be passive intermodulation (PIM)
Problem.
Wire side and cord system are collapsed according to the orderly folding scheme of the circumferential peak valley line being pre-designed in advance, are then being designed
Cord is penetrated Multilayer Network by good each position.Wherein the diameter of cord is mainly determined according to the diameter of wire side braided mesh
It is fixed, the generally less than aperture of wire side.Since the superimposed mesh of Multi-layer net surface blocks, the diameter of cord is larger than multilayer
Average pore size after wire side overlapping, there are frictional force between wire side and cord when just can guarantee expansion in this way.It is required that the table of cord
Face is smooth, between the two without hook when guaranteeing cord and wire side relative motion, and requires the pliability (elasticity of flexure of cord
Modulus) to match with the pliability of wire side, when can guarantee to emit in this way when wire side has a small amount of changing of the relative positions between layers, silk
Rope can not generate resistance to the movement of silk screen with the wire side changing of the relative positions.The material of cord and surface smooth state are bases in a word
Different wire side materials, surface smooth state and wire side pliability are selected after friction testing according to the smallest principle of frictional force
It takes.
The distributing position of short cord 4 is to collapse the geometry fan subregion folded according to rope wire side to determine, is fanned at 1 square metre
Within the scope of shape, every 8-10 layers is worn one group short cord 4, and every group short cord 4 is made of 10-20 3-5 centimetres of spacing of short cord 4,
Particular number and spacing will be determined according to the rope net quality that specific sector is included.The big quantity of local rope net quality is with regard to more one
A bit, spacing is with regard to smaller；Local rope net quality is small, and quantity is just few, and spacing is with regard to larger.The wire side that every cord passes through
The number of plies, position distribution and cord length are the changing rules increased according to wire side geometric surface with outer annular diameter, successively fall off most
It is determined after the regulation analysis of good time series and minimum additional mounted resistance.
The present invention solves space annular reflector and existing rope net and outer ring truss winding potential faults is unfolded in space,
Improve the expansion reliability of reflector.It is compared with other methods, this method bring structure additional mass is minimum, increased exhibition
Resistance minimum is opened, the performance of reflector operation on orbit is nor affected on.And according to the size of space annular reflector, respective counts are set
The area of amount and floor (and set-up mode of non-required 6th areas, four floor, volume is bigger, and quantity is more), and according to circumferential peak valley line mode
Cord is set after folding.
Finally, it should also be noted that it is listed above be only a specific embodiment of the invention.Obviously, of the invention
Above embodiments are not limited to, acceptable there are many deformations.Those skilled in the art can be straight from present disclosure
All deformations for connecing export or associating, are considered as protection scope of the present invention.
Claims (4)
1. management system is unfolded in spatial networks reflector wire side sequence, including the deployable knot of ring-like truss provided a supporting role
Structure, the metal between rope net reflector and main rope net and secondary rope net be made of main rope net, secondary rope net and vertical tension rope are anti-
Penetrate net；It is characterized in that:
Main rope net, metallic reflection net and secondary rope net are divided into uniform six areas, circumferential peak valley line is respectively adopted in each area
Mode folds, to form the structure of multilayer；The circumferential direction peak valley line mode folds as follows: each area is divided into four floor, and four
A layer of center setting middle line longitudinally runs through four layers；
The first layer of four layers and the second layer are just being rolled over, first layer is just being rolled over along middle line reflexed, the second layer along middle line；
By the second layer and third layer reflexed of four layers, third layer is along middle line reflexed；
By the third layer and the 4th layer of positive folding of four layers, the 4th layer is just being rolled over along middle line；
Arbitrarily penetrated between connected wire side using at least two cords.
2. management system is unfolded in spatial networks reflector wire side sequence according to claim 1, it is characterized in that: corresponding to
Flexible and smooth surface cord is arranged in the material and mesh size of the wire side of main rope net, metallic reflection net and secondary rope net.
3. management system is unfolded in spatial networks reflector wire side sequence according to claim 2, it is characterized in that: in any phase
It in the area Lin Liangge, is just rolled between first layer and first layer, reflexed between the second layer and the second layer, between third layer and third layer
Positive folding, reflexed between the 4th layer and the 4th layer.
4. management system is unfolded in spatial networks reflector wire side sequence according to claim 3, it is characterized in that: the cord
The mode for penetrating main rope net, metallic reflection net and secondary rope net is as follows:
In same zone:
First layer is continuously penetrated by cord I and the second layer, cord II continuously penetrate the second layer and third layer, cord III is continuous
Penetrate third layer and the 4th layer；Cord VIII continuously penetrates two faces after first layer reflexed, cord Ⅸ is continuously penetrating the second layer 1 just
After two faces after folding, cord Ⅹ continuously penetrate two faces after third layer reflexed, cord Ⅺ continuously penetrates the 4th layer of positive folding
Two faces；
In the area Liang Ge of arbitrary neighborhood:
The first layer in the two areas is successively penetrated by cord IV, the second layer that the two areas are successively penetrated by cord V, logical
Cross the 4th floor that cord VI successively penetrates the third layer in the two areas, successively penetrates the two areas by cord VII.
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| EP4160814A1 (en) * | 2021-09-30 | 2023-04-05 | Eagle Technology, LLC | Deployable antenna reflector |
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| CN108666733B (en) * | 2018-05-15 | 2020-06-09 | 西安空间无线电技术研究所 | Net surface management mechanism and management method for mesh antenna |
| CN112436292B (en) * | 2020-11-23 | 2021-07-27 | 西安电子科技大学 | Reflecting surface antenna based on three-telescopic-rod driving and quasi-geodesic grid structure |
| CN113161710B (en) * | 2021-03-26 | 2022-08-12 | 上海卫星工程研究所 | Spatial expandable mesh antenna with profile precision capable of being adjusted in orbit |
| US11949161B2 (en) | 2021-08-27 | 2024-04-02 | Eagle Technology, Llc | Systems and methods for making articles comprising a carbon nanotube material |
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