CN104627389A - Controllably and orderly inflated self-supporting type solar sail structure - Google Patents
Controllably and orderly inflated self-supporting type solar sail structure Download PDFInfo
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- CN104627389A CN104627389A CN201510079527.2A CN201510079527A CN104627389A CN 104627389 A CN104627389 A CN 104627389A CN 201510079527 A CN201510079527 A CN 201510079527A CN 104627389 A CN104627389 A CN 104627389A
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Abstract
The invention relates to the field of spaceflight and discloses a controllably and orderly inflated self-supporting type solar sail structure. A sail surface approximately triangle-shaped and formed by three curves is adopted, the sail surface can be unfolded in orbit stably and orderly, and distribution gradient of internal plane stress forced on the sail surface after unfolding is reduced by 20%; a support ring with the inner diameter equal to a winding shaft is arranged at the position of rectangular vertice of the sail surface, and concentrated stress of the sail surface can be lowered; a circular opening enclosed by 4n (n is larger than or equal to 3, and n is an integer) sawteeth, and no relative movement between the vertice of the sail surface and the winding shaft can be guaranteed; four sets of inflated extension arms used for supporting the sail surface are unfolded, each set is formed by two extension arms, straightness of the inflated extension arms and rigidity of the inflated extension arms after being unfolded can be improved, the rigidity of the structure is two times of that of a structure with a single extension arm, and unfolding stability of the extension arms is improved.
Description
Technical field
The present invention relates to space industry, particularly relate to a kind of controlled orderly inflating expanded self-support type solar sail structure.
Background technology
After entering 21 century, deep-space detection field is subject to all the more the attention of the mankind.Solar sail spacecraft, as novel aircraft, does not need propulsion system just can realize the accelerated movement of aircraft, solar sail aircraft be by solar photon between momentum exchange and obtain flying power.And this propelling resource is inexhaustible, the vitality of propelling only depends on the life-span of solar sail film and actuator and the distance of light source.In deep-space detection field, there is very high researching value.In order to the propulsive force providing spacecraft enough, spacecraft needs enough large solar sail sail face.The features such as inflatable deploying solar sail structure is light with its quality, developed area is large, have good application prospect in deep-space detection field.Solar sail sail face cannot be launched by prior art in-orbit reliable and stablely, the problem of existence and stability difference.
Summary of the invention
For existing solar sail sail face hold-down arm structure exist the problems referred to above, thus provide a kind of be intended to lean on in-orbit stably by solar sail sail face launch controlled orderly inflating expanded self-support type solar sail structure.
A kind of controlled orderly inflating expanded self-support type solar sail structure, comprising:
Support, described support is wound around axle, a cube rod and an octagon base by four and forms, described cube rod is arranged at the center of described octagon base, and described winding axle is arranged on the edge of described octagon base, and distance between adjacent two described winding axles is equal;
Four groups of sail faces, each described sail face includes a summit and two end points, and described sail face is by two curvilinear equations:
and a curvilinear equation is:
the sail face that surrounds of three curves; Wherein, h represents the arch degree of depth of curve, and-l/l2≤h≤l/8 ,-l/2≤x≤l/2, l represents the distance between the end points of curve both sides, h
1represent the arch degree of depth of curve ,-l
1/ 12≤h
1≤ l
1/ 8 ,-l
1/ 2≤x
1≤ l
1/ 2, l
1represent the distance between the end points of curve both sides; Be wound around axle described in each described sail face correspondence one, adopt predetermined collapse mode to be drawn in described sail face on the described winding axle that described sail face is corresponding respectively, the summit in described sail face is fixed on described winding axle;
Four gas filling bottles, are all arranged at the inner side of described cube rod;
Four inflation valve for spreading arms, gas filling bottle described in each described inflation valve for spreading arm correspondence one, described gas filling bottle is with thinking that described inflation valve for spreading arm is inflated, the inlet end of described inflation valve for spreading arm connects the described gas filling bottle corresponding with described inflation valve for spreading arm, the adjacent end points in adjacent two described sail faces is all connected to the pipe link of the stretching, extension end of same described inflation valve for spreading arm, four inflation valve for spreading arms are arranged on four faces of cube rod, and the extending arm launched is in the middle of winding axle, the distance namely between each described inflation valve for spreading arm with adjacent two described winding axles is identical.
Preferably, the summit place in described sail face is provided with the internal diameter filler ring identical with being wound around axle external diameter, the circular open that sail face in described filler ring is divided into 4n (n >=3) zig-zag film to surround, the radius of described circular open is identical with the radius of described winding axle, and 4n described sawtooth film is fixed on described winding axle.
Preferably, described filler ring is positioned at sail vertex of surface place, is connected with winding axle.
Preferably, the stretch section of described inflation valve for spreading arm comprises two sub-extending arms and and compresses controller, two described sub-extending arms all adopt curling folding, and contact two faces of launching sub-extending arm described in latter two adopt hair side respectively and hook the sub-extending arm of the sub-extending arm of face extending arm.
Preferably, described compression controller is made up of two locating wheels and support, and wherein two locating wheels are pushed down on corresponding sub-extending arm respectively, and are connected to the termination of sub-extending arm by connecting rod.
Preferably, the stretch section of described inflation valve for spreading arm also comprises four semi-round honeycomb block, every two described honeycomb block are oppositely arranged with predeterminable range, and described sub-extending arm is wound around compression along two described honeycomb block, and the stretching, extension end of described inflation valve for spreading arm is arranged between two described honeycomb block.
Sub-extending arm is preferred, and described sail face also comprises:
Rib, is arranged at the extension in described sail face;
Rope, is arranged at the edge of described rib.
Preferably, the stretching, extension end of described inflation valve for spreading arm is connected by the adjacent end points of pipe link with adjacent two described sail faces.
Preferably, the two ends of described pipe link are provided with S. A., and the adjacent end points in adjacent two described sail faces is connected with described S. A. by elasticity connection cord respectively.
The beneficial effect of technique scheme:
In the technical program, adopt the subtriangular sail face be made up of three curves, the tension distribution that sail face can be made to be subject to upon deployment is even, and Absorbable organic halogens and pulsation-free launch in-orbit; The circular open that 4n the sawtooth that the summit place in sail face is arranged surrounds can ensure sail face summit and constructional feature, the straightness accuracy of inflation valve for spreading arm after launching can be improved and launch the rear support rigidity of structure, be 2 times of the single extending arm rigidity of structure, and improve the strength of stability launching arm.
Accompanying drawing explanation
Fig. 1 is the deployed configuration schematic diagram in sail face described in the present invention four groups;
Fig. 2 a is the schematic diagram of a kind of curve calculation in the described sail face of the present invention one;
Fig. 2 b is the schematic diagram of the another kind of curve calculation in the described sail face of the present invention one;
Fig. 3 is that sail face of the present invention is connected deployed configuration schematic diagram with winding axle;
Fig. 4 is that sail face of the present invention is wound in and the structural representation be wound around on axle;
Fig. 5 is the structural representation of inflation valve for spreading arm of the present invention;
Fig. 6 is the section drawing of the present invention's two sub-extending arms;
Fig. 7 is the connection diagram of the end points in adjacent two sail faces in sail face after the present invention launches;
Fig. 8 is the schematic diagram of support of the present invention;
Fig. 9 is the schematic diagram that inflation valve for spreading arm of the present invention draws compression in.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
As shown in Figures 1 to 9, a kind of controlled orderly inflating expanded self-support type solar sail structure, comprising:
Support 3, support 3 is made up of four winding axle 3-1, a cube rod 3-2 and octagon base 3-4, cube rod is arranged at the center of octagon base 3-4, is wound around axle 3-1 and is arranged on the edge of octagon base 3-4, and adjacent two distances be wound around between axle 3-1 are equal;
As shown in Figure 2, four groups of sail faces 1, each sail face 1 includes a summit and two end points, and sail face 1 is by two curvilinear equations:
and curve (summit is to a surface curve) equation is:
the sail face 1 that surrounds of three curves; Wherein, h represents the arch degree of depth of curve, and-l/12≤h≤l/8 ,-l/2≤x≤l/2, l represents the distance between the end points of curve both sides, namely point (0, h) be the intersection point at y-axis and edge, h
1represent the arch degree of depth of curve, i.e. point (0, h
1) be y
1the intersection point at axle and edge ,-l
1/ 12≤h
1≤ l
1/ 8 ,-l
1/ 2≤x
1≤ l
1/ 2, l
1represent the distance between the end points of curve both sides; Each sail face 1 corresponding one is wound around axle 3-1, adopts predetermined collapse mode to be drawn in sail face 1 on the winding axle 3-1 of sail face 1 correspondence respectively, and the summit in sail face 1 is fixed on and is wound around on axle 3-1;
Four gas filling bottles 4, are all arranged at the inner side of cube rod 3-2;
Four inflation valve for spreading arms 2, the corresponding gas filling bottle 4 of each inflation valve for spreading arm 2, gas filling bottle 4 is with thinking that inflation valve for spreading arm 2 is inflated, the inlet end of inflation valve for spreading arm 2 connects the gas filling bottle 4 corresponding with inflation valve for spreading arm 2, the adjacent end points in adjacent two sail faces 1 is all connected to the pipe link 2-1 of the stretching, extension end 2-3 of same inflation valve for spreading arm 2, four inflation valve for spreading arms 2 are arranged on four faces of cube rod 3-2, and the extending arm launched is in the middle of winding axle, namely each inflation valve for spreading arm 2 is identical with adjacent two distances be wound around between axle 3-1.
Further, gas filling bottle 4 can adopt nitrogen to inflate.
In the present embodiment, asynchronous in order to overcome the expansion caused because of the difference of inflation valve for spreading arm 2 collapsed compact degree, adopt a gas filling bottle 4 to be only an inflation valve for spreading arm 2 and inflate; Namely the number of gas filling bottle 4 is identical with the number of inflation valve for spreading arm 2; The structure employing edge, sail face 1 of solar sail is the subtriangular shape of curve, and the tension distribution that sail face 1 can be made to be subject to upon deployment is even, can be launched in solar sail sail face 1 in-orbit reliable and stablely.By gas filling bottle 4 insufflation gas, inflation valve for spreading arm 2 can be launched in order, drive the sail face 1 be wrapped on winding axle 3-1 to launch simultaneously.Solar sail structure have lightweight, draw in volume little, launch in order controlled, launch after long-pending large and after launching without the need to features such as pressurizes.
As shown in Figure 3 and Figure 4, in a preferred embodiment, the summit place in sail face 1 is provided with the internal diameter filler ring 1-3 identical with being wound around axle 3-1 external diameter, sail face portion in filler ring 1-3 is by the circular open 1-4 built as 4n (n >=3) zig-zag film surrounds, the radius of circular open 1-4 is identical with the radius being wound around axle 3-1,4n described sawtooth film is fixed on described winding axle 3-1, and the expansion that can prevent expansion process topsail face moving up and down on winding axle from causing is unstable.
Further, circular open 1-4 and filler ring 1-3 all adopts aluminium material to make, and sawtooth is 16 best results.
In the present embodiment, the circular open 1-4 that a plurality of sawtooth that the summit place in sail face 1 is arranged surround can ensure the summit in sail face 1 and be wound around between axle 3-1 without relative motion, reduces the concentrated stress of this position.
As shown in Figure 3 and Figure 4, in a preferred embodiment, filler ring 1-3 is positioned at summit place, sail face 1; be connected with winding axle 3-1; this feature is: when sail face 1 is wrapped on winding axle 3-1, play the effect holding sail face, can protect and launch not rub with base in the expansion process of topsail face.
In the present embodiment, the diameter of filler ring 1-3 is wound in the diameter be wound around on axle 3-1 completely slightly larger than sail face 1, namely under sail face 1 winding state, can play the effect of dragging and holding up sail face 1, reach the object of restriction sail face 1 initial displacement, to ensure that solar sail sail face 1 can be launched smoothly.
As shown in Figure 5, in a preferred embodiment, the stretch section of inflation valve for spreading arm 2 comprises two sub-extending arm 2-4 and and compresses controller 2-2, two sub-extending arm 2-4 all adopt curling folding, contact two faces of launching latter two sub-extending arm 2-4 adopt hair side and hook face respectively, this can ensure that launching latter two sub-extending arm 2-4 can be pasted together, and then the rigidity that can realize launching extending arm improves 2 times, two sub-extending arm 2-4 are extensile setting up and down, compress controller 2-2 in order to compress fixing by two sub-extending arm 2-4.
Further, the stretch section of inflation valve for spreading arm 2 also can comprise four sub-extending arm 2-4, to improve stability when sail face 1 is launched.Be air inlet pipe 2-8 between the inlet end of inflation valve for spreading arm 2 and sub-extending arm 2-4.
The stretch section of inflation valve for spreading arm 2 comprises the constructional feature of two sub-extending arm 2-4 in the present embodiment, straightness accuracy and the expansion rear support rigidity of structure of launching rear inflation valve for spreading arm 2 can be ensured, be 2 times of the single extending arm rigidity of structure, and improve the strength of stability launching arm.Mutually clinging between each sub-extending arm 2-4 can be realized by compressing controller 2-2.
In a preferred embodiment, described compression controller is made up of two locating wheels and support, and wherein two locating wheels are pushed down on corresponding sub-extending arm respectively, and are connected to the termination of sub-extending arm by connecting rod.What can ensure can to glue in extending arm expansion process is more firm, compared with single extending arm, adds the straightness accuracy of extending arm deployment paths
As shown in Figure 5, in a preferred embodiment, the stretch section of inflation valve for spreading arm 2 also comprises four semi-round honeycomb block 2-5, every two honeycomb block 2-5 are oppositely arranged with predeterminable range, sub-extending arm 2-4 is wound around compression along two honeycomb block 2-5, and the stretching, extension end 2-3 of inflation valve for spreading arm 2 is arranged between two honeycomb block 2-5.In order to fill the center of the stretch section after compression.
Further, honeycomb block 2-5 can adopt aluminium material to make.
Sub-extending arm 2-4 can be made to be folded into cylindrical shape at the present embodiment two semi-round honeycomb block 2-5, expansion process makes plane motion; Realize folded state vibration and produce vibration isolation effect; It is 100mm effect circle that two semi-round honeycomb block 2-5 form a diameter at the free end of sub-extending arm 2-4, together with continuing, can reduce extending arm and launch finally instantaneous impulsive force above it with a sticking belt on sub-extending arm 2-4.
As shown in Figure 6, in a preferred embodiment, the contact surface of two sub-extending arm 2-4 that can contact with each other all adopts friction material.
Further, sub-extending arm 2-4 inside can attached bistable carbon fiber shell structure 2-6.
Be connected by nylon adherent buckle (hook side 2-7 and hair side 2-9) between two sub-extending arm 2-4 in the present embodiment, for the inflation valve for spreading arm 2 of sub-extending arm 2-4, the side that two sub-extending arm 2-4 are adjacent, one adopts hook side 2-7, and another is hair side 2-9; In addition, in order to ensure better to bond together between sub-extending arm 2-4 structure, to improve the rectilinearity after inflation valve for spreading arm 2 expansion and rigidity.
As shown in Figure 1, in a preferred embodiment, sail face 1 also comprises:
Rib 1-2, is arranged at the extension in sail face 1;
Rope 1-1, is arranged at the edge of rib 1-2.
Further, the width of rib 1-2 is 15mm-20mm.
In the present embodiment, rib 1-2 can adopt the membraneous material that intensity is higher.
In the present embodiment, the membraneous material that each limit, sail face 1 using degree is higher is reinforced; Edge is installed with rope 1-1, and below the situation that can ensure two ends, sail face 1 tension, internal tension is even, to reduce plication region and the fold quantity in sail face 1, thus improves the precision of expansion in sail face 1.
As shown in Figure 7, in a preferred embodiment, the stretching, extension end 2-3 of inflation valve for spreading arm 2 is connected with the adjacent end points in adjacent two sail faces 1 by pipe link 2-1.
In the present embodiment, the end of two sub-extending arm 2-4 adopt elasticity connection cord 5 with pipe link 2-1 be connected, to ensure that upper and lower two the sub-extending arm 2-4 of extended position can synchronous extension.
In a preferred embodiment, the two ends of pipe link 2-1 are provided with S. A., and the adjacent end points in adjacent two sail faces 1 is connected with S. A. by elasticity connection cord 5 respectively.
In the present embodiment, the S. A. being arranged at pipe link 2-1 two ends can ensure that sail face 1 is driving the tension variations launched constant, namely realizes the stable expansion in sail face 1, also can reduce antagonistic force is launched in sail face 1 impact on extending arm.Ensure that sail face 1 is launched, and exists certain predetermincd tension between adjacent sail face 1 simultaneously.
In a preferred embodiment, predetermined collapse mode is that Z-type folds.
In the present embodiment, under rounding state, sail face 1 structure adopt Z-shaped folding after be wrapped in and be wound around on axle 3-1, inflation valve for spreading arm 2 adopts curling folding mode, can ensure solar sail structure launch stable and after launching, rigidity is constant when, realize maximum gatherings and compare.
As shown in Figure 8, the octagon base 3-4 of controlled orderly inflating expanded self-support type solar sail structure, can reduce materials, and then expendable weight; Cube rod 3-2 can be used for fixing inflation valve for spreading arm 2; The outside of cube rod 3-2 also can be provided with the guide rail 3-3 guiding inflation valve for spreading arm 2 to launch, to ensure the consistent of the initial deployment direction of inflation valve for spreading arm 2.
The outside of support 3 also can be provided with solar panel 3-5, and as shown in Figure 9, during rounding state, solar panel 3-5 can protect sail face 1 and the inflation valve for spreading arm 2 of folded inside; After expansion, solar panel 3-5 faces toward the sun with the side of solar cell, and the adjustment of the expansion and attitude that can be structure provides the required energy.
The detailed process that solar sail structure is launched is: first, open the solar panel 3-5 outside support 3, and utilize self-locking device self-locking, and solar panel 3-5 faces toward the sun with the side of solar cell, can realize the energy recharge of solar sail structure; Then, opened the valve of each gas filling bottle 4 by control system simultaneously, realize the expansion of extending arm, and then drive the expansion in sail face 1.
The foregoing is only preferred embodiment of the present invention; not thereby embodiments of the present invention and protection domain is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilizations specification sheets of the present invention and diagramatic content and apparent change obtain in protection scope of the present invention.
Claims (9)
1. a controlled orderly inflating expanded self-support type solar sail structure, is characterized in that, comprising:
Support, described support is wound around axle, a cube rod and an octagon base by four and forms, described cube rod is arranged at the center of described octagon base, and described winding axle is arranged on the edge of described octagon base, and is distributed in the middle part at four non-conterminous edges;
Four groups of sail faces, each described sail face includes a summit and two end points, and described sail face is by two curvilinear equations:
and a curvilinear equation is:
the sail face that surrounds of three curves; Wherein, h represents the arch degree of depth of curve, and-l/12≤h≤l/8 ,-l/2≤x≤l/2, l represents the distance between the end points of curve both sides, h
1represent the arch degree of depth of curve ,-l
1/ 12≤h
1≤ l
1/ 8 ,-l
1/ 2≤x
1≤ l
1/ 2, l
1represent the distance between the end points of curve both sides; Be wound around axle described in each described sail face correspondence one, adopt predetermined collapse mode to be drawn in described sail face on the described winding axle that described sail face is corresponding respectively, the summit in described sail face is fixed on described winding axle;
Four gas filling bottles, are all arranged at the inner side of described cube rod;
Four inflation valve for spreading arms, gas filling bottle described in each described inflation valve for spreading arm correspondence one, described gas filling bottle is with thinking that described inflation valve for spreading arm is inflated, the inlet end of described inflation valve for spreading arm connects the described gas filling bottle corresponding with described inflation valve for spreading arm, the adjacent end points in adjacent two described sail faces is all connected to the pipe link of the stretching, extension end of same described inflation valve for spreading arm, four inflation valve for spreading arms are arranged on four faces of cube rod, and the described inflation valve for spreading arm launched is in the middle of winding axle, namely the distance between each described inflation valve for spreading arm with adjacent two described winding axles is identical.
2. controlled orderly inflating expanded self-support type solar sail structure as claimed in claim 1, it is characterized in that, the summit place in described sail face is provided with the internal diameter filler ring identical with being wound around axle external diameter, the circular open that sail face in described filler ring is divided into 4n (n >=3) zig-zag film to surround, the radius of described circular open is identical with the radius of described winding axle, and 4n described sawtooth film is fixed on described winding axle.
3. controlled orderly inflating expanded self-support type solar sail structure as claimed in claim 2, it is characterized in that, described filler ring is positioned at sail vertex of surface place, is connected with winding axle.
4. controlled orderly inflating expanded self-support type solar sail structure as claimed in claim 1, it is characterized in that, the stretch section of described inflation valve for spreading arm comprises two sub-extending arms and and compresses controller, two described sub-extending arms all adopt curling folding, and contact two faces of launching sub-extending arm described in latter two adopt hair side and hook face respectively.
5. controlled orderly inflating expanded self-support type solar sail structure as claimed in claim 4, it is characterized in that, described compression controller is made up of two locating wheels and support, and wherein two locating wheels are pushed down on corresponding sub-extending arm respectively, and are connected to the termination of sub-extending arm by connecting rod.
6. controlled orderly inflating expanded self-support type solar sail structure as claimed in claim 4, it is characterized in that, the stretch section of described inflation valve for spreading arm also comprises four semi-round honeycomb block, every two described honeycomb block are oppositely arranged with predeterminable range, described sub-extending arm is wound around compression along two described honeycomb block, and the stretching, extension end of described inflation valve for spreading arm is arranged between two described honeycomb block.
7. controlled orderly inflating expanded self-support type solar sail structure as claimed in claim 1, it is characterized in that, described sail face also comprises:
Rib, is arranged at the extension in described sail face;
Rope, is arranged at the edge of described rib.
8. controlled orderly inflating expanded self-support type solar sail structure as claimed in claim 1, it is characterized in that, the stretching, extension end of described inflation valve for spreading arm is connected by the adjacent end points of pipe link with adjacent two described sail faces.
9. controlled orderly inflating expanded self-support type solar sail structure as claimed in claim 8, it is characterized in that, the two ends of described pipe link are provided with S. A., and the adjacent end points in adjacent two described sail faces is connected with described S. A. by elasticity connection cord respectively.
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| CN110371324B (en) * | 2019-07-22 | 2022-03-01 | 哈尔滨工业大学 | Solar sail driven to be unfolded intelligently by multi-stable curved beam |
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| CN112319863B (en) * | 2020-11-19 | 2022-12-02 | 重庆开拓卫星科技有限公司 | Non-intervention type on-orbit flexible solar cell array unfolding device |
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| CN113904092A (en) * | 2021-10-08 | 2022-01-07 | 中国空间技术研究院 | Self-compaction formula film antenna deployment mechanism |
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| CN115465474B (en) * | 2022-09-16 | 2023-12-26 | 中国科学院上海技术物理研究所 | Sunshade device suitable for space instrument |
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