CN114628879B - Space foldable array device with two unfolding modes of plane and curved surface - Google Patents
Space foldable array device with two unfolding modes of plane and curved surface Download PDFInfo
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- CN114628879B CN114628879B CN202210269710.9A CN202210269710A CN114628879B CN 114628879 B CN114628879 B CN 114628879B CN 202210269710 A CN202210269710 A CN 202210269710A CN 114628879 B CN114628879 B CN 114628879B
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- 239000000758 substrate Substances 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/081—Inflatable antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/085—Flexible aerials; Whip aerials with a resilient base
-
- 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
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
- H01Q15/161—Collapsible reflectors
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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
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
- H01Q15/161—Collapsible reflectors
- H01Q15/163—Collapsible reflectors inflatable
-
- 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
- H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
- H01Q15/20—Collapsible reflectors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/20—Collapsible or foldable PV modules
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Toys (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The application provides a space foldable array device with two unfolding modes of a plane and a curved surface, which comprises a center base, a plurality of annular folding units which are mutually nested, a substrate for carrying the annular folding units and a flexible piece for providing support and driving; the annular folding and unfolding units are single-degree-of-freedom paper folding and unfolding mechanisms and comprise a plurality of identical quadrilateral folding and unfolding bodies, the plurality of closed quadrilateral folding and unfolding bodies are distributed in an annular array mode and are arranged in a staggered mode according to folding ridges and folding valleys, and the corresponding quadrilateral folding and unfolding bodies in the plurality of annular folding and unfolding units are arranged in a staggered mode according to the folding ridges and the folding valleys in the radial direction; the flexible piece is arranged at the lower side of the substrate and is simultaneously connected with corresponding quadrilateral folding and unfolding bodies in the plurality of annular folding and unfolding units, and an air passage along the radial direction is arranged in the flexible piece; the application can correspondingly use a plane configuration or a curved surface configuration according to different use requirements, and has the characteristics of multiple purposes, strong flexibility and the like.
Description
Technical Field
The application belongs to the technical field of space foldable and unfoldable mechanisms, and particularly relates to a space foldable and unfoldable array device with two unfolding modes of a plane and a curved surface.
Background
The space foldable array is provided with two types of plane type and curved surface type, a large plane is formed after the plane type foldable array is unfolded, the space foldable array can be used for a solar cell array or a plane antenna array, a three-dimensional film structure is formed after the curved surface type foldable array is unfolded, and space curved surfaces such as a paraboloid and a spherical surface can be formed and can be used as a reflecting surface of a feedback antenna.
The traditional curved surface foldable mechanism has the defects of complex structure, large folding volume and fixed folding ratio, and can not meet higher application requirements; meanwhile, the folding and unfolding mechanism in the prior art cannot realize two unfolding modes of a plane and a curved surface at the same time.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides a space foldable array device with two unfolding modes of a plane and a curved surface, which can correspondingly use a plane configuration or a curved surface configuration according to different use requirements and has the characteristics of multiple purposes, strong flexibility and the like.
In order to achieve the above object, the present application provides a space-foldable array device having two unfolded forms of a plane and a curved surface, including a central base, a plurality of annular folding units nested with each other, a base for carrying the plurality of annular folding units, and a flexible member for providing support and driving;
the annular folding and unfolding units are single-degree-of-freedom paper folding and unfolding mechanisms and comprise a plurality of identical quadrilateral folding and unfolding bodies, the plurality of closed quadrilateral folding and unfolding bodies are distributed in an annular array mode and are arranged in a staggered mode according to folding ridges and folding valleys, and the corresponding quadrilateral folding and unfolding bodies in the plurality of annular folding and unfolding units are arranged in a staggered mode according to the folding ridges and the folding valleys in the radial direction;
the substrate is a flexible film which can be folded and unfolded along with the annular folding and unfolding unit;
the flexible piece is arranged at the lower side of the substrate and is simultaneously connected with corresponding quadrilateral folding and unfolding bodies in the plurality of annular folding and unfolding units, and an air passage along the radial direction is arranged in the flexible piece;
through inflating in the air flue, the flexible piece is in radial direction inflation in order to push away a plurality of annular folding and unfolding units, and a plurality of annular folding and unfolding units are simultaneously unfolded around the central base until being in the plane unfolding form, and wherein when a plurality of annular folding and unfolding units are in the plane unfolding form, through continuing to inflate the air flue, the downside of the flexible piece is grown along the axial direction of the flexible piece so that the whole flexible piece is upwards bent, and a plurality of annular folding and unfolding units are upwards bent and are in the curved surface unfolding form.
As another specific embodiment of the present application, the central base is a regular prism, and the number of bottom side lengths of the central base is the same as the number of quadrilateral folding bodies in the annular folding unit.
As another embodiment of the present application, the plurality of annular folding units are configured using a Miura-ori paper folding structure.
As another embodiment of the present application, the number of the flexible members is two or more, and the two or more flexible members are arranged at intervals.
As another specific embodiment of the application, the central base is provided with an air inlet channel, and the air channel in the flexible piece is communicated with the air inlet channel.
As another specific embodiment of the application, the central base is provided with an annular groove, the air inlet channel is communicated with the air channel through an air pipe, and the air pipe penetrates through the annular groove and can slide in the annular groove.
As another embodiment of the application, the flexible member is bonded to the underside of the substrate.
As another embodiment of the present application, a gap for maintaining the annular folding and unfolding units from deforming when being bent is provided between the adjacent annular folding and unfolding units.
The application has the following beneficial effects:
the application can be further deformed into a curved surface configuration on the basis of annular plane expansion, has more flexible use modes according to different use scenes, realizes multiple expansion modes on the same array structure, can correspondingly use a planar configuration or a curved surface configuration according to different use requirements, and has the characteristics of multiple purposes, strong flexibility and the like.
The application can be folded into a smaller volume, saves the transportation space, can be unfolded into a large-area plane or curved surface according to different requirements during unfolding, and can be applied to a plane solar cell array, a curved antenna or a curved reflector of a satellite, and the like.
The present application will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of an embodiment 1 of the apparatus of the present application;
FIG. 2 is a crease profile of the substrate of example 1 of the device of the present application;
FIG. 3 is a schematic view of the structure of the center base of embodiment 1 of the apparatus of the present application;
FIG. 4 is a schematic view showing a folded state of embodiment 1 of the apparatus of the present application;
FIG. 5 is a schematic view of the deployment process of embodiment 1 of the device of the present application;
FIG. 6 is a schematic view of embodiment 1 of the device of the present application in a flat expanded state;
FIG. 7 is a schematic view of embodiment 1 of the device of the present application in a curved unfolded state;
FIG. 8 is a schematic illustration of the configuration of the apparatus of example 1 of the present application using a Miura-ori paper folding configuration;
FIG. 9 is a schematic illustration of a "one-point four-wire" deployment movement in accordance with example 1 of the apparatus of the present application;
fig. 10 is a schematic view of dihedral relationship in the developing process in embodiment 1 of the device of the present application.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and the scope of the application is therefore not limited to the specific embodiments disclosed below.
Example 1
The present application provides a space-foldable array device having two unfolded configurations of a plane and a curved surface, as shown in fig. 1 to 7, comprising a central base 100, a plurality of annular folding units 200 nested with each other, a base 300 for carrying the plurality of annular folding units 200, and a flexible member 400 for providing support and driving.
The annular folding and unfolding units 200 are single-degree-of-freedom paper folding mechanisms, and include a plurality of identical quadrilateral folding and unfolding bodies 201, for example sixteen, sixteen closed quadrilateral folding and unfolding bodies 201 are distributed in an annular array manner and are arranged in a staggered manner according to folding ridges and folding valleys, the number of the annular folding and unfolding units 200 is for example three, and the corresponding quadrilateral folding and unfolding bodies 201 in the three annular folding and unfolding units 200 are arranged in a staggered manner according to folding ridges and folding valleys in the radial direction.
Further, the center base 100 is specifically a regular prism, for example, a sixteen prism, and the number of bottom side lengths of the center base 100 is the same as the number of quadrilateral folding bodies 201 in the annular folding unit 200, for example, as shown in fig. 3.
Specifically, the substrate 300 is a flexible film that can be deformed along with the annular folding and unfolding unit 200;
the flexible member 400 is disposed at the lower side of the base 300 and simultaneously connected to the corresponding quadrangular folder 201 of the plurality of annular folder units 200, that is, the corresponding quadrangular folder 201 of the three annular folder units 200 in the radial direction shares one flexible member 400, and preferably, the flexible member 400 is adhered to the lower side of the base 300.
An air passage 401 in a radial direction is provided in the flexible member 400.
Wherein the three ring-shaped folding and unfolding units 200 in the folded state are folded in a zigzag shape.
By inflating the airway 401, the flexible member 400 expands in a radial direction to push the plurality of annular folding units 200 apart while the plurality of annular folding units 200 are simultaneously unfolded around the center base 100 until in a planar unfolded configuration, as shown in fig. 6, at which time inflation of the airway 401 is stopped to maintain the pressure inside the airway 401, at which point the airway 401 may act as a support mechanism for the annular folding units 200, thereby maintaining a planar configuration.
When the plurality of annular folding and unfolding units 200 are in the planar unfolding form, the air channel 401 is continuously inflated, and the inner side of the air channel 201 is adhered to the substrate 300 and cannot deform along the axial direction, so that the lower side of the flexible member 400 grows along the axial direction to enable the whole flexible member 400 to bend upwards, and the plurality of annular folding and unfolding units 200 are enabled to bend upwards and be in the curved unfolding form by utilizing the flexibility of the substrate 300, as shown in fig. 7.
Still further, the number of the flexible members 400 is two or more, for example sixteen, sixteen flexible members 400 are arranged at intervals, and sixteen flexible members 400 are spoke-shaped when being unfolded into a plane.
In this embodiment, the air inlet channel 101 is provided on the center base 100, the air channel 401 in the flexible member 400 is communicated with the air inlet channel 101, the center base 100 is provided with the annular groove 102, the air inlet channel 101 is communicated with the air channel 401 through an air pipe (not shown in the figure), the air pipe passes through the annular groove 102 and can slide in the annular groove, and correspondingly, equipment such as an air pump and the like is arranged in the air inlet channel 101 to provide an air source.
Wherein the flexible member 400 may be movably coupled to the central base 100 to provide support for the plurality of annular folding and unfolding units 200.
In this embodiment, a gap (not shown) for keeping the annular folding and unfolding units 200 from deforming during bending is provided between the adjacent annular folding and unfolding units 200, and the flexible member 400 is continuously inflated on the basis that the plurality of annular folding and unfolding units 200 have completed planar unfolding, and the flexible member 400 cannot deform axially due to adhesion with the substrate 300, but can grow axially on the outer side thereof, so that the flexible member 400 can deform in an upward bending manner; since the annular folding and unfolding units 200 are provided with gaps, and the substrate 300 is a flexible film, deformation generated in the bending deformation process can be accumulated in the substrate 300 in the gaps of the annular folding and unfolding units 200, so that the annular folding and unfolding units 200 can be ensured not to deform in the bending state.
A specific folding manner of the plurality of annular folding units in this embodiment is shown in fig. 8 to 10, and is specifically: the plurality of annular folding units are configured by adopting a Miura-ori paper folding structure, crease distribution of only partial annular areas is shown in fig. 8, and crease distribution design can be carried out on all the annular areas in this way.
The circumferential crease and the polygonal side length are overlapped, the radial crease and the radial direction form an alpha included angle relation, but the difference is that the alpha angle of each ring takes different values in order to meet the plane folding rule.
For judging whether the folding method is plane foldable, there are two rules:
(1)|N m -N v |＝2，N m and N V The number of the folded ridges and the folded valleys at the same node is respectively;
(2) The folding method for "one-dot four-wire" should satisfy the volts-see theorem that the sum of the diagonal angles is equal.
Analyzing one of the nodes O, wherein the folding lines of the node O are 3 ridges and 1 valley, and obviously, the rule (1) is satisfied.
For rule (2), it is necessary to make +.aod+.boc+.cod+.aob +.boc +.cod +.aob +.aod.
For the folded cell block OAFD let ++afd=α m Easy to prove:
∠AOD＝β m ＝α m +θ (2-1)
∠OAE＝∠OEA＝α m (2-2)
∠BOE＝β m (2-3)
then there is +.AOE=pi-2α m ，∠AOB-∠AOD＝π-2α m
Also because of the angle AOD + & lt COD + BOC + -aob=2pi
Then +.BOC=pi-alpha m-1 -2θ，∠BOC-∠COD＝π-2α m-1 -2θ
Obviously, when alpha m-1 ＝α m -at θ, rule (2) is satisfied.
Similarly have alpha m-2 ＝α m-1 θ, and so on, to determine α for each layer i 。
The following description will be made by taking the most basic "one-dot four-line" unfolding motion as an example, and the unfolding motion of the circular film paper folding structure based on Miura-oriThe dihedral relationship in the process can be generalized by the dihedral relationship of a single unit, and the unit shown in fig. 9 can be regarded as a link mechanism with a link length of 0, wherein the unfolding unit should meet the most basic plane folding rule, namely alpha 12 、α 23 、α 34 、α 14 Satisfy alpha 12 +α 34 ＝α 23 +α 14 Pi, and the dihedral angle of the rigid surface has a certain relation with the rotation angle of the link mechanism, phi 1 ＝π-θ 1 、φ 2 ＝π-θ 2 、φ 3 ＝π-θ 3 、φ 4 ＝π+θ 4 。
According to the above conditions:
the transition from the revolute joint 1 to the revolute joint 3 takes two paths 1-2-3 and 1-4-3, namely:
1 T 2 · 2 T 3 ＝ 1 T 4 · 4 T 3 (2-5)
the same principle is as follows:
1 T 2 · 2 T 3 · 3 T 4 ＝ 1 T 4 (2-6)
2 T 3 · 3 T 4 ＝ 2 T 1 · 1 T 4 (2-7)
2 T 1 · 1 T 4 · 4 T 3 ＝ 2 T 3 (2-8)
the simultaneous formula (2-4), the formula (2-5), the formula (2-6), the formula (2-7) and the formula (2-8) can be obtained by:
at theta 3 Assigning values to arguments, e.g. set α 12 ＝65°、α 23 =85°, calculate θ 1 、θ 2 And theta 4 The results are shown in FIG. 10.
As can be seen from fig. 10, θ during deployment 1 ＝θ 2 ，θ 2 ＝θ 4 And θ is as follows 3 And theta 2 Satisfying the formula (2-11). At the same time, when θ is known 3 The remaining three angles can be found, indicating a "one point four line" unit degree of freedom of 1.
The annular film paper folding structure based on Miura-ori is formed by splicing and combining a plurality of 'one-point four-line' units along the circumferential direction and the radial direction, and common dihedral angles are arranged between every two adjacent 'one-point four-line' units, namely, when the angle of one dihedral angle is known, the angles of all other dihedral angles can be calculated, so that the degree of freedom of the annular film paper folding structure based on Miura-ori is 1.
The above is not relevant and is applicable to the prior art.
While the application has been described in terms of preferred embodiments, it is not intended to limit the scope of the application. It is intended that all modifications within the scope of the application, i.e., all equivalents thereof, be embraced by the application as they come within their scope without departing from the application.
Claims (5)
1. The space foldable array device with two unfolding forms of a plane and a curved surface is characterized by comprising a center base, a plurality of annular folding units which are mutually nested, a base for carrying the annular folding units and a flexible piece for providing support and driving; the annular folding and unfolding units are configured by adopting a Miura-ori paper folding structure;
the annular folding and unfolding units are single-degree-of-freedom paper folding and unfolding mechanisms and comprise a plurality of same quadrilateral folding and unfolding bodies, the quadrilateral folding and unfolding bodies are distributed in an annular array mode and are arranged in a staggered mode according to folding ridges and folding valleys, and the quadrilateral folding and unfolding bodies corresponding to the annular folding and unfolding units are arranged in a staggered mode according to the folding ridges and the folding valleys in the radial direction;
the central base is a regular prism, and the number of the bottom side lengths of the central base is the same as the number of the quadrilateral folding bodies in the annular folding unit;
the substrate is a flexible film which can be folded and deformed along with the annular folding and unfolding unit;
the flexible piece is arranged on the lower side of the substrate and is simultaneously connected with the corresponding quadrilateral folding and unfolding bodies in the plurality of annular folding and unfolding units, and an air passage along the radial direction is arranged in the flexible piece; the flexible piece is movably matched and connected with the center base to provide support for the annular folding and unfolding units;
through aerify in to the air flue, the flexible piece is in radial direction inflation in order to push away a plurality of annular folding and unfolding unit, simultaneously a plurality of annular folding and unfolding unit is around the center base is synchronous to be unfolded until being in the plane and is unfolded the form, wherein, is equipped with between the adjacent annular folding and unfolding unit and is used for keeping annular folding and unfolding unit does not produce the clearance of deformation when crooked, a plurality of annular folding and unfolding unit is in the plane and is unfolded the form, through to the air flue continues to aerify, the downside side of flexible piece is along its axial growth makes the whole upwards crooked of flexible piece, makes a plurality of annular folding and unfolding unit upwards crooked and be in the curved surface and expand the form.
2. The spatially collapsible array device having two expanded configurations of planar and curved surfaces according to claim 1, wherein said number of flexible members is two or more, and two or more of said flexible members are spaced apart.
3. The spatially collapsible array device having two expanded configurations, a planar configuration and a curved configuration, as recited in claim 2, wherein said central base defines an air inlet channel, said air passage in said flexible member being in communication with said air inlet channel.
4. A space-collapsible array device having two expanded configurations, planar and curved, as claimed in claim 3, wherein said central base is provided with an annular slot, said inlet passage being in communication with said airway via an air tube, said air tube passing through and being slidable within said annular slot.
5. The spatially collapsible array device having two expanded configurations, a planar and a curved surface, as recited in claim 1, wherein said flexible member is bonded to an underside of said substrate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210269710.9A CN114628879B (en) | 2022-03-18 | 2022-03-18 | Space foldable array device with two unfolding modes of plane and curved surface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210269710.9A CN114628879B (en) | 2022-03-18 | 2022-03-18 | Space foldable array device with two unfolding modes of plane and curved surface |
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| CN114628879B true CN114628879B (en) | 2023-11-03 |
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| CN114759357B (en) * | 2022-04-24 | 2023-02-28 | 西安电子科技大学 | Expandable mesh antenna based on dome type tensioning integrity |
| CN115848655B (en) * | 2023-02-17 | 2023-05-09 | 中国人民解放军军事科学院国防科技创新研究院 | Multistable compliant control system |
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| CN101853986A (en) * | 2010-05-24 | 2010-10-06 | 哈尔滨工业大学 | Manufacturing methods of inflatable deployable antenna reflecting surface based on shape memory polymer and reflecting surface film and skin thereof |
| CN102110867A (en) * | 2011-01-16 | 2011-06-29 | 浙江大学 | Spherical land-based inflatable antenna |
| CN106785305A (en) * | 2016-11-23 | 2017-05-31 | 上海卫星工程研究所 | A kind of space cylindro-parabolic thin plate antenna based on inflatable structure |
| JP2020012381A (en) * | 2018-07-13 | 2020-01-23 | 日本電産株式会社 | Impeller |
| CN113638498A (en) * | 2021-05-31 | 2021-11-12 | 东南大学 | Double-layer foldable film structure based on generalized Miura folded paper |
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| CN101853986A (en) * | 2010-05-24 | 2010-10-06 | 哈尔滨工业大学 | Manufacturing methods of inflatable deployable antenna reflecting surface based on shape memory polymer and reflecting surface film and skin thereof |
| CN102110867A (en) * | 2011-01-16 | 2011-06-29 | 浙江大学 | Spherical land-based inflatable antenna |
| CN106785305A (en) * | 2016-11-23 | 2017-05-31 | 上海卫星工程研究所 | A kind of space cylindro-parabolic thin plate antenna based on inflatable structure |
| JP2020012381A (en) * | 2018-07-13 | 2020-01-23 | 日本電産株式会社 | Impeller |
| CN113638498A (en) * | 2021-05-31 | 2021-11-12 | 东南大学 | Double-layer foldable film structure based on generalized Miura folded paper |
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