CN110120575B - Expandable parabolic cylinder antenna based on hinged rib structure - Google Patents
Expandable parabolic cylinder antenna based on hinged rib structure Download PDFInfo
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- CN110120575B CN110120575B CN201910391180.3A CN201910391180A CN110120575B CN 110120575 B CN110120575 B CN 110120575B CN 201910391180 A CN201910391180 A CN 201910391180A CN 110120575 B CN110120575 B CN 110120575B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/46—Gearings comprising primarily only links or levers, with or without slides with movements in three dimensions
- F16H21/54—Gearings comprising primarily only links or levers, with or without slides with movements in three dimensions for conveying or interconverting oscillating or reciprocating motions
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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
- 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
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
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- General Engineering & Computer Science (AREA)
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- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention belongs to the technical field of satellite antennas, in particular to an expandable parabolic cylinder antenna based on a hinged rib structure, which is characterized in that: the parabolic cylinder antenna comprises a transverse unfolding mechanism, a longitudinal connecting mechanism, a net surface supporting cable and a metal wire net, wherein the longitudinal connecting mechanism is used for connecting the transverse unfolding mechanism and forms a framework of the parabolic cylinder antenna together with the transverse unfolding mechanism; the net surface supporting cables are arranged on the transverse unfolding mechanism and the longitudinal connecting mechanism in a staggered mode and form a required parabolic cylinder shape with the metal wire net; the metal wire mesh is fixed on the mesh surface supporting cable, the mesh surface supporting cable supports the metal wire mesh to enable the transverse unfolding mechanism to form a parabolic shape, the synchronous sliding block slides downwards to drive the hinge rib unfolding unit and the hinge rib connecting unit to synchronously unfold downwards, and therefore the parabolic cylindrical antenna is driven to unfold; on the contrary, the synchronous sliding block slides upwards to drive the hinge rib unfolding unit and the hinge rib connecting unit to synchronously unfold upwards, so that the parabolic cylinder antenna is driven to fold. It can be applied to aerial target search and resource detection.
Description
Technical Field
The invention belongs to the technical field of satellite antennas, and particularly relates to an expandable parabolic cylinder antenna based on a hinged rib structure, which can be applied to aerial target search and resource detection.
Background
With the rapid development of communication technology, space science and earth observation technology, the application requirement of the large-aperture antenna becomes more and more urgent. The parabolic cylinder antenna has the characteristics of high gain, strong directivity, convenience for automatic scanning of light beams and the like, and is widely applied to various space missions such as electronic reconnaissance, remote communication, deep space exploration, measurement of rainfall on the earth, observation of earth resources, orbit relay communication and the like. Because the antenna must have the capability of folding and unfolding due to the space limitation of the fairing of the carrier, the large-caliber expandable antenna becomes the best choice for the space antenna.
The traditional parabolic cylinder reflector antenna is composed of a metal or metalized paraboloid reflecting surface and is supported by a supporting member, the overall size and the mass of the structure are large, and large-scale and light-weight cannot be realized. Most of the parabolic reflector antennas adopting the expansion form are of an inflation expansion form or a framework mesh form. The inflatable antenna is expanded into the parabolic cylinder antenna through inflation, although the storage volume and the quality are reduced, the accuracy is often not as high as that of the mesh antenna, and the stability also has a certain problem. Although the framework mesh-type antenna has higher precision, the surface density of the antenna is higher and the accommodation ratio is smaller due to more modules.
Disclosure of Invention
The invention aims to provide an expandable parabolic cylinder antenna based on a hinged rib structure, which has good manufacturability, can realize large-scale and light weight, and has higher shape and surface precision and smaller furled volume and surface density.
The technical scheme of the invention is as follows: an expandable parabolic cylinder antenna based on a hinged rib structure, characterized in that: the parabolic cylinder antenna comprises a transverse unfolding mechanism, a longitudinal connecting mechanism, a net surface supporting cable and a metal wire net, wherein the longitudinal connecting mechanism is used for connecting the transverse unfolding mechanism and forms a framework of the parabolic cylinder antenna together with the transverse unfolding mechanism; the net surface supporting cables are arranged on the transverse unfolding mechanism and the longitudinal connecting mechanism in a staggered mode and form a required parabolic cylinder shape with the metal wire net; the metal wire mesh is fixed on the mesh surface supporting cable, the mesh surface supporting cable supports the metal wire mesh to enable the transverse unfolding mechanism to form a parabolic shape, the synchronous sliding block slides downwards to drive the hinge rib unfolding unit and the hinge rib connecting unit to synchronously unfold downwards, and therefore the parabolic cylindrical antenna is driven to unfold; on the contrary, the synchronous sliding block slides upwards to drive the hinge rib unfolding unit and the hinge rib connecting unit to synchronously unfold upwards, so that the parabolic cylinder antenna is driven to fold.
The transverse unfolding mechanism comprises 5 groups of hinged rib unfolding units, and the hinged rib unfolding units are of a symmetrical structure taking the central rod as an axis.
The hinge rib unfolding unit includes: the synchronous sliding block is sleeved in the middle of the central rod, and the five-direction joint is connected to the bottom of the central rod; the structure of the five-way joint comprises a front joint, a rear joint, a left joint, a right joint and a middle joint, wherein the left joint and the right joint are respectively connected with a third different-layer non-rod-end joint; the middle of the left and right 2 second motion connecting rods is separated by a second different-layer non-rod-end connector, the left and right second different-layer non-rod-end connectors are respectively connected with left and right first motion connecting rods, the left and right first motion connecting rods are parallel to the left and right 2 first supporting rods, and the left and right 2 first supporting rods are respectively connected with a second supporting rod through the same-layer non-rod-end connectors by adopting pin shafts; the left and right first supporting rods are respectively connected with the other end of the first motion connecting rod through a same-layer non-rod end connector by a pin shaft, and the other end of the first motion connecting rod is connected with one top of the second supporting rod through a first different-layer non-rod end connector.
Longitudinal coupling mechanism have 4 groups, every longitudinal coupling mechanism of group is connected by two articulated rib linkage units and is formed, two articulated rib linkage units be symmetrical structure, include: the first longitudinal same-layer rod end hinge joint and the second longitudinal same-layer rod end hinge joint are formed by connecting a left longitudinal first motion connecting rod, a right longitudinal second motion connecting rod, a left longitudinal third motion connecting rod, a right longitudinal third motion connecting rod, a left support rod, a right support rod and 4 hinge joints; the longitudinal first same-layer rod end hinge joint is connected with the middle part of the left and right longitudinal third motion connecting rod; the longitudinal second same-layer rod end hinge joint is connected with the end parts of the left and right longitudinal third motion connecting rods, so that the left and right longitudinal third motion connecting rods form a triangle; the other end of the left and right longitudinal third motion connecting rod is connected with the left and right longitudinal second motion connecting rod through the different-layer non-rod-end connector respectively; the other end of the second moving connecting rod is connected with the middle part of the left and right longitudinal first moving connecting rods through the same-layer non-rod-end joint, the longitudinal first same-layer rod-end joint is simultaneously connected with the left and right supporting rods, the left and right supporting rods are connected with the end parts of the left and right longitudinal first moving connecting rods through different-layer non-rod-end joints, and the left and right supporting rods and the left and right longitudinal second moving connecting rods form a parallel structure.
The left connecting joint and the right connecting joint of the synchronous sliding block are connected with the hinged rib unfolding unit in the transverse unfolding mechanism through different-layer rod end joints by pin shafts; the front side connecting joint and the right side connecting joint of the synchronous sliding block are connected with the hinge rib connecting unit in the longitudinal connecting mechanism through different-layer rod end joints by pin shafts; the synchronous sliding block linearly slides along the central rod, and the antenna is unfolded under the action of the driving source.
The five-way joint adopts an integrated structure, and the upper side joint of the five-way joint is connected with the central rod by adopting a shaft hole; the left side node and the right side node of the five-way joint are connected with a hinged rib unfolding unit in the transverse unfolding mechanism through rod end joints on the same layer by using pin shafts; the front side node and the rear side node of the five-way joint are connected with the hinged rib unfolding units in the longitudinal connecting mechanism through rod end joints on the same layer by adopting pin shafts.
The net surface supporting cable: the net surface supporting cables are used for forming a supporting wire mesh in a parabolic cylinder shape; short rods are arranged at two ends of each hinged rib unfolding unit, small holes are formed in the short rods so that the flexible cables can penetrate through the short rods, and the short rods are fixedly connected with the transverse cables and the longitudinal cables; each longitudinal cable is connected between corresponding flexible cable connection points on the adjacent hinge rib unfolding units; each vertical adjusting cable is connected between the hinge rib unfolding unit and the transverse cable and used for ensuring the basic shape of the paraboloid.
The net-shaped parabolic cylinder antenna adopts a structural form of simultaneously unfolding along two directions, and a hinged rib structure and a synchronous sliding block are utilized to realize that the antenna has a larger unfolding caliber.
The invention has the beneficial effects that: compared with the prior art, the invention has the following advantages:
1. the invention adopts the hinged rib units, can realize folding and unfolding in two directions, and has smaller storage volume and mass compared with a metallic or metalized parabolic reflector and a framework type mesh antenna.
2. The invention has the function of adjusting the cables, and the net surface can be kept at an ideal position by adjusting the flexible cables. At the same time, a paraboloid with higher precision can be formed and maintained by the short rods on the hinged rib units, and the paraboloid has higher precision compared with the paraboloid formed by inflating.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the overall deployment of the present invention;
FIG. 2 is a schematic structural view of a lateral deployment mechanism in the present invention;
FIG. 3 is a schematic view showing the construction of a hinged rib unfolding unit according to the present invention;
FIG. 4 is a schematic structural view of a lateral deployment mechanism in the present invention;
FIG. 5 is a schematic diagram of the connection relationship of the synchronous slide blocks in the present invention;
FIG. 6 is a schematic view of the connection relationship of the five-way joint of the present invention;
FIG. 7 is a schematic diagram of the structure of various types of linkers in the present invention;
FIG. 8 is a schematic view of the construction of the mesh-faced support cables of the present invention;
fig. 9 is a schematic view of a folded structure of the parabolic cylinder antenna according to the present invention.
In the figure, 1, a transverse deployment mechanism; 2. a longitudinal connecting mechanism; 3. a mesh surface supporting cable; 4. a wire mesh.
Detailed Description
Referring to fig. 1, the deployable parabolic cylinder antenna based on the hinged rib structure comprises a transverse deployment mechanism 1, a longitudinal connection mechanism 2, a net surface supporting cable 3 and a metal wire net 4, wherein the longitudinal connection mechanism 2 is used for connecting the transverse deployment mechanism 1 and forms a framework of the parabolic cylinder antenna together with the transverse deployment mechanism 1; the net surface supporting cables 3 are arranged on the transverse unfolding mechanism 1 and the longitudinal connecting mechanism 2 in a staggered mode and form a required parabolic cylinder shape with the metal wire net 4; the wire mesh 4 is fixed to the mesh-surface supporting wire 3, and the mesh-surface supporting wire 3 supports the wire mesh 4 to form the lateral deployment mechanism 1 into a parabolic shape.
Referring to fig. 2, 3 and 8, the lateral deployment mechanism 1 includes 5 sets of hinged rib deployment units 11 (see fig. 8), and the hinged rib deployment units 11 are of a symmetrical structure with a central rod 12 as an axis.
Referring to fig. 2 and 3, each hinge rib deployment unit 11 includes: the device comprises a central rod 12, a synchronous sliding block 13, a five-way joint 14, a left first supporting rod 111, a right first supporting rod 111, a left second supporting rod 112, a right second supporting rod 112, a left first moving connecting rod 113, a right first moving connecting rod 113 and a left second moving connecting rod 114, wherein the synchronous sliding block 13 is sleeved in the middle of the central rod 12, and the five-way joint 14 is connected to the bottom of the central rod 12; the structure of the five-way joint 14 is shown in fig. 6, and comprises a front joint, a rear joint, a left joint, a right joint and a middle joint, wherein the left joint and the right joint are respectively connected with a third-different-layer non-rod-end joint 1154, the left and right third-different-layer non-rod-end joints 1154 are respectively connected with a left and right first supporting rod 111 and a left and right second motion connecting rod 114, and the other ends of the left and right second motion connecting rods 114 are respectively connected with two ends of the synchronous sliding block 13; the middle of the left and right 2 second motion connecting rods 114 is separated by a second different-layer non-rod-end joint 1153, the left and right second different-layer non-rod-end joints 1153 are respectively connected with the left and right first motion connecting rods 113, the left and right first motion connecting rods 113 are parallel to the left and right 2 first supporting rods 111, and the left and right 2 first supporting rods 111 are respectively connected with the second supporting rods 112 through the same-layer non-rod-end joints 1151 by using pin shafts; the left and right 2 first support rods 111 are respectively connected with the other end of the first motion connecting rod 113 through the same-layer non-rod-end joint 1151 by a pin shaft and connected with the top of the second support rod 112 through the first different-layer non-rod-end joint 1152.
Referring to fig. 4, there are 4 groups of longitudinal connecting mechanisms 2, each group of longitudinal connecting mechanisms 2 is formed by connecting two hinge rib connecting units 21, and the two hinge rib connecting units 21 have a symmetrical structure, including: a longitudinal first same-layer rod end hinge 221 and a longitudinal second same-layer rod end hinge 222, a left-right longitudinal first motion connecting rod 212, a left-right longitudinal second motion connecting rod 213, a left-right longitudinal third motion connecting rod, a left-right supporting rod 211 and 4 hinge joints; the longitudinal first same-layer rod end hinge joint 221 is connected with the middle part of the left and right longitudinal third motion connecting rod; the longitudinal second same-layer rod end hinge joint 222 is connected with the end part of the left and right longitudinal third motion connecting rod, so that the left and right longitudinal third motion connecting rod forms a triangle; the other end of the left and right longitudinal third motion connecting rod is connected with a left and right longitudinal second motion connecting rod 213 through a different-layer non-rod end connector; the other end of the second motion link 213 passes through the middle part of the left and right longitudinal first motion links 212 of the non-rod-end joint of the same layer, the longitudinal first rod-end joint 221 of the same layer is simultaneously connected with the left and right support rods 211, the left and right support rods 211 are connected with the end parts of the left and right longitudinal first motion links 212 of the non-rod-end joint of the different layer, and the left and right support rods 211 and the left and right longitudinal second motion links 213 form a parallel structure.
The hinge rib unfolding unit 21 is a synchronous four-bar mechanism, which ensures synchronous movement of the whole mechanism.
Referring to fig. 5, each of the synchronous sliders 13 is provided with four connecting joints, and a left connecting joint 131 and a right connecting joint 132 of each of the synchronous sliders 13 are connected with the hinged rib unfolding units 11 in the transverse unfolding mechanism 1 through different-layer rod end joints by using pin shafts; the front connecting joint 133 and the right connecting joint 134 of the synchronous slide block 13 are connected with the hinge rib connecting unit 21 in the longitudinal connecting mechanism 2 through different-layer rod end joints by pin shafts; the synchronous slider 13 linearly slides along the central rod 12, and the antenna is unfolded under the action of the driving source.
Referring to fig. 6, the five-way joint 14 is of an integrated structure, and an upper side joint of the five-way joint 14 is connected with the central rod 12 through a shaft hole; the left side node and the right side node of the five-way joint 14 are connected with the hinged rib unfolding unit 11 in the transverse unfolding mechanism 1 through the rod end joints on the same layer by using pin shafts; the front side node and the rear side node of the five-way joint 14 are connected with the hinged rib unfolding unit 21 in the longitudinal connecting mechanism 2 through rod end joints on the same layer by using pin shafts.
FIG. 7 is a schematic diagram of various types of connectors, including: fig. 7(a) is a same-layer rod end hinge, fig. 7(b) is a same-layer rod end hinge, fig. 7(c) is a same-layer non-rod end hinge, fig. 7(d) is an different-layer non-rod end hinge, and fig. 7(e) is a different-layer rod end hinge.
Referring to fig. 8, the mesh-surface support wire 3: the net surface supporting cables 3 are used for forming a supporting wire mesh 4 in a parabolic cylinder shape; short rods are arranged at two ends of each hinged rib unfolding unit 11, small holes are formed in the short rods so that flexible cables can penetrate through the short rods, and the short rods are fixedly connected with the transverse cables 31 and the longitudinal cables 32; each longitudinal cable 32 is connected between corresponding flexible cable connection points on adjacent hinge rib deployment units 11; each vertical adjustment cable 33 is connected between the hinge rib spreading unit 11 and the lateral cable 31 for securing the basic shape of the paraboloid.
Referring to fig. 9, the synchronous sliding block 13 slides downward to drive the hinge rib unfolding unit 11 and the hinge rib connecting unit 21 to synchronously unfold downward, thereby driving the parabolic cylinder antenna to unfold; on the contrary, the synchronous sliding block 13 slides upwards to drive the hinge rib unfolding unit 11 and the hinge rib connecting unit 21 to synchronously unfold upwards, so as to drive the parabolic cylinder antenna to fold.
The net-shaped parabolic cylinder antenna adopts a structural form of simultaneously unfolding along two directions, and a hinged rib structure and a synchronous sliding block are utilized to realize that the antenna has a larger unfolding caliber.
Claims (4)
1. An expandable parabolic cylinder antenna based on a hinged rib structure, characterized in that: the parabolic cylinder antenna comprises a transverse unfolding mechanism (1), a longitudinal connecting mechanism (2), a net surface supporting cable (3) and a metal wire net (4), wherein the longitudinal connecting mechanism (2) is used for connecting the transverse unfolding mechanism (1) and forms a framework of the parabolic cylinder antenna together with the transverse unfolding mechanism (1); the net surface supporting cables (3) are arranged on the transverse unfolding mechanism (1) and the longitudinal connecting mechanism (2) in a staggered mode and form a required parabolic cylinder shape with the metal wire net (4); the metal wire mesh (4) is fixed on the mesh surface supporting cable (3), the mesh surface supporting cable (3) supports the metal wire mesh (4) to enable the transverse unfolding mechanism (1) to form a paraboloid shape, the synchronous sliding block (13) slides downwards to drive the hinged rib unfolding unit (11) and the hinged rib connecting unit (21) to synchronously unfold downwards, and therefore the parabolic cylinder antenna is driven to unfold; on the contrary, the synchronous sliding block (13) slides upwards to drive the hinged rib unfolding unit (11) and the hinged rib connecting unit (21) to synchronously unfold upwards, so as to drive the parabolic cylinder antenna to fold;
the transverse unfolding mechanism (1) comprises 5 groups of hinged rib unfolding units (11), and the hinged rib unfolding units (11) are of a symmetrical structure taking the central rod (12) as an axis;
the hinged rib unfolding unit (11) comprises: the device comprises a central rod (12), a synchronous sliding block (13), a five-way joint (14), a left first supporting rod and a right first supporting rod (111), a left second supporting rod and a right second supporting rod (112), a left first moving connecting rod and a right first moving connecting rod (113), a left second moving connecting rod and a right second moving connecting rod (114), wherein the synchronous sliding block (13) is sleeved in the middle of the central rod (12), and the five-way joint (14) is connected to the bottom of the central rod (12); the structure of the five-way joint (14) comprises a front joint, a rear joint, a left joint, a right joint and a middle joint, wherein the left joint and the right joint are respectively connected with a third different-layer non-rod-end joint (1154), the left and right third-layer non-rod-end joints (1154) are respectively connected with a left and right first supporting rod (111) and a left and right second movement connecting rod (114), and the other ends of the left and right second movement connecting rods (114) are respectively connected with two ends of a synchronous sliding block (13); the middle of the left and right 2 second motion connecting rods (114) is separated by a second different-layer non-rod-end connector (1153), the left and right second different-layer non-rod-end connectors (1153) are respectively connected with left and right first motion connecting rods (113), the left and right first motion connecting rods (113) are parallel to the left and right 2 first supporting rods (111), and the left and right 2 first supporting rods (111) are respectively connected with a second supporting rod (112) through the same-layer non-rod-end connector (1151) by adopting pin shafts; the other end of the first motion connecting rod (113) is connected with the top of the second supporting rod (112) through a first different-layer non-rod-end joint (1152);
longitudinal coupling mechanism (2) have 4 groups, every group longitudinal coupling mechanism (2) is connected by two hinge rib coupling unit (21) and is constituteed, two hinge rib coupling unit (21) be symmetrical structure, include: the first longitudinal same-layer rod end hinge joint (221) and the second longitudinal same-layer rod end hinge joint (222) are formed by connecting a left longitudinal first motion connecting rod (212), a right longitudinal second motion connecting rod (213), a left longitudinal third motion connecting rod, a right support rod (211) and 4 hinge joints; the longitudinal first same-layer rod end hinge joint (221) is connected with the middle part of the left and right longitudinal third motion connecting rod; the longitudinal second same-layer rod end hinge joint (222) is connected with the end part of the left and right longitudinal third motion connecting rod, so that the left and right longitudinal third motion connecting rods form a triangle; the other end of the left and right longitudinal third motion connecting rod is connected with a left and right longitudinal second motion connecting rod (213) through a different-layer non-rod end connector; the other end of the left and right longitudinal second motion connecting rod (213) is connected with the middle part of the left and right longitudinal first motion connecting rod (212) through a same-layer non-rod-end joint, a longitudinal first same-layer rod-end joint (221) is simultaneously connected with a left and right supporting rod (211), the left and right supporting rod (211) is connected with the end part of the left and right longitudinal first motion connecting rod (212) through a different-layer non-rod-end joint, and the left and right supporting rod (211) and the left and right longitudinal second motion connecting rod (213) form a.
2. The deployable parabolic cylinder antenna based on a hinged rib structure as claimed in claim 1, wherein: the synchronous sliding block (13) is provided with four connecting joints, and a left connecting joint (131) and a right connecting joint (132) of the synchronous sliding block (13) are connected with a hinged rib unfolding unit (11) in the transverse unfolding mechanism (1) through different-layer rod end joints by adopting pin shafts; the front side connecting joint (133) and the right side connecting joint (134) of the synchronous sliding block (13) are connected with the hinge rib connecting unit (21) in the longitudinal connecting mechanism (2) through different-layer rod end joints by adopting pin shafts; the synchronous sliding block (13) slides linearly along the central rod (12), and the antenna is unfolded under the action of the driving source.
3. The deployable parabolic cylinder antenna based on a hinged rib structure as claimed in claim 1, wherein: the five-way joint (14) adopts an integrated structure, and the upper side joint of the five-way joint (14) is connected with the central rod (12) by adopting a shaft hole; the left side node and the right side node of the five-way joint (14) are connected with a hinged rib unfolding unit (11) in the transverse unfolding mechanism (1) through rod end joints on the same layer by pin shafts; the front side node and the rear side node of the five-direction joint (14) are connected with the hinge rib connecting unit (21) in the longitudinal connecting mechanism (2) through the rod end joint on the same layer by using pin shafts.
4. The deployable parabolic cylinder antenna based on a hinged rib structure as claimed in claim 1, wherein: the net surface supporting cable (3): the net surface supporting wire (3) is used for forming a supporting wire mesh (4) in a parabolic cylinder shape; short rods are arranged at two ends of each hinge rib unfolding unit (11), small holes are formed in the short rods so that flexible cables can penetrate through the short rods, and the short rods are fixedly connected with the transverse cables (31) and the longitudinal cables (32); each longitudinal cable (32) is connected between corresponding flexible cable connection points on adjacent hinge rib unfolding units (11); each vertical adjusting cable (33) is connected between the hinged rib unfolding unit (11) and the transverse cable (31) and is used for ensuring the basic shape of the paraboloid.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111129691B (en) * | 2020-01-09 | 2021-07-30 | 西安电子科技大学 | Expandable mesh parabolic cylinder antenna based on tension film |
| CN111430876B (en) * | 2020-04-16 | 2022-05-03 | 安徽大学 | Multi-superelastic hinge parabolic cylinder antenna deployable mechanism |
| CN112713379B (en) * | 2020-12-08 | 2021-11-12 | 西安电子科技大学 | Deployable antenna adopting Y-shaped rib cable net parabolic cylinder, control method and application |
| CN114171883B (en) * | 2021-11-02 | 2022-12-06 | 西安电子科技大学 | Parabolic cylinder deployable antenna system, control method and application |
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| Geometry Modeling of Truss Structure for a Space Deployable;Bo Dong等;《The 5th International Conference on Mechatronics and Mechanical Engineering (ICMME 2018)》;20190123;第256卷;全文 * |
| Torus-Less Inflated Membrane Reflector with an Exact Parabolic Center;Gyula Greschik等;《AIAA Journal》;20041231;第42卷(第12期);全文 * |
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