CN104682011A - Ground reflector in cable network structure - Google Patents
Ground reflector in cable network structure Download PDFInfo
- Publication number
- CN104682011A CN104682011A CN201510101476.9A CN201510101476A CN104682011A CN 104682011 A CN104682011 A CN 104682011A CN 201510101476 A CN201510101476 A CN 201510101476A CN 104682011 A CN104682011 A CN 104682011A
- Authority
- CN
- China
- Prior art keywords
- reflector
- rope
- ground
- frame
- truss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a ground reflector in a cable network structure. The ground reflector comprises a plurality of rectangular truss frame units (1), a plurality of ring structure connecting joints (2), a position and pitching control device (3), a feed source (4), an upper ring (5), a lower ring (6), a center cylinder (7), network surface cables (8), fastening cables (9) and dragging cables (11), wherein supporting cables (10) are mounted between the network surface cables and the fastening cables; the deformation of the network surface cables can be controlled by regulating the lengths of the supporting cables, and the shape of a reflecting surface is changed; through regulating and controlling the lengths of three telescopic rod units in the position and pitching control device, a position angle and a pitching angle of the ground reflector in the cable network structure satisfy the required positions and the required postures. The ground reflector is simple in structure and light and flexible, the position and the pitching of the ground reflector can be accurately controlled, the structural rigidity is improved, the surface accuracy of the reflector can be ensured, and the ground reflector is used for communication, navigation, detection, tracking, measurement and control for the ground surface environment.
Description
Technical field
The invention belongs to communication-electronics field, specifically a kind of cable net structure reflector, can be used on the ground or the electromagnetic energy on naval vessel or the convergence of luminous energy or reflection.
Background technology
Along with the development of the technology such as space flight, communication, the application such as communication, navigation, detection, tracking, observing and controlling all be unable to do without the complete movable large-scale reflector in ground, and bore is increasing.The complete movable large-scale reflector structure in ground comprises reflecting surface, supports backrest, the angle of pitch and azimuth adjusting device.Wherein, the profile precision of reflecting surface is the important indicator ensureing ground return device operating accuracy.Due to gravity under ground surface environment, wind carry, the effect of sleet load, be the profile precision ensureing reflecting surface, the real faceplate panels of the many employings of structure reflects panel of current ground large reflector.
The ground return utensil of real faceplate panels has following defect: for ensureing that the profile precision of ground return device just need increase reflector panel and support the rigidity of backrest, but the raising of rigidity just adds quality, and quality increase can increase gravity deformation, just need to increase further the rigidity of antenna pedestal for reducing gravity deformation.So repeatedly, along with the increase of reflector bore, the remarkable growth of overall antennas quality, construction cost almost becomes and must follow rule.The rotatable radio telescope of ground omnidirectional that bore is maximum in the world is just established in Xinjiang of China, and its bore reaches 110 meters, estimates that its antenna weights will reach more than 6000 tons.Convert known: its bore surface density is more than 630Kg/m
2.Obviously, build and control huge monster like this, its technical difficulty, construction cost will be all huge.
In space, cable net structure Large deployable antenna obtains generally to be applied.Because the gravity of space environment is almost equal to zero, the soft structure of this hard and soft combination can the profile precision of shaping expectation, and Ultra light-weight, its bore surface density is no more than 0.4Kg/m usually
2.But this cable net structure can not be directly used in ground.
Summary of the invention
The object of the invention is to the deficiency for above-mentioned prior art, a kind of ground cable net structure reflector is provided, with when ensureing reflecting surface ideal contour precision in ground return device, reducing quality and the construction cost of ground return device, being easy to Project Realization.
Technical scheme of the present invention is achieved in that
One, know-why
Existing ground return device is in order to improve the profile precision of reflecting surface, just need the rigidity increasing reflector panel and support backrest, but the raising of rigidity turn increases quality, and quality increase will increase gravity deformation, just need to increase further the rigidity of antenna pedestal for reducing gravity deformation.So repeatedly, along with the increase of reflector bore, overall antennas quality, construction cost certainly will significantly increase.
For this reason, the cable net structure reflector applications of space is formed ground cable net structure reflector to ground surface environment by the present invention.Its know-why is on the basis of patent of invention " a kind of space extensible catopter device " (patent No.: ZL200810017475.6), " fixing truss structure deployable surface device " (patent No.: ZL201010573066.1) of applicant, consider gravity under ground surface environment, wind carry, the effect of sleet load, change its version.Relative to adopting real faceplate panels as the ground return device of reflecting surface, the ground cable net structure reflector quality containing woven wire reflecting surface is light and can ventilative rain, also can adapt to the climatic environment on earth's surface.This ground cable net structure reflector is utilized to have the feature of Superlight, its rigidity of structure can be increased under the prerequisite of reflector type surface accuracy ensureing reflector, and significantly can not increase the quality of ground return device structure, with this can solve reflector type surface accuracy in existing ground return device improve and architecture quality rises between contradiction, solve the increase of construction cost and the growing concern of production cycle that existing ground return device causes due to architecture quality rising simultaneously.
Two. technical scheme
Technical thought of the present invention is: adopt periphery to fix truss and build reflecting surface outer toroid, centre strut is adopted to support feed, by flexible cable net forming reflection rope wire side between outer toroid and centre strut, it binds woven wire or flexible metal film, common formation cable net structure reflector.Reflector is connected with fixed platform by three retractable supports arms, is realized orientation and the pitch control subsystem of reflector by the length changing three support arms.
According to foregoing invention thinking, the invention provides the technical scheme of two kinds of cable net structure reflectors.
Technical scheme one:
A kind of ground cable net structure reflector, comprise: a plurality of rectangle truss element 1, a plurality of ring structure connect joint 2, orientation and pitch control subsystem device 3 and feed 4, every two rectangle truss elements 1 connect joint 2 by a ring structure and are fixedly connected with, form the circular truss structure be made up of upper end annulus 5 and lower end annulus 6, it is characterized in that:
Circular truss structure centre is provided with center drum 7, is provided with the flexible cable net that ground floor is crisscross between this center drum 7 and upper end annulus 5 of circular truss structure, and form the wire side rope 8 of reflecting surface, on it, binding has woven wire; The flexible cable net that the second layer is crisscross is installed between the lower end annulus 6 of center drum 7 and circular truss structure, forms the fastening rope 9 of reflecting surface; Longitudinal bracing rope 10 being installed between wire side rope 8 and fastening rope 9, by regulating the deformation of the cut to lengthen wire side rope 8 of longitudinal bracing rope 10, changing reflector shape; Between center drum 7 and circular truss structure, oblique pull has many flexible drawing ropes 11, to ensure the fixing of center drum 7 position; Orientation is flexibly connected with the lower end annulus 6 of circular truss structure with pitch control subsystem device 3; Feed 4 is arranged on the top of center drum 7.
Technical scheme two:
A kind of ground cable net structure reflector, comprise: a plurality of rectangle truss element 1, a plurality of ring structure connect joint 2, orientation is connected joint 13 with pitch control subsystem device 3, feed 4, multiple rib bar unit 12 and multiple rib structure, every two rectangle truss elements 1 connect joint 2 by a ring structure and are fixedly connected with, form the circular truss structure be made up of upper end annulus 5 and lower end annulus 6, it is characterized in that:
Circular truss structure centre is provided with center drum 7, is provided with the flexible cable net that ground floor is crisscross between this center drum 7 and upper end annulus 5 of circular truss structure, and form the wire side rope 8 of reflecting surface, on it, binding has woven wire; The flexible cable net that the second layer is crisscross is installed between the lower end annulus 6 of center drum 7 and circular truss structure, forms the fastening rope 9 of reflecting surface; Longitudinal bracing rope 10 being installed between wire side rope 8 and fastening rope 9, by regulating the deformation of the cut to lengthen wire side rope 8 of longitudinal bracing rope 10, changing reflector shape; Every two rib bar units 12 connect joint 13 by a rib structure and are fixedly connected with, to form linear rib structure 14 between wire side rope 8 and fastening rope 9, one end of this linear rib structure 14 is connected on center drum 7, and the other end is connected to the middle part of rectangle truss element 1; Orientation is flexibly connected with the lower end annulus 7 of circular truss structure with pitch control subsystem device 5; Feed 4 is arranged on the top of center drum 3.
The present invention's tool compared with existing correlation technique has the following advantages:
1. the present invention adopts two-layer crisscross flexible cable Netcom to cross the ground return device of stretch-draw formation reflecting surface, with the real faceplate panels of existing employing as reflecting surface ground return device compared with, save a large amount of metal materials, significantly reduce the quality of ground return device, reduce development cost.
2. the present invention adopts woven wire reflecting surface, the natural load such as wind, rain, snow are very easily passed, reflector is made to have better repellence to natural load such as wind, rain, snow, it is lower that cable net structure compares its coefficient of thermal expansion of metal material, this will significantly reduce the impact of thermal force on emitter profile precision, makes it be suitable for the application of ground surface environment.
3. the present invention is owing to using light cable net structure, therefore simple truss element composition circular ring structure only need be adopted to be fixed rope net, eliminate the supporting girder structure that existing real face ground return device is huge, namely simple supporting construction is used just can to ensure desirable profile precision, greatly simplifie the formation of reflector, thus realize the control of its orientation and pitching easily, significantly reduce development, running and maintenance cost further, shorten the lead time.
4. the present invention is simple because whole system is formed, and is applicable to rapid-assembling and construction, significantly reduces the mobile cost of transportation of ground return device.
Accompanying drawing explanation
Fig. 1 is first embodiment of the present invention overall structure schematic diagram;
Fig. 2 is the cable net structure reflecting surface schematic diagram in Fig. 1;
Fig. 3 is second embodiment of the invention overall structure schematic diagram;
Fig. 4 is the cable net structure reflecting surface schematic diagram in Fig. 3;
Fig. 5 is orientation and pitch control subsystem device schematic diagram in Fig. 1;
Fig. 6 is Fig. 3 orientation and pitch control subsystem device schematic diagram;
Fig. 7 is the rectangle truss element schematic diagram in Fig. 1, Fig. 3;
Fig. 8 is the rib bar unit schematic diagram in Fig. 3;
Fig. 9 is that the ring structure in Fig. 1, Fig. 3 connects joint schematic diagram;
Figure 10 is that the rib structure in Fig. 3 connects joint schematic diagram;
Figure 11 is the analogous diagram of first embodiment of bore 15m being carried out under operating mode of looking up to heaven to profile precision;
Figure 12 is the profile precision simulation figure of the first embodiment under the angle of pitch is 45 degree of operating modes to bore 15m;
Figure 13 to increase weight the profile precision simulation figure after feed to first embodiment of bore 15m under the angle of pitch is 45 degree of operating modes;
Figure 14 is the orientation of the first embodiment in the second embodiment to bore 15m and the profile precision simulation figure of pitch control subsystem device under operating mode of looking up to heaven;
Figure 15 is the profile precision simulation figure of 30 degree to the orientation of the first embodiment in the second embodiment of bore 15m and pitch control subsystem device at the angle of pitch;
Figure 16 adopts the orientation in the second embodiment and pitch control subsystem device to be 30 degree and the profile precision simulation figure of the feed that simultaneously increases weight at the angle of pitch to first embodiment of bore 15m;
Figure 17 is the analogous diagram of the orientation of the second embodiment in the first embodiment of bore 15m and pitch control subsystem device being carried out under operating mode of looking up to heaven to profile precision;
Figure 18 is the analogous diagram of the orientation of the second embodiment in the first embodiment to bore 15m and pitch control subsystem device its profile precision under the angle of pitch is 45 degree of operating modes;
Figure 19 to increase weight the profile precision simulation figure after feed to the orientation of the second embodiment in the first embodiment of bore 15m and pitch control subsystem device under the angle of pitch is 45 degree of operating modes;
Figure 20 is the analogous diagram first embodiment of bore 15m being increased under operating mode of looking up to heaven to its profile precision after sleet gravitational load;
Figure 21 is the profile precision simulation figure after increasing sleet gravitational load to first embodiment of bore 15m under the angle of pitch is 45 degree of operating modes;
Figure 22 increases the profile precision simulation figure after sleet gravitational load and feed quality to first example structure of bore 15m under the angle of pitch is 45 degree of operating modes;
Figure 23 is the profile precision simulation figure of the first embodiment when the angle of pitch is 60 degree to bore 120m.
Referring to accompanying drawing, embodiments of the invention and embodiment are described in further detail:
Embodiment
Embodiment 1, the reflector of ring frame pillar cable mesh reflector structure.
See figures.1.and.2, the reflector of this example, comprising: a plurality of rectangle truss element 1, a plurality of ring structure connect joint 2, orientation and pitch control subsystem device 3, feed 4, upper end annulus 5, lower end annulus 6, center drum 7 and longitudinal bracing rope 10.Every two rectangle truss elements 1 connect joint 2 by a ring structure and are fixedly connected to form the circular truss structure be made up of upper end annulus 5 and lower end annulus 6; Center drum 7 is arranged on the center of circular truss structure, and feed 4 is arranged on the top of center drum 7; Be provided with the flexible cable net that ground floor is crisscross between the upper end annulus 5 of center drum 7 and circular truss structure, form the wire side rope 8 of reflecting surface, on wire side rope, binding has woven wire; The flexible cable net that the second layer is crisscross is installed between the lower end annulus 6 of center drum 7 and circular truss structure, forms the fastening rope 9 of reflecting surface; Supporting cables 10 is arranged between wire side rope 8 and fastening rope 9, by regulating the deformation of the cut to lengthen wire side rope 8 of longitudinal bracing rope 10, changes reflector shape; Between center drum 7 and circular truss structure, oblique pull has many flexible drawing ropes 11, to ensure the fixing of center drum 7 position; Orientation and pitch control subsystem device 3 are made up of the flexible adjustment unit that three structures are identical, and these three flexible adjustment units are flexibly connected by spherical hinge with the lower end annulus 6 of the circular truss structure of ground rope net reflector respectively, distribute in equilateral triangle.
With reference to Fig. 5, it is " work " font contiguous blocks that ring structure connects joint 2, and there is the groove of two centrally axial symmetry distributions its left and right sides; " U " type block that " work " font contiguous block is divided into two, left and right crossing by central shaft, the angle of two " U " type block in intersection is 160 ~ 180 degree, the size of this angle is relevant with the number of rectangle truss element 1, namely according to formula: θ=180* (1-2/n) determines, wherein n is the number of rectangle truss element 1, n >=4; On the left of this, the center of " U " type block has left through hole 201, and on the right side of this, the center of " U " type block has right through hole 202; The center of two " U " type block intersection, left and right is provided with middle connecting hole 203, and orientation and pitch control subsystem device 3 are fixed in middle connecting hole 203 by spherical hinge.
With reference to Fig. 6, the rectangle truss element 1 in this example, is made up of frame cross tube 101, frame sheer pole 102, the left montant of frame 103, the right montant 104 of frame and support bar 105; The two ends, left and right of frame cross tube 101 are provided with two and above connect arthrodesis holes 106 and 107, connect arthrodesis hole 108 and 109 under the two ends, left and right of frame sheer pole 102 are provided with two.Wherein connecting hole 106 fixes with the right through hole 202 that first ring is connected joint on first, adjacent rectangle truss element 1 second on connecting hole 107 fix with the left through hole 201 that first ring is connected joint; The left through hole 201 that on second, connecting hole 107 and second ring are connected joint fixes, adjacent rectangle truss element 1 first on connecting hole 106 fix with the right through hole 202 that second ring is connected joint; First time connecting hole 108 fixes with the right through hole 202 that the 3rd ring is connected joint, and the 3rd time connecting hole 109 of adjacent rectangle truss element 1 fixes with the left through hole 201 that the 3rd ring is connected joint; Second time connecting hole 109 fixes with the left through hole 201 that the 4th ring is connected joint, and first time connecting hole 108 of adjacent rectangle truss element 1 fixes with the right through hole 202 that the 4th ring is connected joint.
In the present embodiment for convenience of description, choose rectangle truss element 1 is connected joint 2 number n with ring structure and be 48, but be not limited thereto.First rectangle truss element be connected arthrodesis by first ring structure between second rectangle truss element and connect, second rectangle truss element be connected arthrodesis by second ring structure between the 3rd rectangle truss element and connect.。。。。。The like, the 48 rectangle truss element be connected arthrodesis by the 48 ring structure between first rectangle truss element and connect thus form circular truss structure.Fastening rope 8 is fixed in the rope net fixing hole 110 of frame cross tube 101, and wire side rope 9 is fixed in the rope net fixing hole 111 of frame sheer pole 102, and flexible drawing rope 11 is fixed in the rope fastening hole 112 in the middle part of the left montant 103 of frame.Frame cross tube 101, frame sheer pole 102, the left montant of frame 103 and the right montant of frame 104 be the fixing peripheral frame forming rectangle truss element 1 successively, the two ends of support bar 105 are separately fixed at two of rectangular periphery frame on angle point, rectangular periphery frame is diagonally divided into two delta-shaped regions, because triangular structure has structural stability, thus strengthen the stability of strutting system of rectangle truss element 1; When rectangular periphery frame oversize, in delta-shaped region, increase support bar, be more little delta-shaped region by this Region dividing, the stability of strutting system of rectangle truss element 1 will be strengthened further.
With reference to Fig. 7, each flexible adjustment unit comprises: expansion link 301 and pedestal 302; Expansion link 301 is connected joint 2 with ring structure respectively by spherical hinge and pedestal 302 is flexibly connected, and pedestal 302 is fixedly connected with between ground; Expansion link 301 is divided into urceolus and inner core two parts, and its urceolus lower end is provided with servomotor, and outer barrel contains leading screw, is provided with turbine and worm decelerator between servomotor and leading screw; The inner core of expansion link 301 is fixed with nut, is coordinated between nut with leading screw by screw pair, when servomotor drives leading screw to rotate, nut will carry out rectilinear motion along leading screw, and what control servomotor rotates and reverse the elongation and shortening that can control expansion link 301.
This ground cable net structure reflector to be looked up to heaven placement under installation initial condition, the circular truss structure of reflector is parallel to the ground, according to job requirement, control system Received signal strength, send instruction to the servomotor on three flexible adjustment units, drive servomotor to rotate, thus control expansion link 301 carries out stretching motion, controlled the length of three telescopic rod units by accurate adjustment, make the azimuth of ground cable net structure reflector and the angle of pitch meet required pose.
Embodiment 2, the reflector of ring rib pillar cable mesh reflector structure.
With reference to Fig. 3 and Fig. 4, the reflector of this example, comprise: a plurality of rectangle truss element 1, a plurality of ring structure connect joint 2, orientation is connected joint 13 with pitch control subsystem device 3, feed 4, upper end annulus 5, lower end annulus 6, center drum 7, multiple rib bar unit 12 and multiple rib structure, every two rectangle truss elements 1 connect joint 2 by a ring structure and are fixedly connected with, and form the circular truss structure be made up of upper end annulus 5 and lower end annulus 6; Center drum 7 is arranged on the center of circular truss structure, and feed 4 is arranged on the top of center drum 7; Be provided with the flexible cable net that ground floor is crisscross between the upper end annulus 5 of center drum 7 and circular truss structure, form the wire side rope 8 of reflecting surface, on wire side rope, binding has woven wire; The flexible cable net that the second layer is crisscross is installed between the lower end annulus 6 of center drum 7 and circular truss structure, forms the fastening rope 9 of reflecting surface; Supporting cables 10 is arranged between wire side rope 8 and fastening rope 9, by regulating the deformation of the cut to lengthen wire side rope 8 of longitudinal bracing rope 10, changes reflector shape; Every two rib bar units 12 connect joint 13 by a rib structure and are fixedly connected with, linear rib structure 14 is formed between wire side rope 8 and fastening rope 9, one end of this linear rib structure 14 connects joint by rib cylinder and is connected on center drum 7, the other end connects by ring rib the middle part that joint is connected to rectangle truss element 1, rib cylinder connection joint is connected joint concrete structure with ring rib is identical with " a kind of space extensible catopter device " patent of applicant with type of attachment, and the patent No. is CN200810017475.6.Orientation and pitch control subsystem device 3 are connected by three articulate with the lower end annulus 6 of the circular truss structure of ground rope net reflector respectively.
Annular truss structure in this example and type of attachment identical with the annular truss structure in embodiment 1.
With reference to Fig. 8, it is " work " font contiguous blocks that rib structure connects joint 13, and there is the groove of two centrally axial symmetry distributions its left and right sides; " U " type block that " work " font contiguous block is divided into two, left and right crossing by central shaft, on the left of this, the center of " U " type block has left through hole 1301, and on the right side of this, the center of " U " type block has right through hole 1302; The center of two " U " type block intersections, left and right is provided with middle connecting hole 1303, and longitudinal bracing rope 10 connecting hole 1303 from this passes and is connected with fastening rope 9.
With reference to Fig. 9, rib bar unit about 12 two ends in this example are respectively arranged with the first connecting hole 1201 and the second connecting hole 1202.The left through hole 1301 that wherein the second connecting hole 1202 is connected joint with rib structure fixes, and the right through hole 1302 that rib structure connects joint fixes with the first connecting hole 1201 of adjacent rib bar unit.
, the number choosing rib bar unit is 4 in this example for convenience of description, rib structure connect joint number be 3, but be not limited thereto.The middle part of rectangle truss element be connected arthrodesis by ring rib between first rib bar unit and connect, first rib bar unit be connected arthrodesis by first rib structure between second rib bar unit and connect, be connected arthrodesis by second rib structure between first and second rib bar unit with the 3rd rib bar unit to connect, the 3rd rib bar unit be connected arthrodesis by the 3rd rib structure between the 4th rib bar unit and connect; 4th is connected arthrodesis by rib cylinder between rib bar unit with center drum 7 and connects.
With reference to Figure 10, orientation and pitch control subsystem device 3 comprise central support posts 31, rotation platform 32, triangular truss 33, three base for supporting 34,35,36 and expansion link 37; Central support posts 31 is vertically fixed on ground, and rotation platform 32 is arranged in central support posts 31, and triangular truss 33 is fixedly connected with rotation platform 32; The lower end of central support posts 31 is provided with servomotor, it is inner containing central rotating shaft, central rotating shaft is fixedly connected with the bottom surface center of rotation platform 32, turbine and worm decelerator is installed between servomotor and central rotating shaft, driving rotation platform rotates by the rotation of servomotor, thus drive triangular truss 33 to rotate, the frame of triangular truss 33 is isosceles triangle, many cross one another support bars are fixed on the frame of triangular truss 33, frame inside division is become multiple delta-shaped region, to strengthen structural stability; Three base for supporting 34,35,36 three summits places laying respectively at triangular truss 33, adopt tetrahedroid truss structure, tetrahedron truss comprises 4 triangular trusses, increasing support bar in each triangular truss inside, is more little delta-shaped region by this Region dividing, strengthens rigidity and the stability of base for supporting support further.Three rings of rope net reflector lower end, ground annulus 6 connect joint 2 respectively by hinge and base for supporting 34,35 and expansion link 37 one end be flexibly connected, the other end of expansion link 37 is connected on base for supporting 36, and the execution mode of expansion link 37 is identical with the expansion link 301 in embodiment 1.
This ground cable net structure reflector to be looked up to heaven placement under installation initial condition, the circular truss structure of reflector is parallel to the ground, according to job requirement, control system Received signal strength, instruction is sent to expansion link 37 and the servomotor of central support posts 31 lower end, driving servomotor rotates, thus control expansion link 301 and rotation platform 32 move.By controlling the anglec of rotation of rotation platform 32, making ground cable net structure reflector meet required azimuth, by controlling the length of root expansion link 37, making ground cable net structure reflector meet the required angle of pitch.
Effect of the present invention can be verified by following emulation experiment:
Emulation 1, carries out the emulation of profile precision under operating mode of looking up to heaven to first embodiment of bore 15m.
1.1) analogue system and structure
This tests system used is launch the reflector that bore is the ring frame pillar cable mesh reflector structure of 15m.
The circular truss structure of this reflector is spliced successively by 48 rectangle truss elements, and its reflecting surface burnt footpath ratio is 0.8.The height of rectangle truss list is 0.92m, and its ring bar external diameter is 0.026m, and internal diameter is 0.024m, and the external diameter of pole is 0.016m, and internal diameter is 0.014m.Center drum height 3.5m, diameter 0.03m.Support cable mesh external diameter is 0.003 meter, and other all rope net external diameter is 0.001 meter.All rigid bars select carbon fibre material, and kevlar fiber material selected by flexible cable net.
1.2) content is emulated
Looked up to heaven by the reflecting surface of above-mentioned reflector placement, under gravity, carry out standing balance to reflecting surface and solve, simulation result as shown in figure 11.
As can be seen from Figure 11, the maximum distortion of its reflecting surface is 0.0075m.By calculating, can obtain its gross mass and be less than 60Kg, surface density is less than 0.4Kg/m
2, mirror surface root-mean-square error is less than 0.005m.These data show that this ring frame pillar cable net structure reflector is under ground surface environment, has outstanding integrated performance index.
Emulation 2, to the profile precision simulation of the first embodiment under the angle of pitch is 45 degree of operating modes of bore 15m.
Structural parameters are with emulation 1, and be the angle of pitch 45 degree of placements by the reflecting surface of reflector, under gravity, carry out standing balance to reflecting surface and solve, simulation result as shown in figure 12.
As can be seen from Figure 12, its maximum distortion is 0.0062m, and mirror surface root-mean-square error is less than 0.004m.Emulated data shows this reflector under normal operating condition, and profile precision can not reduce.
Emulation 3, to increase weight the profile precision simulation after feed to first embodiment of bore 15m under the angle of pitch is 45 degree of operating modes.
Structural parameters are with emulation 1, and after feed increases 10Kg quality, then be the angle of pitch 45 degree of placements by reflecting surface, under gravity, carry out standing balance and solve, simulation result as shown in figure 13.
As can be seen from Figure 13, its maximum distortion is 0.0085m, and mirror surface root-mean-square error is less than 0.005m.Emulated data shows, this reflector under normal operating condition, still has outstanding integrated performance index.
Emulation 4, to first embodiment of bore 15m by the orientation in the second embodiment and pitch control subsystem device the profile precision simulation figure under operating mode of looking up to heaven.
4.1) analogue system and structure
It is launch the reflector that bore is the ring frame pillar cable mesh reflector structure of 15m that the present invention tests system used, adopts the orientation in the second embodiment and pitch control subsystem device.
The circular truss structure of this reflector is spliced successively by 48 rectangle truss elements, and reflecting surface burnt footpath ratio is 0.8.The height of rectangle truss element is 0.92m, and its ring bar external diameter is 0.020m, and internal diameter is 0.019m, and pole external diameter is 0.016m, and internal diameter is 0.015m.Center drum height 3.5m, diameter 0.03m.Support cable mesh external diameter is 0.005 meter, and other all rope net external diameter is 0.001 meter.All rigid bars select carbon fibre material, and kevlar fiber material selected by flexible cable net.
4.2) content is emulated
Looked up to heaven by the reflecting surface of above-mentioned reflector placement, adopt the orientation in the second embodiment and pitch control subsystem device, under gravity, carry out standing balance to reflecting surface and solve, simulation result as shown in figure 14.
As can be seen from Figure 14, its maximum distortion is 0.0260m.By calculating, can obtain its gross mass and be less than 30Kg, its surface Root Mean Square error is less than 0.009m, and surface density is less than 0.2Kg/m
2.These data show that this ring frame pillar cable net structure reflector is under ground surface environment, can carry out compromise optimization between quality and profile precision.
Emulation 5 is the profile precision simulation of 30 degree with the orientation in the second embodiment and pitch control subsystem device at the angle of pitch to first embodiment of bore 15m.
Structural parameters are identical with emulation 4, and be the angle of pitch 30 degree of placements by the reflecting surface of reflector, under gravity, carry out standing balance and solve, simulation result as shown in figure 15.
As can be seen from Figure 15, its maximum distortion is 0.0094m, and mirror surface root-mean-square error is less than 0.006m.Emulated data shows this reflector under normal operating condition, and profile precision is better than this egregious cases of looking up to heaven.
Emulation 6, adopts the orientation in the second embodiment and pitch control subsystem device to be 30 degree and the profile precision simulation of the feed that simultaneously increases weight at the angle of pitch to first embodiment of bore 15m.
Structural parameters are identical with emulation 4, and feed increases 9Kg quality, then is the angle of pitch 30 degree of placements by the reflecting surface of reflector, under gravity, carry out standing balance and solve, simulation result as shown in figure 16.
As can be seen from Figure 16, its maximum distortion is 0.0144m, and mirror surface root-mean-square error is less than 0.008m.Emulated data shows this reflector under normal operating condition, still has outstanding integrated performance index.
Emulation 7, carries out the emulation of profile precision under operating mode of looking up to heaven with the orientation in the first embodiment and pitch control subsystem device to second embodiment of bore 15m.
7.1) analogue system and structure
This tests system used is launch the reflector that bore is the ring rib pillar cable mesh reflector structure of 15m, adopts the orientation in the first embodiment and pitch control subsystem device.
The circular truss structure of this reflector is spliced successively by 24 rectangle truss elements, and reflecting surface burnt footpath ratio is 0.6.The height of rectangle truss element is 0.1m, and ring bar external diameter is 0.026m, and internal diameter is 0.022m, and its pole external diameter is 0.018m, and internal diameter is 0.016m.Adopt 6 ribs bar structures, the external diameter of rib bar is 0.026m, and internal diameter is 0.022m.Center drum height 2.4m, diameter 0.03m.All rope net external diameters are 0.001 meter.All rigid bars select carbon fibre material, and kevlar fiber material selected by flexible cable net.
7.2) content is emulated
Looked up to heaven by the reflecting surface of above-mentioned reflector placement, under gravity, carry out standing balance and solve, simulation result as shown in figure 17.
As can be seen from Figure 17, its maximum distortion is 0.0145m.By calculating, can obtain its gross mass and be less than 60Kg, the surface Root Mean Square error of reflecting surface is less than 0.005m, and surface density is less than 0.4Kg/m
2.These data show that this ring rib pillar cable net structure reflector is under ground surface environment, has outstanding integrated performance index.
Emulation 8, to the emulation of the second embodiment its profile precision under the angle of pitch is 45 degree of operating modes by the orientation in the first embodiment and pitch control subsystem device of bore 15m.
Structural parameters are identical with emulation 7, and be the angle of pitch 45 degree of placements by the reflecting surface of reflector, under gravity, carry out standing balance and solve, simulation result as shown in figure 18.
As can be seen from Figure 18, its maximum distortion is 0.0198m, and mirror surface root-mean-square error is less than 0.006m.Emulated data shows this reflector under normal operating condition, and profile precision is normal.
Emulation 9, to increase weight the profile precision simulation after feed with the orientation in the first embodiment and pitch control subsystem device to second embodiment of bore 15m under the angle of pitch is 45 degree of operating modes.
Structural parameters are identical with emulation 1, and feed increases 5Kg quality, then is the angle of pitch 45 degree of placements by reflecting surface, under gravity, carry out standing balance and solve, simulation result as shown in figure 19.
As can be seen from Figure 19, its maximum distortion is 0.0190m, and mirror surface root-mean-square error is less than 0.006m.Emulated data shows this reflector under normal operating condition, still has outstanding integrated performance index.
Emulation 10, increases the emulation of its profile precision after sleet gravitational load under operating mode of looking up to heaven to first embodiment of bore 15m.
Structural parameters are identical with emulation 1, placement of being looked up to heaven by the reflecting surface of reflector, and consider sleet load, increase the gravitational load of 1 times, carry out standing balance and solve, simulation result as shown in figure 20.
As can be seen from Figure 20, its maximum distortion is 0.0172m.By calculating, can obtain its gross mass and be less than 60Kg, mirror surface root-mean-square error is less than 0.010m, and surface density is less than 0.4Kg/m
2.These data show that this reflector is under additional load effect, and profile precision reduces.
Emulation 11, the profile precision simulation after sleet gravitational load is increased under the angle of pitch is 45 degree of operating modes to first embodiment of bore 15m.
Structural parameters are identical with emulation 1, are the angle of pitch 45 degree of placements by the reflecting surface of reflector, and consider high wind load, increase the gravitational load of vertical 0.5 times, carry out standing balance and solve, simulation result as shown in figure 21.
As can be seen from Figure 21, its maximum distortion is 0.0110m, and mirror surface root-mean-square error is less than 0.006m.Emulated data shows this reflector under normal operating condition, and profile precision can not reduce.
Emulation 12, increases the profile precision simulation after sleet gravitational load and feed quality to first example structure of bore 15m under the angle of pitch is 45 degree of operating modes.
Structural parameters are identical with emulation 1, feed increases 10Kg quality, then is the angle of pitch 45 degree of placements by reflecting surface, consider high wind load, and increase the gravitational load of laterally 0.5 times, carry out standing balance and solve, simulation result as shown in figure 22.
As can be seen from Figure 22, its maximum distortion is 0.0112m, and mirror surface root-mean-square error is less than 0.007m.Emulated data shows this reflector under normal operating condition, still has outstanding integrated performance index.
Emulation 13, to the profile precision simulation of the first embodiment when the angle of pitch is 60 degree of bore 120m.
13.1) analogue system and structure
This tests system used is launch the reflector that bore is the ring rib pillar cable mesh reflector structure of 120m.
The circular truss structure of this reflector is spliced successively by 48 rectangle truss elements, and reflecting surface burnt footpath ratio is 0.5.The height of rectangle truss element is 6.0m, and ring bar external diameter is 0.030m, and internal diameter is 0.028m, and pole external diameter is 0.030m, and internal diameter is 0.028m.Center drum height 51.0m, diameter is 0.3m.Support cable mesh external diameter is 0.010m, and fastening rope net external diameter is 0.004m, and wire side rope net external diameter is 0.002m, and drag rope external diameter is 0.001 meter.All rigid bars select carbon fibre material, and kevlar fiber material selected by flexible cable net.
13.2) content is emulated
The reflecting surface of reflector to be looked up to heaven placement, adopt the orientation in the first embodiment and pitch control subsystem device.Arrange feed and the wire side quality of 160Kg, apply centrosymmetric 3 constraints to circular truss structure, under gravity, carry out standing balance and solve, simulation result as shown in figure 23.
As can be seen from Figure 23, the maximum distortion of reflecting surface is 0.1258m.By calculating, can obtain its gross mass and be less than 900Kg, mirror surface root-mean-square error is less than 0.030m, and surface density is less than 0.1Kg/m
2.These data show that this ring frame pillar cable net structure reflector is under ground surface environment, for relatively low operating frequency, has outstanding integrated performance index.
Above simulation result more comprehensively understands the applicable feasibility of cable net structure reflector of the present invention under ground surface environment.Obviously suitably increase the rigidity of structure, suitably increase mass of system, its profile precision has improves space on a large scale.Carry out system optimization for embody rule object, cable net structure reflector will have great application potential at ground surface environment.
Claims (9)
1. a ground cable net structure reflector, comprise: a plurality of rectangle truss element (1), a plurality of ring structure connect joint (2), orientation and pitch control subsystem device (3) and feed (4), every two rectangle truss elements (1) connect joint (2) by a ring structure and are fixedly connected with, form the circular truss structure be made up of upper end annulus (5) and lower end annulus (6), it is characterized in that:
Circular truss structure centre is provided with center drum (7), ground floor crisscross flexible cable net is installed between the upper end annulus (5) of this center drum (7) and circular truss structure, form the wire side rope (8) of reflecting surface, on it, binding has woven wire; The second layer crisscross flexible cable net is installed between the lower end annulus (6) of center drum (7) and circular truss structure, forms the fastening rope (9) of reflecting surface; Longitudinal bracing rope (10) being installed between wire side rope (8) and fastening rope (9), by regulating the deformation of the cut to lengthen wire side rope (8) of longitudinal bracing rope (10), changing reflector shape; Between center drum (7) and circular truss structure, oblique pull has many flexible drawing ropes (11), to ensure the fixing of center drum (7) position; Orientation is flexibly connected with the lower end annulus (6) of circular truss structure with pitch control subsystem device (3); Feed (4) is arranged on the top of center drum (7).
2. ground according to claim 1 cable net structure reflector, is characterized in that: rectangle truss element (1) is made up of frame cross tube (101), frame sheer pole (102), the left montant of frame (103), the right montant of frame (104) and support bar (105); The two ends, left and right of frame cross tube (101) are provided with two upper connections arthrodesis hole (106) and (107), connect arthrodesis hole (108) and (109) under the two ends, left and right of frame sheer pole (102) are provided with two, these four fixing holes are all for retainer ring anatomical connectivity joint (2); Frame cross tube (101) is provided with multiple rope net fixing hole (110,111) with the centre of frame sheer pole (102), for fixing fastening rope (8) and wire side rope (9); The left montant of frame (103) is provided with rope fastening hole (111), for fixing flexible drag rope (11); Frame cross tube (101), frame sheer pole (102), the left montant of frame (103) and the right montant of frame (104) be the fixing peripheral frame forming rectangle truss element (1) successively, the two ends of support bar (105) are separately fixed at two of rectangular periphery frame on angle point, to strengthen the stability of rectangle truss element (1).
3. ground according to claim 1 cable net structure reflector, is characterized in that: ring structure connect joint (2) be " work " font contiguous block, its left and right sides have two centrally axial symmetry distribution groove; " U " type block that " work " font contiguous block is divided into two, left and right crossing by central shaft, the angle of two " U " type block in intersection is 160 ~ 180 degree; On the left of this, the center of " U " type block has left through hole (201), and on the right side of this, the center of " U " type block has right through hole (202), and these two through holes are for connecting rectangle truss element (1); The center of two " U " type block intersection, left and right is provided with middle connecting hole (203), can be used for connection orientation and pitch control subsystem device (3).
4. ground according to claim 1 cable net structure reflector, is characterized in that: orientation and pitch control subsystem device (3) are made up of the flexible adjustment unit that three structures are identical; Three ring structures that these three flexible adjustment units are connected to rope net reflector lower end annulus, ground (6) connect on joint (2), distribute in equilateral triangle; Each flexible adjustment unit comprises: expansion link (301) and pedestal (302); Expansion link (301) is connected joint (2) with ring structure respectively by spherical hinge and pedestal (302) is flexibly connected, and pedestal (302) is fixedly connected with between ground; Change the length of three flexible adjustment units, the control to cable net structure reflector azimuth, ground and the angle of pitch can be completed.
5. a ground cable net structure reflector, comprise: a plurality of rectangle truss element (1), a plurality of ring structure connect joint (2), orientation is connected joint (13) with pitch control subsystem device (3), feed (4), multiple rib bar unit (12) and multiple rib structure, every two rectangle truss elements (1) connect joint (2) by a ring structure and are fixedly connected with, form the circular truss structure be made up of upper end annulus (5) and lower end annulus (6), it is characterized in that:
Circular truss structure centre is provided with center drum (7), ground floor crisscross flexible cable net is installed between the upper end annulus (5) of this center drum (7) and circular truss structure, form the wire side rope (8) of reflecting surface, on it, binding has woven wire; The second layer crisscross flexible cable net is installed between the lower end annulus (6) of center drum (7) and circular truss structure, forms the fastening rope (9) of reflecting surface; Longitudinal bracing rope (10) being installed between wire side rope (8) and fastening rope (9), by regulating the deformation of the cut to lengthen wire side rope (8) of longitudinal bracing rope (10), changing reflector shape; Every two rib bar units (12) connect joint (13) by a rib structure and are fixedly connected with, to form linear rib structure (14) between wire side rope (8) and fastening rope (9), one end of this linear rib structure (14) is connected on center drum (7), and the other end is connected to the middle part of rectangle truss element (1); Orientation is flexibly connected with the lower end annulus (7) of circular truss structure with pitch control subsystem device (5); Feed (4) is arranged on the top of center drum (7).
6. ground according to claim 5 cable net structure reflector, it is characterized in that: the two ends, left and right of rib bar unit (12) are provided with two connecting holes (1201) and (1202), these two connecting holes are used for fixing rib anatomical connectivity joint (13).
7. ground according to claim 5 cable net structure reflector, is characterized in that: rib structure connect joint (13) be " work " font contiguous block, its left and right sides have two centrally axial symmetry distribution groove; " U " type block that " work " font contiguous block is divided into two, left and right crossing by central shaft, on the left of this, the center of " U " type block has left through hole (1301), on the right side of this, the center of " U " type block has right through hole (1302), and these two through holes are used for connection rib bar unit (12); The center of two " U " type block intersections, left and right is provided with middle connecting hole (1303), and longitudinal bracing rope (10) connecting hole (1303) from this passes and is connected with fastening rope (9).
8. ground according to claim 5 cable net structure reflector, it is characterized in that: orientation and pitch control subsystem device (3) comprise central support posts (31), rotation platform (32), triangular truss (33), three base for supporting (34,35,36) and expansion link (37); Central support posts (31) is vertically fixed on ground, and triangular truss (33) is arranged in central support posts (31) by rotation platform (32); Three base for supporting (34,35,36) lay respectively at three summits place of triangular truss (33); Three rings on rope net reflector lower end annulus, ground (6) connect joint (2) respectively by hinge and base for supporting (34,35) and expansion link (37) one end be flexibly connected, the other end of expansion link (37) is connected on base for supporting (36); By regulating orientation and the length of expansion link (37) of rotation platform (32), the azimuth of ground cable net structure reflector and the angle of pitch are controlled.
9. ground according to claim 8 cable net structure reflector, it is characterized in that: the frame of triangular truss (33) is isosceles triangle, many cross one another support bars are fixed on the frame of triangular truss (33), frame inside division is become multiple delta-shaped region, to strengthen structural stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510101476.9A CN104682011B (en) | 2015-03-08 | 2015-03-08 | Ground cable net structure reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510101476.9A CN104682011B (en) | 2015-03-08 | 2015-03-08 | Ground cable net structure reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104682011A true CN104682011A (en) | 2015-06-03 |
| CN104682011B CN104682011B (en) | 2017-06-13 |
Family
ID=53316772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510101476.9A Active CN104682011B (en) | 2015-03-08 | 2015-03-08 | Ground cable net structure reflector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104682011B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054932A (en) * | 2016-07-04 | 2016-10-26 | 西安电子科技大学 | Annular cylinder type cable net reflecting system driven by single telescopic rod turntable |
| CN106159458A (en) * | 2016-06-03 | 2016-11-23 | 西安电子科技大学 | The ring frame column type rope net reflecting system that three expansion links drive |
| CN106200684A (en) * | 2016-07-04 | 2016-12-07 | 西安电子科技大学 | The annulated column type rope net reflex system that three expansion links drive |
| CN106446385A (en) * | 2016-09-14 | 2017-02-22 | 西安电子科技大学 | Method for analyzing in-orbit vibration of cable-mesh reflector space-borne antenna |
| CN107293861A (en) * | 2017-06-16 | 2017-10-24 | 哈尔滨工业大学 | Based on the external winding rib Large Deployable reflecting surface of center deformation truss |
| CN109119741A (en) * | 2018-09-29 | 2019-01-01 | 中国科学院国家天文台 | A kind of complete movable huge radio telescope |
| CN109244678A (en) * | 2018-09-27 | 2019-01-18 | 中国科学院国家天文台 | A kind of rope system basis telescope reflecting surface structure |
| CN110137659A (en) * | 2019-05-22 | 2019-08-16 | 南京吉凯微波技术有限公司 | A kind of the folding assembling-disassembling structure and mounting and dismounting method of vehicular heavy caliber radar antenna |
| CN110581359A (en) * | 2019-09-23 | 2019-12-17 | 西安三石航天科技有限公司 | large-scale upset platform of transporting |
| CN114503361A (en) * | 2019-09-24 | 2022-05-13 | 空中客车防务及航天股份有限公司 | Antenna deployable assembly |
| CN114914705A (en) * | 2022-07-14 | 2022-08-16 | 北京航天驭星科技有限公司 | Honeycomb tile type portable reflecting surface structure |
| US20230052062A1 (en) * | 2020-11-23 | 2023-02-16 | Xidian University | Reflective surface antenna based on triple telescopic rod drive and quasi-geodesic grid structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060181788A1 (en) * | 2003-09-10 | 2006-08-17 | Nippon Telegraph And Telephone Corporation | Expansion-type reflection mirror |
| CN101224793A (en) * | 2008-02-01 | 2008-07-23 | 西安电子科技大学 | Space extensible catopter device |
| CN101267062A (en) * | 2008-04-30 | 2008-09-17 | 西安电子科技大学 | Method for predicting antenna electric performance based on simulated distortion reflective side |
| CN101527384A (en) * | 2009-02-13 | 2009-09-09 | 中国电子科技集团公司第五十四研究所 | Manufacturing method of equilibrium stable space grid reflecting surface antenna back frame |
| CN102011922A (en) * | 2010-12-03 | 2011-04-13 | 西安电子科技大学 | Deployable surface device with fixed truss structure |
-
2015
- 2015-03-08 CN CN201510101476.9A patent/CN104682011B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060181788A1 (en) * | 2003-09-10 | 2006-08-17 | Nippon Telegraph And Telephone Corporation | Expansion-type reflection mirror |
| CN101224793A (en) * | 2008-02-01 | 2008-07-23 | 西安电子科技大学 | Space extensible catopter device |
| CN101267062A (en) * | 2008-04-30 | 2008-09-17 | 西安电子科技大学 | Method for predicting antenna electric performance based on simulated distortion reflective side |
| CN101527384A (en) * | 2009-02-13 | 2009-09-09 | 中国电子科技集团公司第五十四研究所 | Manufacturing method of equilibrium stable space grid reflecting surface antenna back frame |
| CN102011922A (en) * | 2010-12-03 | 2011-04-13 | 西安电子科技大学 | Deployable surface device with fixed truss structure |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159458A (en) * | 2016-06-03 | 2016-11-23 | 西安电子科技大学 | The ring frame column type rope net reflecting system that three expansion links drive |
| CN106159458B (en) * | 2016-06-03 | 2019-04-23 | 西安电子科技大学 | The ring frame column type rope net reflecting system of three telescopic rods driving |
| CN106200684A (en) * | 2016-07-04 | 2016-12-07 | 西安电子科技大学 | The annulated column type rope net reflex system that three expansion links drive |
| CN106054932B (en) * | 2016-07-04 | 2018-11-16 | 西安电子科技大学 | The annulated column type rope net reflecting system of single telescopic rod turntable driving |
| CN106200684B (en) * | 2016-07-04 | 2019-01-29 | 西安电子科技大学 | The annulated column type rope net reflecting system of three telescopic rods driving |
| CN106054932A (en) * | 2016-07-04 | 2016-10-26 | 西安电子科技大学 | Annular cylinder type cable net reflecting system driven by single telescopic rod turntable |
| CN106446385A (en) * | 2016-09-14 | 2017-02-22 | 西安电子科技大学 | Method for analyzing in-orbit vibration of cable-mesh reflector space-borne antenna |
| CN106446385B (en) * | 2016-09-14 | 2019-11-19 | 西安电子科技大学 | A kind of in-orbit vibration analysis method of cable mesh reflector satellite antenna |
| CN107293861A (en) * | 2017-06-16 | 2017-10-24 | 哈尔滨工业大学 | Based on the external winding rib Large Deployable reflecting surface of center deformation truss |
| CN109244678B (en) * | 2018-09-27 | 2023-10-17 | 中国科学院国家天文台 | Rope system foundation telescope reflecting surface structure |
| CN109244678A (en) * | 2018-09-27 | 2019-01-18 | 中国科学院国家天文台 | A kind of rope system basis telescope reflecting surface structure |
| CN109119741A (en) * | 2018-09-29 | 2019-01-01 | 中国科学院国家天文台 | A kind of complete movable huge radio telescope |
| CN110137659A (en) * | 2019-05-22 | 2019-08-16 | 南京吉凯微波技术有限公司 | A kind of the folding assembling-disassembling structure and mounting and dismounting method of vehicular heavy caliber radar antenna |
| CN110137659B (en) * | 2019-05-22 | 2023-07-18 | 南京吉凯微波技术有限公司 | Folding assembling and disassembling structure and method for vehicle-mounted large-caliber radar antenna |
| CN110581359A (en) * | 2019-09-23 | 2019-12-17 | 西安三石航天科技有限公司 | large-scale upset platform of transporting |
| CN114503361A (en) * | 2019-09-24 | 2022-05-13 | 空中客车防务及航天股份有限公司 | Antenna deployable assembly |
| CN114503361B (en) * | 2019-09-24 | 2024-06-04 | 空中客车防务及航天股份有限公司 | Antenna deployable assembly |
| US20230052062A1 (en) * | 2020-11-23 | 2023-02-16 | Xidian University | Reflective surface antenna based on triple telescopic rod drive and quasi-geodesic grid structure |
| US11764457B2 (en) * | 2020-11-23 | 2023-09-19 | Xidian University | Reflective surface antenna based on triple telescopic rod drive and quasi-geodesic grid structure |
| CN114914705A (en) * | 2022-07-14 | 2022-08-16 | 北京航天驭星科技有限公司 | Honeycomb tile type portable reflecting surface structure |
| CN114914705B (en) * | 2022-07-14 | 2022-09-27 | 北京航天驭星科技有限公司 | Honeycomb tile type portable reflecting surface structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104682011B (en) | 2017-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104682011A (en) | Ground reflector in cable network structure | |
| Nie et al. | Integrated form finding method for mesh reflector antennas considering the flexible truss and hinges | |
| CN104701630B (en) | Annulated column cable net structure varifocal reflecting surface device | |
| Sun et al. | Structural design, analysis, and experimental verification of an H-style deployable mechanism for large space-borne mesh antennas | |
| CN104518287B (en) | Varifocal reflection surface system based on ring rib post cable net structure | |
| CN105206941B (en) | A kind of sensing method of adjustment of the large-scale figuration dual reflector antenna based on mechanical-electric coupling | |
| CN106159458A (en) | The ring frame column type rope net reflecting system that three expansion links drive | |
| CN102337785A (en) | Construction process of ultra-large-span net-frame arch-shaped shed type storage silo | |
| CN205786919U (en) | Antenna house test device | |
| CN112436292B (en) | Reflecting surface antenna based on three-telescopic-rod driving and quasi-geodesic grid structure | |
| Jiang et al. | Optimization and analysis on cable net structure supporting the reflector of the large radio telescope FAST | |
| EP4007071A1 (en) | Uniformly-partitioned high-precision sub-reflector device with two-stage pose adjustment function | |
| CN103972661B (en) | A kind of parabolic-cylinder antenna device | |
| CN101635390B (en) | Final-assembly die with truss type spatial structure | |
| CN112523358A (en) | Bidirectional oblique crossing combined spoke type tension cable truss system and application | |
| CN106207484A (en) | The ring frame-type rope net reflex system that single expansion link turntable drives | |
| CN104932258B (en) | A kind of telescope reflecting surface mechanical model modification method | |
| CN110504519A (en) | A kind of architecture type expandable antenna reflector | |
| CN109870119A (en) | A kind of FAST Active Reflector surface precision method of real-time based on digital twins' technology | |
| CN106054932B (en) | The annulated column type rope net reflecting system of single telescopic rod turntable driving | |
| CN108375347A (en) | A kind of FAST radio telescopes reflecting surface unit accuracy measurement system and method | |
| CN108153969B (en) | Method for calculating double-center ellipse speed sliding roof system based on Kaiwait grid layout principle and construction method | |
| Li et al. | Structural design and integral assembly procedure of rigid-flexible tensegrity airship structure | |
| CN106200684A (en) | The annulated column type rope net reflex system that three expansion links drive | |
| Luo et al. | Static equilibrium form-finding analysis of cable-strut system based on nonlinear dynamic finite element method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |