CN102593576B - Method for preparing pre-tension membrane structure antenna - Google Patents
Method for preparing pre-tension membrane structure antenna Download PDFInfo
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- CN102593576B CN102593576B CN201210051753.6A CN201210051753A CN102593576B CN 102593576 B CN102593576 B CN 102593576B CN 201210051753 A CN201210051753 A CN 201210051753A CN 102593576 B CN102593576 B CN 102593576B
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Abstract
The invention relates to a method for preparing a pre-tension membrane structure antenna. The method comprises the following steps: designing a membrane surface into a base membrane and electric membranes, splicing the base membrane and forming the electric membranes; marking out a bottom membrane according to a designed paste range, pasting the electric membranes; processing catenaries, splicing auxiliary strengthening plates, positioning the membrane surface by utilizing installation holes of a support framework of the membrane antenna and placing the first membrane surface on a corresponding position of the support framework; reversely loading pretightening force on the long side of the membrane surface by utilizing auxiliary loaded ropes and the support of the support framework, pre-tensioning tension ropes by an adjustment device and adjusting the tension ropes to designed positions for splicing and fixing; and installing a dielectric Kevlar/Nomex honeycomb panel so as to finally realize an antenna array surface. In the method, a phased-array antenna array surface is realized through a membrane structure; the weight of a traditional phased-array antenna structure is lightened; and the method provided by the invention has the characteristics that the pre-tension membrane structure antenna is capable of being continuous loaded; the membrane tension can be accurately controlled, the operation is convenient, a special membrane tying tool is not needed, and the like.
Description
Technical field
The present invention relates to a kind of preparation method of pre-tension membrane structure antenna, a kind of approach that the method is shaped and realizes as Space Light film antenna front, belongs to space antenna technical field.
Background technology
According to the requirement of film antenna work, the profile precision of the profile required precision antenna submatrix of full battle array deployed condition is less than the root-mean-square value of design, each submatrix is comprised of three-layer thin-film, therefore require the flatness after three-layer thin-film moulding to reach the root-mean-square value of design, and require parallelism error and position error to be between layers also less than design load.Film, under the thermal environment of space work, because face material thermal expansion coefficient is larger, can cause the absent-mindedness of face tension force, so will make face have enough tension force during moulding, to guarantee not occur to be heated in-orbit relaxation.
External more typical a kind of air frames formula structural antenna at present, this antenna structure is mainly comprised of the extensible framework of inflation, film, rope support system, extensible frame structure is folded up when transmitting, after entering the orbit, be launched into operating state, this framework cannot adopt the mode of reverse loading that face is shaped, and the antenna that gas-filled type launches is at present at home without technical foundation.
The membrane structure antenna that external more typical another kind of rigid frame supports, this framework is to adopt a set of front precision adjustment System to adjust face, but the precision adjustment System adopting is comparatively complicated.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art, a kind of preparation method of pre-tension membrane structure antenna is provided, the method is by adopting membrane structure to realize phased array antenna front, alleviate the weight of traditional phased array antenna structure, have the advantages that to load continuously, accurate controlling diaphragm tension force, and have easy to operately, do not need the special use advantages such as film frock that stretch tight.
Above-mentioned purpose of the present invention is mainly achieved by following technical solution:
A preparation method for pre-tension membrane structure antenna, comprises film antenna face preparation method, the stretch-draw of film antenna face and installation method, and concrete steps are as follows:
Film antenna face preparation process is as follows:
Step (one), according to the electric film of the design scope of pasting, counterdie is rule, and paste electric film in corresponding position, at two relative fringe regions of counterdie, reserve auxiliary Membrane of Tensile Buildings, on auxiliary Membrane of Tensile Buildings, determine stretch-draw point position simultaneously;
Step (two), at two other relative fringe region of counterdie, form catenary border, on catenary border, determine stretch-draw point position;
Step (three), at the stretch-draw point place of auxiliary Membrane of Tensile Buildings, paste the first assistant reinforcement sheet, at the stretch-draw point place on catenary border, paste the second assistant reinforcement sheet, complete the preparation of ground floor face;
Repeating step (one)～step (three), completes the preparation of second layer face and trilamellar membrane face;
The stretch-draw of film antenna face and installation process are as follows:
Step (four), ground floor face be placed on support frame and positioned, on the first assistant reinforcement sheet position, fixing loading rope, on the second assistant reinforcement sheet position, fix tension force rope simultaneously;
Step (five), by governor motion, by every pair, load rope and be fixed up and add in advance tensile force, tension force rope is fixed on tension adjustment piece and pre-tightening tension rope simultaneously, thereby by face tensioning;
After step (six), the face position after tensioning meet the demands, come loose successively every pair and load rope, and after a pair of loading rope that often comes loose, near face described loading rope ends is bonded on support frame, again described loading rope is connected and fixed by governor motion, the rest may be inferred, until complete the bonding of whole loading rope ends faces, and position by the tension force of governor motion adjustment loading rope;
The tension force of step (seven), adjustment tension force rope, eliminates the local gauffer of the face causing while loading rope tension; Until final face, adjust to after design attitude, secured adjusted mechanism and tension adjustment piece are cured;
Step (eight), crop the auxiliary Membrane of Tensile Buildings of two fringe regions of counterdie, and medium Kevlar/Nomex cellular board is installed on ground floor face;
Repeating step (four)～step (eight), completes stretch-draw and the installation of second layer face;
Repeating step (four)～step (seven), completes stretch-draw and the installation of trilamellar membrane face.
In the preparation method of above-mentioned pre-tension membrane structure antenna, two fringe regions on the long limit of face reserve auxiliary Membrane of Tensile Buildings, and the first assistant reinforcement sheet is pasted at the stretch-draw point place on auxiliary Membrane of Tensile Buildings, two fringe regions of face minor face form catenary border, and paste the second assistant reinforcement sheet at the borderline stretch-draw point of catenary place.
In the preparation method of above-mentioned pre-tension membrane structure antenna, reinforcement processing is carried out to catenary border in the position that in step (two), the intersection point place on catenary border is stretch-draw point simultaneously, prevents that face breaks under pretension state.
In the preparation method of above-mentioned pre-tension membrane structure antenna, during every tunic face stretch-draw, the choosing method of the auxiliary Membrane of Tensile Buildings stretch-draw point number in long limit is: when cancelling arbitrarily one of them stretch-draw point, do not affect the flatness of face, object is after a glue, not change the adjustment result of face.
In the preparation method of above-mentioned pre-tension membrane structure antenna, in step (five), tension force rope is passed to the location hole on tension adjustment piece, and connect tension force rope with pretension screw, simultaneously pre-tightening tension rope.
In the preparation method of above-mentioned pre-tension membrane structure antenna, in step (four), the acute angle on support frame border is implemented to process, to guarantee that the not supported framework of auxiliary Membrane of Tensile Buildings pushes, break.
In the preparation method of above-mentioned pre-tension membrane structure antenna, in step (four), ground floor face is placed on support frame and is positioned, auxiliary Membrane of Tensile Buildings is walked around the frame of support frame, on reverse assistant reinforcement sheet position, fix loading rope, oppositely utilizing loading rope load and tighten.
In the preparation method of above-mentioned pre-tension membrane structure antenna, the support frame that ground floor face is installed is carbon fiber aluminum honeycomb panel.
The present invention compared with prior art has following beneficial effect:
(1) short side direction of trilamellar membrane of the present invention has designed multistage catenary system, by catenary adjusting device, regulates the tension force rope on film, smooth non-wrinkled to guarantee face; The long limit of trilamellar membrane is that the amount of stretch-draw can accurately be controlled by being bonded in after stretch-draw on the support frame frame of three layers of cellular boards formation again;
(2) to utilize continuous Kapton counterdie and piecemeal Kapton copper membrane (electric film) to carry out bonding in the present invention, forms large-sized microstrip array unit membrane, solved the size-constrained difficult problem of optics milling device;
(3) bottom frame of face of the present invention is carbon fiber aluminum honeycomb panel, it has enough rigidity to support whole film front system, top layer and middle layer frame are medium Kevlar/Nomex cellular board, can meet wave transparent requirement, by the thickness of slab size of accurate control Kevlar/Nomex cellular board, to guarantee the constant spacing requirement between trilamellar membrane face.
(4) stretch-draw of face of the present invention is by auxiliary Membrane of Tensile Buildings, to walk around the frame of support frame, oppositely utilizing auxiliary ropes loading to tighten, this method has the advantages that to load continuously, accurately controlling diaphragm tension force, and have easy to operately, do not need the special use advantages such as film frock that stretch tight;
(5) the present invention adopts membrane structure to realize phased array antenna front, has greatly alleviated the weight of traditional phased array antenna structure.
Accompanying drawing explanation
Fig. 1 is counterdie molding structure schematic diagram of the present invention;
Fig. 2 is that the present invention pastes electric membrane structure schematic diagram on counterdie;
Fig. 3 is film minor face tension ropes cable stretching schematic diagram of the present invention;
Fig. 4 is that the long limit stretch-draw of film of the present invention oppositely loads schematic diagram;
Fig. 5 is three-layer thin-film decomposing schematic representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
The present invention is designed to basement membrane and electric film by face, on workbench, basement membrane is spliced and electric film is formed and to counterdie line and in corresponding position, pastes electric film, processes catenary, the bonding film assistant reinforcement sheet etc. that stretches tight according to the stickup scope of design, by utilizing the installing hole on film antenna support frame to position face, the first tunic is placed into the relevant position of support frame simultaneously; The support that utilizes secondary load rope and support frame to the long limit of face oppositely load pretightning force, simultaneously by conditioning equipment pre-tightening tension rope, and adjust to design attitude position, be adhesively fixed; Medium Kevlar/Nomex cellular board is installed, is finally realized antenna array.Specifically comprise film antenna face preparation method, the stretch-draw of film antenna face and installation method.
Concrete steps are as follows:
Step (one): be illustrated in figure 1 counterdie molding structure schematic diagram of the present invention, counterdie 1 is spliced, according to the size of film front and required auxiliary Membrane of Tensile Buildings 4 sizes, counterdie 1 spliced.According to the electric film of the design scope of pasting, counterdie 1 is rule again.
Step (two): determine the relevant position that electric film 2 is bonding and make a mark on counterdie 1.
Step (three): paste electric film 2, concrete grammar is: first the mode by absorption is preset at bonding region by electric film 2, the line position adjustment of going forward side by side, after positional precision reaches requirement, raise the local location of electric film 2 and smear bonding agent, and the thickness of determining glue-line by the method for colorimetric to be to guarantee that bondline thickness does not exceed standard, bonding electric film 2 keeping certain curing time then.Be illustrated in figure 2 the present invention and on counterdie, paste electric membrane structure schematic diagram.
Near step (four): according to the result of calculation of face, crop stretch-draw point the stretch-draw to face and contribute little region on minor face, form catenary border 3, carry out reinforcement processing then to catenary border 3, prevent that face breaks under pretension state.
Step (five): on the auxiliary Membrane of Tensile Buildings 4 of 1 two long edge positions of counterdie, determine the position of stretch-draw point, and in stretch-draw point position bonding assistant reinforcement sheet 5; On the catenary border 3 at 1 two minor face places of counterdie, determine the position of stretch-draw point, the position that the intersection point place on catenary border 3 is stretch-draw point, and in stretch-draw point position bonding assistant reinforcement sheet 5 ', complete the preparation of ground floor face.Be illustrated in figure 3 film minor face tension ropes cable stretching schematic diagram of the present invention.
Repeating step (one), to step (five), completes the preparation of second layer face and trilamellar membrane face;
Step (six): face is just located, ground floor face is placed on support frame 8, aim at witness marker, auxiliary Membrane of Tensile Buildings 4 is walked around the frame of support frame 8, fixes and load rope 6 on reverse assistant reinforcement sheet 5 positions, is oppositely utilizing loading rope 6 load and tighten.By governor motion 9, by every pair, loading rope 6 is fixed up and adds in advance tensile force.Be illustrated in figure 4 the long limit stretch-draw of film of the present invention and oppositely load schematic diagram.
Step (seven): on the second assistant reinforcement sheet 5 ' position, fix tension force rope 7, the location hole that tension force rope 7 is passed on tension adjustment piece 10, and connect tension force rope 7 with pretension screw, while pre-tightening tension rope 7, as shown in Figure 3.Thereby by the tensioning of ground floor film face.
Step (eight): after the face position after tensioning meets the demands, by governor motion 9, come loose every pair and load rope 6 successively, and after a pair of loading rope 6 that often comes loose, by this to loading near position region and thickness coating adhesive on request rope 6 two ends, to require region face to be bonded on support frame 8, by governor motion 9, connect this to loading rope 6 more afterwards, this is fixing to loading rope 6, the rest may be inferred, until complete the bonding of whole loading rope 6 two ends faces.
Wherein can come loose from left to right every pair and load rope 6, also can come loose from right to left every pair and load rope 6, complete bonding.
Step (nine), by governor motion 9 adjustment, load the tension force of ropes 6, near the witness marker making is aimed at, and completes location.
Step (ten): adjust the tension force of tension force rope 7, eliminate the local gauffer causing while loading rope 6 tensioning.
Step (11): repeating step (nine) and step (ten), until final face, adjust to after design attitude, the pretension screw of secured adjusted mechanism 9 and tension force rope 7, and keep certain curing time;
Step (12): crop the auxiliary Membrane of Tensile Buildings 4 of 1 two fringe regions of counterdie, medium Kevlar/Nomex cellular board is installed on ground floor face.
Repeating step (six)～step (12), completes stretch-draw and the installation of second layer face, and repeating step (six)～step (11), completes stretch-draw and the installation of trilamellar membrane face, finally realizes antenna array.Be illustrated in figure 5 three-layer thin-film decomposing schematic representation of the present invention, between ground floor face and second layer face, medium Kevlar/Nomex cellular board 11 has been installed between second layer face and trilamellar membrane face, the support frame 8 of antenna array bottom is carbon fiber aluminum honeycomb panel, it has enough rigidity to support whole film front system, and top layer and middle layer frame are medium Kevlar/Nomex cellular board 11.
The whole antenna of the present invention divide three-layer thin-film, stretching process by the order of first, second, third layer realize, the stretch-draw of every tunic is bonding after for long limit stretch-draw, minor face is fixing after by tension ropes cable stretching.During every layer film stretch-draw, long limit is reserved with auxiliary tension film, so that reverse loading to be provided, after having loaded, cut auxiliary tension film.
During every layer film stretch-draw, the choosing method of long limit stretch-draw point number is: when cancelling arbitrarily one of them stretch-draw point, do not affect the flatness of face, object is after a glue, not change the adjustment result of face.
In addition the acute angle on support frame 8 borders is implemented to process, to guarantee that the not supported framework 8 of auxiliary Membrane of Tensile Buildings 4 pushes, break.
The above; only be the embodiment of the best of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
The content not being described in detail in specification of the present invention belongs to professional and technical personnel in the field's known technology.
Claims (8)
1. a preparation method for pre-tension membrane structure antenna, is characterized in that comprising film antenna face preparation method, the stretch-draw of film antenna face and installation method, and concrete steps are as follows:
Film antenna face preparation process is as follows:
Step (one), according to the electric film of the design scope of pasting, counterdie (1) is rule, and paste electric film (2) in corresponding position, at (1) two relative fringe region of counterdie, reserve auxiliary Membrane of Tensile Buildings (4), in the upper definite stretch-draw point of auxiliary Membrane of Tensile Buildings (4) position simultaneously;
Step (two), at two other relative fringe region of counterdie (1), form catenary border (3), determine stretch-draw point position catenary border (3) are upper;
Step (three), at the stretch-draw point place of auxiliary Membrane of Tensile Buildings (4), paste the first assistant reinforcement sheet (5), at the stretch-draw point place of catenary border (3), paste the second assistant reinforcement sheet (5 '), complete the preparation of ground floor face;
Repeating step (one)～step (three), completes the preparation of second layer face and trilamellar membrane face;
The stretch-draw of film antenna face and installation process are as follows:
Step (four), ground floor face is placed into support frame (8) goes up and position, on the first assistant reinforcement sheet (5) position, fix and load rope (6), on the second assistant reinforcement sheet (5 ') position, fix tension force rope (7) simultaneously;
Step (five), governor motion (9) are arranged between a pair of loading rope (6) on same straight line, by governor motion (9), by described every pair, loading rope (6) is fixed up and adds in advance tensile force, tension force rope (7) is fixed on to the upper also pre-tightening tension rope (7) of tension adjustment piece (10) simultaneously, thereby by face tensioning;
After step (six), the face position after tensioning meet the demands, come loose successively every pair and load rope (6), and after a pair of loading rope (6) that often comes loose, near face described loading rope (6) two ends is bonded on support frame (8) by bonding agent, again described loading rope (6) is connected and fixed by governor motion (9), the rest may be inferred, until complete the bonding of whole loading ropes (6) two ends face, and position by the tension force of governor motion (9) adjustment loading rope (6);
The tension force of step (seven), adjustment tension force rope (7), eliminates the local gauffer of the face causing while loading rope (6) tensioning; Until final face, adjust to after design attitude, secured adjusted mechanism (9) and tension adjustment piece (10), solidify bonding agent;
Step (eight), crop the auxiliary Membrane of Tensile Buildings (4) of (1) two fringe region of counterdie, and medium Kevlar/Nomex cellular board (11) is installed on ground floor face;
Repeating step (four)～step (eight), completes stretch-draw and the installation of second layer face;
Repeating step (four)～step (seven), completes stretch-draw and the installation of trilamellar membrane face.
2. the preparation method of a kind of pre-tension membrane structure antenna according to claim 1, it is characterized in that: two fringe regions on the long limit of described face reserve auxiliary Membrane of Tensile Buildings (4), and the first assistant reinforcement sheet (5) is pasted at the stretch-draw point place on auxiliary Membrane of Tensile Buildings (4), two fringe regions of face minor face form catenary border (3), and the second assistant reinforcement sheet (5 ') is pasted at the stretch-draw point place on catenary border (3).
3. the preparation method of a kind of pre-tension membrane structure antenna according to claim 1, it is characterized in that: the position that in described step (two), the intersection point place on catenary border (3) is stretch-draw point, reinforcement processing is carried out in catenary border simultaneously, prevent that face breaks under pretension state.
4. the preparation method of a kind of pre-tension membrane structure antenna according to claim 1, it is characterized in that: during described every tunic face stretch-draw, the choosing method of auxiliary Membrane of Tensile Buildings (4) the stretch-draw point number in long limit is: when cancelling arbitrarily one of them stretch-draw point, do not affect the flatness of face, object is after a glue, not change the adjustment result of face.
5. the preparation method of a kind of pre-tension membrane structure antenna according to claim 1, it is characterized in that: in described step (five), tension force rope (7) is passed to the location hole on tension adjustment piece (10), and with pretension screw, connect tension force rope (7), while pre-tightening tension rope (7).
6. the preparation method of a kind of pre-tension membrane structure antenna according to claim 1, it is characterized in that: in described step (four), the acute angle on support frame (8) border is implemented to process, to guarantee that the auxiliary not supported framework of Membrane of Tensile Buildings (4) (8) pushes, break.
7. the preparation method of a kind of pre-tension membrane structure antenna according to claim 1, it is characterized in that: in described step (four), ground floor face is placed into support frame (8) and goes up and position, auxiliary Membrane of Tensile Buildings (4) is walked around the frame of support frame (8), on reverse assistant reinforcement sheet (5) position, fix and load rope (6), oppositely utilizing loading rope (6) load and tighten.
8. the preparation method of a kind of pre-tension membrane structure antenna according to claim 1, is characterized in that: the support frame (8) of described installation ground floor face is carbon fiber aluminum honeycomb panel.
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| EP3677521A1 (en) * | 2019-01-04 | 2020-07-08 | Rohr, Inc. | Stretching and deployment of a sensor network for large structure monitoring |
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| CN106096080B (en) * | 2016-05-27 | 2019-04-05 | 中国人民解放军国防科学技术大学 | A kind of membrane structure and its formed surface control method |
| CN107257031B (en) * | 2017-07-21 | 2020-10-16 | 中国电子科技集团公司第二十九研究所 | High-power metal polarizer with gradient polarization angle |
| CN108649347B (en) * | 2018-03-15 | 2023-07-25 | 浙江大学 | Light cable membrane microstrip phased array antenna structure |
| CN110540012A (en) * | 2019-07-17 | 2019-12-06 | 蓝思智能机器人(长沙)有限公司 | Remote isolation transmission material transfer equipment |
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Application publication date: 20120718 Assignee: SHANGHAI YUESHENG INFORMATION TECHNOLOGY CO., LTD. Assignor: China Academy of Space Technology (Xi'an) Contract record no.: 2015310000001 Denomination of invention: Method for preparing pre-tension membrane structure antenna Granted publication date: 20140402 License type: Exclusive License Record date: 20150104 |
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