CN102605861B - Deployable cable pole dome structure - Google Patents
Deployable cable pole dome structure Download PDFInfo
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- CN102605861B CN102605861B CN201210060142.8A CN201210060142A CN102605861B CN 102605861 B CN102605861 B CN 102605861B CN 201210060142 A CN201210060142 A CN 201210060142A CN 102605861 B CN102605861 B CN 102605861B
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- cable
- notochord
- dome structure
- scissors unit
- strut
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Abstract
The invention discloses a deployable cable pole dome structure, comprising an inner cable pole body and an external single-freedom-degree annular connecting bar mechanism, wherein the single-free degree annular connecting bar mechanism comprises at least four shearing type units, a passive cable and an active cable. The invention uses the single-freedom-degree annular connecting bar mechanism to drive the dome structure to fold and unfold, thus number of driving devices is reduced; the active cable and the passive cable are arranged in the external annular connecting bar mechanism, and the prestressing force exists at a full extension state, so that the rigidity of the structure is increased and the material does is reduced; only the active cable needs to be fixed at a full extension state, and an additional locking device is not needed; a coverage range of the dome structure is provided by the inner cable pole body, thus, the external load of the structure is mainly born by the inner cable pole body; the inner cable pole body is composed of a high-strength inhaul cable and a pressure bar; the self weight is light; and the rigidity is mainly provided by the prestressing force, and the stress performance is excellent.
Description
Technical field
The present invention relates to a kind of dome structure, especially one can be opened up rope bar dome structure.
Background technology
Deployable structure is a kind of new structure closely growing up for more than half a century, in fields such as aerospace, building structure and military engineerings, plays an important role.The principal character of deployable structure is to have two kinds of stable configurations: folded state and the state of organizing work completely completely.When folded state, structure is drawn at a certain given shape, and under the effect of extraneous driving force, structure is progressively launched, and reaches the duty of launching completely, is then locked as stable state.
Cable-rod structure system is comprised of high strength rope and depression bar, and its quality is less, and storage rate is larger, and the node that rope bar connects is relatively simple.The basic characteristics of system are that its a part of rigidity is provided by prestressing force, can save a large amount of materials; Because its stress state is constant, it is also the system that a kind of structure efficiency is very high in addition.And present stage large quantity research to have the applied cable-rod structure of opening up be rod-cable deployable mast structure, its main bearing member is truss element, add be connected on node by dynamic search and along selected route on truss element the active rope through numerous pulleys.In addition, also have scholar to propose the multiple cable-rod structure of opening up, but it uses the span of structure less, and its rigidity a little less than.
Summary of the invention
In order to overcome existing defect of opening up dome structure technology, the invention provides one and can open up rope bar dome structure.
In order to achieve the above object, the present invention has adopted following technical scheme:
One can be opened up rope bar dome structure, comprise cable-strut system, this cable-strut system comprises the vertical depression bar in center, notochord, strop, radial cable, also comprise single-degree-of-freedom annular linkage, this single-degree-of-freedom annular linkage comprises at least 4 scissors unit, by dynamic search and active rope, this scissors unit, by two rod members equal in length, by a post hinge, be connected, and post hinge is positioned at the middle part of rod member, pin-connected joints in the middle of forming, every rod member only can relatively rotate with the axis of two rod member place planes around vertical, scissors unit joins end to end by node on its rod member and rod member lower node, form an annular linkage, intermediolateral column hinged joint by dynamic search through all scissors unit, and form an annular, initiatively rope connects upper node and the lower node of scissors unit, in outmost turns radial cable and annular linkage, the middle pin-connected joints of scissors unit is hinged, and one end of notochord is connected with the upper end of the vertical depression bar in center, and in the other end of notochord and annular linkage, the middle pin-connected joints of scissors unit is hinged.
The described rope bar dome structure of opening up, also comprises strut, and described notochord is radial to arc lower, by multistage drag-line, is connected and is formed, and the upper end of strut and the turning point of notochord are hinged, and the lower end of strut and one end of radial cable and strop are hinged.
The described rope bar dome structure of opening up, the quantity of notochord is no less than 4 and be not more than 800.
The described rope bar dome structure of opening up, described notochord, strop, radial cable is that prestressed cable is prestressed cable.
The described rope bar dome structure of opening up, the vertical depression bar in center and strut described in are metal rod or metal tube.
The described rope bar dome structure of opening up, is characterized in that: in described single-degree-of-freedom annular linkage, the rod member of scissors unit is metal tube.
The invention has the beneficial effects as follows, because the present invention utilizes single-degree-of-freedom annular linkage, drive the unfolded of dome structure, reduced the quantity of drive unit; Active rope is set in the annular linkage in outside and by dynamic search, makes it when complete deployed condition, have prestressing force, improved the rigidity of structure, reduced material usage, and only need to fix initiatively rope in complete deployed condition, do not need extra locking device; The coverage of dome structure is mainly provided by inner cable-strut system, so the external load of structure is also mainly born by inner cable-strut system, inner cable-strut system is comprised of high strength drag-line and depression bar, and it is from heavy and light, and its rigidity mainly provides by prestressing force, stress performance is very superior; In addition, the number of components of this structure, much smaller than general network, is therefore given the effect of a kind of brevity and lucidity of people, has overcome the various in disorder shortcoming of conventional foldable structure sense organ upper lever; And its design and construction simple, be particularly suitable for thering is the dome structure that large span requires.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described in more detail:
Fig. 1 is that the present invention can open up rope bar dome structure schematic diagram;
Fig. 2 is single-degree-of-freedom annular linkage schematic diagram;
Fig. 3 is scissors cell schematics;
Fig. 4 is inner cable-strut system schematic diagram;
Fig. 5 is single-degree-of-freedom annular connecting rod mechanism movement process schematic diagram.
In figure: 1, node on rod member; 2, rod member lower node; 3, middle pin-connected joints; 4, by dynamic search; 5, initiatively rope; The 6 vertical depression bars in center; 7, notochord; 8, strop; 9, strut; 10, radial cable.
The specific embodiment
One can be opened up rope bar dome structure, as shown in Figure 1, comprise: inner cable-strut system and outside single-degree-of-freedom annular linkage, as shown in Figure 2, described single-degree-of-freedom annular linkage is comprised of n scissors unit (4≤n≤800) and drag-line, n scissors unit joins end to end by node 1 on its rod member and rod member lower node 2, form an annular linkage, middle pin-connected joints 3 by dynamic search 4 through all scissors unit, and form an annular, initiatively rope 5 connects node 1 and rod member lower node 2 on the rod member of scissors unit.Described scissors unit, as shown in Figure 3, by two rod members equal in length, by a post hinge, be connected, and post hinge is positioned at the middle part of rod member, every rod member only can relatively rotate with the axis of two rod member place planes around vertical, and other degree of freedom is restricted completely.
Described inside cable-strut system, as shown in Figure 4, by the vertical depression bar 6 in center, notochord 7, strop 8, strut 9, radial cable 10 forms, the upper end of the vertical depression bar 6 in center is connected with one end of n chorda 7, in the other end of notochord 7 and annular linkage, the middle pin-connected joints 3 of scissors unit is hinged, notochord 7 is radial to arc lower, by multistage drag-line, be connected and form, the turning point of the upper end of strut 9 and notochord 7 is hinged, one end of the lower end of strut 9 and radial cable 10 and strop 8 are hinged, the lower end of the vertical depression bar 6 in one end of radial cable and center is hinged, the turning point of the other end of radial cable and notochord 7 is hinged, in outmost turns radial cable and annular linkage, the middle pin-connected joints 3 of scissors unit is hinged, strop 8 is along hoop closed arrangement.
Outside single-degree-of-freedom annular linkage launches mechanism and is: when folded state, and initiatively rope 5 and all being relaxed by dynamic search 4.And initiatively the length of rope 5 can change, along with the shortening of active rope 5 length, system is progressively being launched; In expansion process, initiatively rope 5 is strained, and still relaxed by dynamic search 4.When being deployed into assigned address, by dynamic search 4, be tensioned, mechanism becomes structure.Continue stretch-draw by dynamic search 4, structure has prestressing force when complete deployed condition, thereby has improved the rigidity of total, Figure 5 shows that the annular linkage in motion process.
The expansion mechanism that can open up rope bar dome structure is: by the expansion of outside single-degree-of-freedom annular linkage, drive is articulated with the outward radial motion of the notochord 7 on pin-connected joints 3 and radial cable 10 nodes in the middle of scissors unit, along with the continuous expansion of annular linkage, the coverage of inner cable-strut system constantly expands, until annular connecting rod mechanism movement is to assigned address, in inner cable-strut system, produce prestressing force, by mechanism, just turned to structure, thereby completed the expansion of total.
Claims (5)
1. can open up rope bar dome structure for one kind, comprise cable-strut system, this cable-strut system comprises the vertical depression bar in center, notochord, strop, radial cable, it is characterized in that: also comprise single-degree-of-freedom annular linkage, this single-degree-of-freedom annular linkage comprises at least 4 scissors unit, by dynamic search and active rope, this scissors unit, by two rod members equal in length, by a post hinge, be connected, and post hinge is positioned at the middle part of rod member, pin-connected joints in the middle of forming, every rod member only can relatively rotate with the axis of two rod member place planes around vertical, scissors unit joins end to end by node on its rod member and rod member lower node, form an annular linkage, intermediolateral column hinged joint by dynamic search through all scissors unit, and form an annular, initiatively rope connects upper node and the lower node of scissors unit, in outmost turns radial cable and annular linkage, the middle pin-connected joints of scissors unit is hinged, and one end of notochord is connected with the upper end of the vertical depression bar in center, and in the other end of notochord and annular linkage, the middle pin-connected joints of scissors unit is hinged, also comprise strut, described notochord is radial to arc lower, by multistage drag-line, is connected and is formed, and the upper end of strut and the turning point of notochord are hinged, and the lower end of strut and one end of radial cable and strop are hinged.
2. can open up as claimed in claim 1 rope bar dome structure, it is characterized in that: the quantity of notochord is no less than 4 and be not more than 800.
3. can open up as claimed in claim 2 rope bar dome structure, it is characterized in that: described notochord, strop, radial cable are prestressed cable.
4. can open up as claimed in claim 3 rope bar dome structure, it is characterized in that: the vertical depression bar in described center and strut are metal rod or metal tube.
5. can open up as claimed in claim 4 rope bar dome structure, it is characterized in that: in described single-degree-of-freedom annular linkage, the rod member of scissors unit is metal tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210060142.8A CN102605861B (en) | 2012-03-08 | 2012-03-08 | Deployable cable pole dome structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210060142.8A CN102605861B (en) | 2012-03-08 | 2012-03-08 | Deployable cable pole dome structure |
Publications (2)
| Publication Number | Publication Date |
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| CN102605861A CN102605861A (en) | 2012-07-25 |
| CN102605861B true CN102605861B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210060142.8A Expired - Fee Related CN102605861B (en) | 2012-03-08 | 2012-03-08 | Deployable cable pole dome structure |
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| CN104818885B (en) * | 2015-03-12 | 2017-04-26 | 浙江大学 | Unfoldable dome structure of tension spring-driven shear hinge |
| CN104947838B (en) * | 2015-06-11 | 2017-04-26 | 上海海事大学 | Method for finding feasible prestress of cable-pole structure |
| EP3336408B1 (en) * | 2015-08-14 | 2019-10-23 | Japan Science and Technology Agency | Foldable structure, foldable structure manufacturing method, foldable structure manufacturing device, and program |
| CN105297902B (en) * | 2015-10-23 | 2018-09-21 | 东南大学 | A kind of foldable cable-rod structure unit based on hexagon geometry |
| CN105804247B (en) * | 2016-04-01 | 2017-12-29 | 北京工业大学 | A kind of ridge burr supports cable dome structure |
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| CN106284810B (en) * | 2016-09-19 | 2018-08-21 | 东南大学 | Planar radial folding house roof-film composite structure |
| CN106245778B (en) * | 2016-09-19 | 2018-06-05 | 东南大学 | Radial expansion latticed shell structure |
| CN106320586B (en) * | 2016-09-19 | 2018-05-18 | 东南大学 | Plane retractable Roof Structures |
| CN106284808B (en) * | 2016-09-19 | 2018-05-04 | 东南大学 | Planar radial retractable Roof Structures |
| CN106284809B (en) * | 2016-09-19 | 2018-10-26 | 东南大学 | A kind of plane folding house roof-film composite structure |
| CN106284673B (en) * | 2016-09-19 | 2018-10-26 | 东南大学 | Radial double-deck flexible rack-film composite structure |
| CN106337499B (en) * | 2016-09-19 | 2018-07-27 | 东南大学 | The radial double-deck flexible grid structure |
| CN106400967B (en) * | 2016-09-19 | 2018-05-04 | 东南大学 | Radial telescopic net structure |
| CN106284807B (en) * | 2016-09-19 | 2018-11-27 | 东南大学 | Radially retractable roof structure |
| CN106759917B (en) * | 2016-11-15 | 2018-05-25 | 东南大学 | A kind of planar radial retractable Roof Structures with trapezoidal rigid roofing structural unit |
| CN106703206B (en) * | 2016-11-15 | 2019-03-01 | 东南大学 | A kind of deployable structure with trapezoidal rigid panel unit |
| CN106759918B (en) * | 2016-11-15 | 2019-02-05 | 东南大学 | A kind of deployable structure with rigid panel |
| CN106639110B (en) * | 2016-11-15 | 2018-05-25 | 东南大学 | A kind of planar radial retractable Roof Structures with rigid roofing plate |
| CN113027028B (en) * | 2021-02-03 | 2022-03-22 | 浙江大学 | Rib-ring-shaped foldable expansion cable dome structure |
| CN114856068B (en) * | 2022-04-11 | 2023-02-03 | 浙江大学 | Cable dome structure adopting continuous ridge cables |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005111343A1 (en) * | 2004-05-13 | 2005-11-24 | National University Of Singapore | Deployable structure |
| CN100593607C (en) * | 2007-04-19 | 2010-03-10 | 浙江大学 | Bird-nest type rope dome structure with load alleviating function |
| CN101260705A (en) * | 2008-04-11 | 2008-09-10 | 晟元集团有限公司 | Sunflower-type cable dome system possessing mitigation function |
| CN101864806B (en) * | 2010-06-04 | 2011-07-20 | 北京工业大学 | Stiffness-supported dome structure |
| CN202073178U (en) * | 2011-05-03 | 2011-12-14 | 东南大学 | Cable dome structure with a secondary cable net |
| CN202611068U (en) * | 2012-03-08 | 2012-12-19 | 东南大学 | Dome structure of deployable cable pole |
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- 2012-03-08 CN CN201210060142.8A patent/CN102605861B/en not_active Expired - Fee Related
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| CN102605861A (en) | 2012-07-25 |
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Application publication date: 20120725 Assignee: ARCHITECTS & ENGINEERS CO., LTD. OF SOUTHEAST University Assignor: SOUTHEAST University Contract record no.: X2020980010304 Denomination of invention: Deployable cable strut dome structure Granted publication date: 20140416 License type: Common License Record date: 20201230 |
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Granted publication date: 20140416 Termination date: 20210308 |
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