CN110254728A - It is a kind of based on the variable folding wall surface resistance adjustment structure containing through hole - Google Patents
It is a kind of based on the variable folding wall surface resistance adjustment structure containing through hole Download PDFInfo
- Publication number
- CN110254728A CN110254728A CN201910566378.0A CN201910566378A CN110254728A CN 110254728 A CN110254728 A CN 110254728A CN 201910566378 A CN201910566378 A CN 201910566378A CN 110254728 A CN110254728 A CN 110254728A
- Authority
- CN
- China
- Prior art keywords
- wall surface
- resistance
- hole
- folding
- folded
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D17/00—Parachutes
- B64D17/02—Canopy arrangement or construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
Abstract
It is a kind of based on the variable folding wall surface resistance adjustment structure containing through hole, belong to modern space structure form Design field.Wall surface array is folded to be folded into multiple folding units and can be unfolded automatically, each fold unit is rectangular patch and successively carries out secondary symmetrical fold by boundary of two center lines, unit will be folded and be divided into four small rectangular sheets by matrix pattern, the folding line folded between the small rectangular sheet of each adjacent two of wall surface is hinged by plasticity, each small rectangular sheet central excavation has resistance regulation hole, increases resistance or drag reduction by the aperture size control of resistance regulation hole.Folding wall surface can be unfolded automatically, can change its performance for increasing resistance or drag reduction by the setting of different size of resistance regulation hole, have realistic meaning to the resistance regulation of foldable structure.
Description
Technical field
It is especially a kind of based on the variable folded wall containing through hole the invention belongs to modern space structure form Design field
Face resistance adjustment structure.
Background technique
Foldable structure is new space structures form developed in recent years, and folding structure is in aerospace in recent years
In engineering and architectural design using more and more extensive.The space ductile of foldable structure makes structure when need to use, can
To be expanded to working condition, it may be withdrawn into folded state after hours and be readily transported.Foldable structure because of its in-site installation and
Dismounting speed is fast, and not needing many manpowers and machinery when in use can easily be unfolded to shape at the scene, thus is applicable in model
It encloses very extensively, is gradually applied in numerous areas such as military affairs, medicine, civil engineering, aerospace engineering.
Folding unit has shape variability, and in deployment lifting process, different states has different rigidity, at this time
It is also different to the increasing resistance reducing performance of distinguished and admirable, hot-fluid etc..Excavating hole in the suitable position of foldable structure can be realized increase and decrease resistance, from
And resistance is adjusted, increasing resistance can be realized by excavating small hole, be had to parachute, retarder, slow drop, stagnant sky etc. important
Meaning, drag reduction can be realized by excavating larger hole, significant to rocket head, dirigible, wing etc..However, variable at present
Folding lacks the design experiences of the increasing property of reduction drag of the foldable structure containing hole.
Summary of the invention
The purpose of the present invention is to provide a kind of based on the variable folding wall surface resistance adjustment structure containing through hole, to solve
The above problem.
To achieve the above object, the present invention takes following technical proposals: a kind of based on the variable folding wall surface containing through hole
Resistance adjustment structure, including wall surface is folded, the folding wall surface array is folded into multiple folding units and can be unfolded automatically,
Each folding unit is rectangular patch and successively carries out secondary symmetrical fold by boundary of two center lines, will fold unit and presses
Matrix pattern is divided into four small rectangular sheets, and the folding line folded between small rectangular sheet described in each adjacent two of wall surface passes through plastic hinge
Connection, each small rectangular sheet central excavation have resistance regulation hole, are controlled and are increased by the aperture size of the resistance regulation hole
Resistance or drag reduction.
Compared with prior art, the beneficial effects of the present invention are: folding wall surface of the invention can be unfolded automatically, lead to
The setting for crossing different size of resistance regulation hole can change its performance for increasing resistance or drag reduction, to the resistance regulation of foldable structure
With realistic meaning.
Detailed description of the invention
Fig. 1 is that the unit that folds of the invention excavates the schematic diagram before resistance regulation hole；
Fig. 2 is that the unit that folds of the invention excavates the schematic diagram after resistance regulation hole；
Fig. 3 is the expansion initial stage schematic diagram of folding unit of the invention, and wherein resistance regulation hole does not indicate；
Fig. 4 is the expansion mid-term schematic diagram of folding unit of the invention, and wherein resistance regulation hole does not indicate；
Fig. 5 is the expansion later period schematic diagram of folding unit of the invention, and wherein resistance regulation hole does not indicate；
Fig. 6 is the schematic diagram one of folding wall surface of the invention under wind load effect, folds wall surface and contains 4 folding units, resistance
Power adjusts hole control and increases resistance；
Fig. 7 is the schematic diagram two of folding wall surface of the invention under wind load effect, folds wall surface and contains 3 folding units, resistance
Power adjusts hole and controls drag reduction；
Fig. 8 is schematic diagram of the present invention when parachute is applied；
Fig. 9 is schematic diagram of the present invention when rocket head is applied.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in the present invention
It states, it is clear that described embodiment is only a part of the embodiment of invention, instead of all the embodiments, based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
It shall fall within the protection scope of the present invention.
Specific embodiment 1: the invention discloses a kind of based on the variable folding containing through hole as shown in FIG. 1 to FIG. 7
Wall surface resistance adjustment structure, including wall surface is folded, the folding wall surface array is folded into multiple folding units 1 and can carry out automatically
Expansion, each folding unit 1 is rectangular patch and successively carries out secondary symmetrical fold by boundary of two center lines, will fold
Unit 1 is divided into four small rectangular sheet 2 by matrix pattern, folds the folding line between small rectangular sheet 2 described in each adjacent two of wall surface
It is hinged by plasticity, each small 2 central excavation of rectangular sheet has resistance regulation hole 3, passes through opening for the resistance regulation hole 3
Size control in hole increases resistance or drag reduction.
Specific embodiment 2: present embodiment is the further explanation made to specific embodiment one, the folding
Wall surface uses shape memory high molecule polymer material, at which in unfolded state and in the glass transition temperature for being lower than the material
In the case where degree (material modulus is long-term relaxation modulus at this time, relatively small, such as 0.0146MPa), carries under driving and carry out outside
It folds, generates bending deformation and moulded (material modulus is transient slack modulus at this time, relatively large, such as 14.6MPa), shape
(material modulus is transient slack modulus at this time, relatively large, such as 14.6MPa) is not unloaded after the completion of moulding, and structure is dropped
Temperature is cooled to lower than after its material glass transition temperature, and the shape moulded is able to fixed then unloading external force, shape and has fixed
Finish, be warming up to again higher than its glass transition temperature (at this time material modulus be long-term relaxation modulus, it is relatively small, such as
Wall surface release prestressing force is folded when 0.0146MPa) to be gradually unfolded automatically, and original state is returned back to.
Specific embodiment 3: present embodiment is the further explanation made to specific embodiment two, the folding
Temperature controller is installed on wall surface, by temperature controller to fold wall surface carry out temperature regulation, thus control its automatically into
Row expansion.
Specific embodiment 4: present embodiment is the further explanation made to specific embodiment one, the folding
Wall surface uses deformable composite laminated plate, and internal layer is pure elastomer, and outer layer uses shape memory long fiber reinforcement,
Shape memory long fibre is elongated after shape memory programs, and folds wall surface and folded bent occurs, and folds wall surface using a kind of
The novel deformable bistable composite laminated plate of electric drive, by the way that metal electric heating membrane is added in cross-ply laminate to layer
Plywood regional area is heated, and driving bistable laminate jumps, deformable bistable laminate energy under electric drive
It is enough to be automatically transformed into another configuration from a kind of configuration, realize the control to folding and expanding.
Specific embodiment 5: as shown in Fig. 2, present embodiment is to specific embodiment two or specific embodiment four
The further explanation made, the perforated area ratio of the resistance regulation hole 3 fold wall surface when being greater than 0.0004 less than 0.1296
To increase resistance, the perforated area ratio of resistance regulation hole 3 folds wall surface when being greater than 0.1296 less than 0.8100 be drag reduction.
Shown in referring to Fig.1~7, resistance can also be excavated according to the actual needs of engineering folding 1 surface of unit by folding wall surface
Hole 3 is adjusted, and actual measurement is carried out to find out the optimal apex angle size, side length and the resistance tune that fold unit 1 by wind load 4
Size, position, the shape in knothole hole 3 are manufactured after meet demand, are applied in engineering.Referring to shown in Fig. 8,
The present invention is carried out in parachute 5 in application, using wall surface is folded as the umbrella cover of parachute 5, the aperture face of resistance regulation hole 3
Parachute 5 is realized when product is than being greater than 0.0004 less than 0.1296 and increases resistance, referring to shown in Fig. 9, the present invention is answered in rocket head 6
Used time, using wall surface is folded as the covering of rocket head 6, the perforated area ratio of resistance regulation hole 3 is greater than 0.1296 and is less than
Drag reduction is realized to rocket head 6 when 0.8100.
When the perforated area of resistance regulation hole 3 ratio is greater than 0.0004 less than 0.1296, hole is relatively small, in hole
Neighbouring rear side produces biggish wind suction, coefficient of wind pres is caused to increase, so that resistance increases.When resistance regulation hole 3
When perforated area ratio is greater than 0.1296 less than 0.8100, hole is relatively large, and part wind can be directly through hole, so that wind pressure
Coefficient is integrally less than normal, and resistance reduces.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in the form of others dress body.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that by all in the meaning and scope for the condition of equivalent for falling in claim
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. it is a kind of based on the variable folding wall surface resistance adjustment structure containing through hole, including fold wall surface, it is characterised in that: it is described
It folds wall surface array to be folded into multiple folding units (1) and can be unfolded automatically, each folding unit (1) is rectangular sheet
Shape simultaneously successively carries out secondary symmetrical fold by boundary of two center lines, will fold unit (1) by matrix pattern and is divided into four small squares
Shape piece (2), the folding line folded between small rectangular sheet (2) described in each adjacent two of wall surface are hinged by plasticity, each small square
Shape piece (2) central excavation has resistance regulation hole (3), by the control of the aperture size of the resistance regulation hole (3) increase resistance or
Drag reduction.
2. according to claim 1 a kind of based on the variable folding wall surface resistance adjustment structure containing through hole, feature exists
In: the folding wall surface uses shape memory high molecule polymer material, at which in unfolded state and lower than the material
In the case where glass transition temperature, carries folded under driving outside, when being warming up to higher than its glass transition temperature
Wall surface release prestressing force is folded gradually to be unfolded automatically.
3. according to claim 2 a kind of based on the variable folding wall surface resistance adjustment structure containing through hole, feature exists
In: temperature controller is installed on the folding wall surface, temperature regulation is carried out to wall surface is folded by temperature controller, to control
It is made to be unfolded automatically.
4. according to claim 1 a kind of based on the variable folding wall surface resistance adjustment structure containing through hole, feature exists
In: the folding wall surface uses deformable composite laminated plate, and internal layer is pure elastomer, and outer layer is long using shape memory
Fiber reinforcement, shape memory long fibre is elongated after shape memory programming, folds wall surface and folded bent occurs.
5. according to claim 2 or 4 a kind of based on the variable folding wall surface resistance adjustment structure containing through hole, feature
Be: the perforated area ratio of the resistance regulation hole (3) folds wall surface to increase resistance, resistance when being greater than 0.0004 less than 0.1296
The perforated area ratio of adjusting hole (3) folds wall surface when being greater than 0.1296 less than 0.8100 be drag reduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566378.0A CN110254728A (en) | 2019-06-26 | 2019-06-26 | It is a kind of based on the variable folding wall surface resistance adjustment structure containing through hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566378.0A CN110254728A (en) | 2019-06-26 | 2019-06-26 | It is a kind of based on the variable folding wall surface resistance adjustment structure containing through hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110254728A true CN110254728A (en) | 2019-09-20 |
Family
ID=67922253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910566378.0A Pending CN110254728A (en) | 2019-06-26 | 2019-06-26 | It is a kind of based on the variable folding wall surface resistance adjustment structure containing through hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110254728A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115817853A (en) * | 2023-02-17 | 2023-03-21 | 中国人民解放军军事科学院国防科技创新研究院 | Self-locking unit with programming function and self-locking array system formed by self-locking units |
| JP7433646B2 (en) | 2020-07-21 | 2024-02-20 | 学校法人 名城大学 | Deployment structure |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1209204A (en) * | 1968-04-23 | 1970-10-21 | Astro Res Corp | Parachute |
| US20040155153A1 (en) * | 2002-12-27 | 2004-08-12 | Booth William R. | Skyhook reserve parachute deployment system |
| US8636253B1 (en) * | 2011-03-03 | 2014-01-28 | Deployable Space Systems | Rollable and accordian foldable refractive concentrator space solar array panel |
| US8915474B1 (en) * | 2012-09-21 | 2014-12-23 | Space Systems/Loral, Llc | Solar panel sequencing mechanism |
| CN104260900A (en) * | 2014-10-25 | 2015-01-07 | 哈尔滨工业大学 | Elastic hinge driving truss type foldable unit and foldable supporting arm |
| CN104290921A (en) * | 2014-09-11 | 2015-01-21 | 哈尔滨工业大学 | Pneumatic damping speed reducer structure capable of being unfolded through air inflation |
| WO2015100414A1 (en) * | 2013-12-27 | 2015-07-02 | Arizona Board Of Regents On Behalf Of Arizona State University | Deformable origami batteries |
| US20160040657A1 (en) * | 2014-08-07 | 2016-02-11 | Massachusetts Institute Of Technology | Self-Folding Machines |
| US20160288914A1 (en) * | 2015-03-31 | 2016-10-06 | Ami Industries, Inc. | Apogee enhancing ejection seat stabilization drogue chute |
| RU169747U1 (en) * | 2016-07-18 | 2017-03-31 | Алексей Игоревич Салмин | Airship modular shell |
| US20170269188A1 (en) * | 2016-03-17 | 2017-09-21 | Ohio State Innovation Foundation | Folded transducer array for compact and deployable wave-energy guiding system |
| CN107458577A (en) * | 2016-06-03 | 2017-12-12 | 比亚迪股份有限公司 | Folding device and unmanned plane |
| US20180155018A1 (en) * | 2015-06-01 | 2018-06-07 | Imperial Innovations Limited | Aerial Devices Capable of Controlled Flight |
| CN207725602U (en) * | 2018-01-16 | 2018-08-14 | 石家庄慷派世纪数码科技有限公司 | A kind of miniature self-service airfoil fold mechanism |
| CN108583939A (en) * | 2018-05-30 | 2018-09-28 | 南京航空航天大学 | A kind of space development mechanism applied to the satellite sun wing |
| CA3070366A1 (en) * | 2017-07-21 | 2019-01-24 | The Aerospace Corporation | Interlocking, reconfigurable, reconstitutable, reformable cell-based space system |
| CN109515752A (en) * | 2018-12-07 | 2019-03-26 | 上海宇航系统工程研究所 | A kind of deployable solar array and its compress relieving mechanism |
-
2019
- 2019-06-26 CN CN201910566378.0A patent/CN110254728A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1209204A (en) * | 1968-04-23 | 1970-10-21 | Astro Res Corp | Parachute |
| US20040155153A1 (en) * | 2002-12-27 | 2004-08-12 | Booth William R. | Skyhook reserve parachute deployment system |
| US8636253B1 (en) * | 2011-03-03 | 2014-01-28 | Deployable Space Systems | Rollable and accordian foldable refractive concentrator space solar array panel |
| US8915474B1 (en) * | 2012-09-21 | 2014-12-23 | Space Systems/Loral, Llc | Solar panel sequencing mechanism |
| WO2015100414A1 (en) * | 2013-12-27 | 2015-07-02 | Arizona Board Of Regents On Behalf Of Arizona State University | Deformable origami batteries |
| US20160040657A1 (en) * | 2014-08-07 | 2016-02-11 | Massachusetts Institute Of Technology | Self-Folding Machines |
| CN104290921A (en) * | 2014-09-11 | 2015-01-21 | 哈尔滨工业大学 | Pneumatic damping speed reducer structure capable of being unfolded through air inflation |
| CN104260900A (en) * | 2014-10-25 | 2015-01-07 | 哈尔滨工业大学 | Elastic hinge driving truss type foldable unit and foldable supporting arm |
| US20160288914A1 (en) * | 2015-03-31 | 2016-10-06 | Ami Industries, Inc. | Apogee enhancing ejection seat stabilization drogue chute |
| US20180155018A1 (en) * | 2015-06-01 | 2018-06-07 | Imperial Innovations Limited | Aerial Devices Capable of Controlled Flight |
| US20170269188A1 (en) * | 2016-03-17 | 2017-09-21 | Ohio State Innovation Foundation | Folded transducer array for compact and deployable wave-energy guiding system |
| CN107458577A (en) * | 2016-06-03 | 2017-12-12 | 比亚迪股份有限公司 | Folding device and unmanned plane |
| RU169747U1 (en) * | 2016-07-18 | 2017-03-31 | Алексей Игоревич Салмин | Airship modular shell |
| CA3070366A1 (en) * | 2017-07-21 | 2019-01-24 | The Aerospace Corporation | Interlocking, reconfigurable, reconstitutable, reformable cell-based space system |
| CN207725602U (en) * | 2018-01-16 | 2018-08-14 | 石家庄慷派世纪数码科技有限公司 | A kind of miniature self-service airfoil fold mechanism |
| CN108583939A (en) * | 2018-05-30 | 2018-09-28 | 南京航空航天大学 | A kind of space development mechanism applied to the satellite sun wing |
| CN109515752A (en) * | 2018-12-07 | 2019-03-26 | 上海宇航系统工程研究所 | A kind of deployable solar array and its compress relieving mechanism |
Non-Patent Citations (2)
| Title |
|---|
| 刘珺: "基于折纸结构的变体飞机蒙皮设计", 《优秀硕士学位论文全文库工程科技Ⅱ辑》 * |
| 王鹏: "PVDF超滤膜抗污染性能及PVDF介孔膜合成应用研究", 《优秀硕士学位论文全文库工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7433646B2 (en) | 2020-07-21 | 2024-02-20 | 学校法人 名城大学 | Deployment structure |
| CN115817853A (en) * | 2023-02-17 | 2023-03-21 | 中国人民解放军军事科学院国防科技创新研究院 | Self-locking unit with programming function and self-locking array system formed by self-locking units |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1995455B1 (en) | Actuation system for a wind turbine blade flap | |
| CN110254728A (en) | It is a kind of based on the variable folding wall surface resistance adjustment structure containing through hole | |
| Vocke III et al. | Development and testing of a span-extending morphing wing | |
| US6419187B1 (en) | Profile | |
| US8061986B2 (en) | Wind turbine blades with controllable aerodynamic vortex elements | |
| CN107249254A (en) | A kind of stretchable or bending compound circuit system and preparation method thereof | |
| CN110371324B (en) | Solar sail driven to be unfolded intelligently by multi-stable curved beam | |
| WO1983003860A1 (en) | Deployable truss | |
| CN103552696A (en) | Frame-type space extensible structure based on shape memory polymer | |
| CN103241366A (en) | High-positioned 3-position variable camber Krueger flap | |
| WO2020079424A1 (en) | Materials with structures exhibiting zero poisson's ratio | |
| CN210258812U (en) | Morphing wing based on active deformation negative Poisson ratio honeycomb structure | |
| CN104443346A (en) | Large-deformation composite material with flexible cellular structure and preparation method of large-deformation composite material | |
| CN110238830A (en) | A kind of zero Poisson's ratio multistable extending arm based on shape-memory polymer | |
| Zhao et al. | Stiff reconfigurable polygons for smart connecters and deployable structures | |
| CN103481403A (en) | Arrangement and method for manufacturing a wind turbine blade | |
| US20070138341A1 (en) | Transformable skin | |
| CN110650838A (en) | Stretchable nanocomposite skin materials and related structures | |
| US10479478B2 (en) | Composite material suitable for a morphing skin | |
| CN108639357B (en) | Pressurized oil tank skin with bearing and deformation integration | |
| CN115806042A (en) | Morphing wing and aircraft | |
| CN108150353B (en) | Chord change device, blade, chord change control method and control system | |
| WO2018135739A1 (en) | Shape memory morphing member using kirigami pattern | |
| DE202009017110U1 (en) | Membranbaukomponente | |
| CN109572988B (en) | Deformation aircraft cabin section structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190920 |