CN109131876A - A kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing - Google Patents
A kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing Download PDFInfo
- Publication number
- CN109131876A CN109131876A CN201811241427.5A CN201811241427A CN109131876A CN 109131876 A CN109131876 A CN 109131876A CN 201811241427 A CN201811241427 A CN 201811241427A CN 109131876 A CN109131876 A CN 109131876A
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- Prior art keywords
- wing
- flexible
- computation
- dragonfly
- flapping
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- 241000238633 Odonata Species 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 claims description 28
- 230000000694 effects Effects 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 6
- 239000007767 bonding agent Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 claims description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C33/00—Ornithopters
- B64C33/02—Wings; Actuating mechanisms therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C33/00—Ornithopters
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
Abstract
一种新型仿蜻蜓翅膀柔性扑翼，所述仿蜻蜓翅膀柔性扑翼的一端为固定端，另一端为自由端，仿蜻蜓翅膀柔性扑翼至少包括展向梁、弦向梁、柔性关节、蒙皮，弦向梁通过柔性关节与展向梁连接，形成骨架，蒙皮包围在骨架外且用粘接剂或铆钉固定于骨架上。本发明提供的新型仿蜻蜓翅膀柔性扑翼，不仅解决了扑翼承载能力和变形之间的矛盾问题，而且结构简洁，容易操纵，能够提高扑翼飞行的气动性能。
A new type of imitation dragonfly wing flexible flapping wing, one end of the imitation dragonfly wing flexible flapping wing is a fixed end, the other end is a free end, the imitation dragonfly wing flexible flapping wing at least comprises a span-wise beam, a chord-wise beam, a flexible joint, and a mask. The skin and the chord beam are connected with the span beam through flexible joints to form a skeleton, and the skin is surrounded by the skeleton and fixed on the skeleton with adhesives or rivets. The novel imitation dragonfly wing flexible flapping wing provided by the invention not only solves the contradiction between the flapping wing bearing capacity and deformation, but also has a simple structure and easy manipulation, and can improve the aerodynamic performance of the flapping wing flight.
Description
Technical field
The invention mainly relates to flapping wing aircraft field more particularly to a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing.
Background technique
The pneumatic efficiency of flapping wing aircraft is high, can provide lift and thrust simultaneously by flapping motion.Traditional flapping wing flies
Row device mostly uses rigid wing, and due to flexible insufficient, shape invariance, function compares limitation；The intelligent active control developed
Deformation flapping wing, be related to the complex technologies such as intellectual material, realize that difficulty is higher.And the insect in nature by flapping motion and
The Passive deformation of wing has very superb flight performance, and dragonfly is even more outstanding person therein.
Summary of the invention
In order to solve prior art problem, the present invention provides a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing, the imitative dragonfly
One end of wing Computation of Flexible Flapping-Wing is fixing end, and the other end is free end, imitates dragonfly wing Computation of Flexible Flapping-Wing and includes at least Zhan Xiangliang, string
Xiang Liang, flexible joint, covering, tangential beam connects by flexible joint with opening up to beam, formation skeleton, covering be enclosed in skeleton outside and
It is fixed on skeleton with bonding agent or rivet.
In some embodiments, the flexible joint has the tangential beam of Computation of Flexible Flapping-Wing and Zhan Xiangliang in junction single
To rotatable effect.
In some embodiments, the flexible joint in torsionspring, spring hinge, flexible hinge at least one
Kind.
In some embodiments, described open up to the material of beam is aluminium alloy, elasticity modulus 60-80GPa.
In some preferred embodiments, described open up to the material of beam is aluminium alloy, elasticity modulus 72GPa.
In some embodiments, the material of the tangential beam is magnesium alloy, elasticity modulus 40-50GPa.
In some preferred embodiments, the material of the tangential beam is magnesium alloy, elasticity modulus 45GPa.
In some embodiments, the material of the tangential beam is titanium alloy, elasticity modulus 110-120GPa.
In some preferred embodiments, the material of the tangential beam is titanium alloy, elasticity modulus 114GPa.
In some embodiments, the material of the tangential beam is composite material.
In some embodiments, the material of the covering is thin polymer film.
In some embodiments, the cross section of the skeleton is " W " type.
In some embodiments, the depth of the skeleton is the 0-10% of chord length.
Novel imitation dragonfly wing Computation of Flexible Flapping-Wing provided by the invention, be it is a kind of can Passive deformation wing structure.Not only solve
Contradictory problems between existing flapping wing bearing capacity of having determined and deformation, and it is simple for structure, it is easy manipulation.Inventors have found that this
The Computation of Flexible Flapping-Wing that invention provides not only has enough bearing capacitys and bending stiffness, and can be improved the pneumatic property of flapping flight
Energy.Inventor thinks that this is related with the deformation of airfoil cross-section shape and tangential generation.
Inventors have found that the tangential beam of Computation of Flexible Flapping-Wing and Zhan Xiangliang can be made to have in junction by setting flexible joint
Have and unidirectionally can be rotated effect.Moreover, Computation of Flexible Flapping-Wing provided by the invention is whole has different rigidity to tangential in exhibition
To meet respective demand.
Detailed description of the invention
Fig. 1 is imitative dragonfly wing Computation of Flexible Flapping-Wing structural schematic diagram；
Fig. 2 is the cross-sectional view of imitative dragonfly wing Computation of Flexible Flapping-Wing；
Fig. 3 is three kind flexible joint schematic diagrames of the exhibition to beam and tangential beam junction；
Fig. 4 is the cross-sectional view of deformation front and back.
Respectively label is as follows in figure, and 1 is fixing end, and 2 be Zhan Xiangliang, and 3 be tangential beam, and 4 be flexible joint, and 5 be covering.
Specific embodiment
Such as Fig. 1, the present invention provides a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing, and the one of the imitative dragonfly wing Computation of Flexible Flapping-Wing
End is fixing end 1, and the other end is free end, imitates dragonfly wing Computation of Flexible Flapping-Wing and includes at least exhibition to beam 2, tangential beam 3, flexible joint
4, covering 5, tangential beam connects by flexible joint with opening up to beam, formation skeleton, covering be enclosed in skeleton outside and with bonding agent or
Rivet is fixed on skeleton.
In some embodiments, the flexible joint has the tangential beam of Computation of Flexible Flapping-Wing and Zhan Xiangliang in junction single
To rotatable effect.
In some embodiments, the flexible joint in torsionspring, spring hinge, flexible hinge at least one
Kind.
Such as Fig. 3 a, in some embodiments, the flexible joint is torsionspring.
Such as Fig. 3 b, in some embodiments, the flexible joint is spring hinge.
Such as Fig. 3 c, in some embodiments, the flexible joint is flexible hinge.
The above is only exemplary illustration, the specific example of flexible joint of the present invention includes but is not limited to reverse bullet
Spring, spring hinge, flexible hinge.
In some embodiments, described open up to the material of beam is aluminium alloy, elasticity modulus 60-80GPa.
In some preferred embodiments, described open up to the material of beam is aluminium alloy, elasticity modulus 72GPa.
In some embodiments, the material of the tangential beam is magnesium alloy, elasticity modulus 40-50GPa.
In some preferred embodiments, the material of the tangential beam is magnesium alloy, elasticity modulus 45GPa.
In some embodiments, the material of the tangential beam is titanium alloy, elasticity modulus 110-120GPa.
In some preferred embodiments, the material of the tangential beam is titanium alloy, elasticity modulus 114GPa.
In some embodiments, the material of the tangential beam is composite material.The example includes but is not limited to carbon fiber
Enhance composite material.
In some embodiments, the material of the covering is thin polymer film.The example includes but is not limited to poly- fluorine second
Alkene film.
Such as Fig. 2, in some embodiments, the cross section of the skeleton is " W " type.
In some embodiments, the depth of the skeleton is the 0-10% of chord length.
Term " depth " refers to the fold amplitude of flapping wing cross section.
Flexible Node is set to the junction of beam and tangential beam in exhibition, the rotational stiffness of tangential beam here can be according to need
Seek adjusting size.
Inventor passes through years of researches, and the spirit of imitative dragonfly wing Computation of Flexible Flapping-Wing is obtained from the dragonfly wing of nature
Sense, proposes a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing, as shown in Figure 1.Imitative dragonfly wing Computation of Flexible Flapping-Wing bone provided by the invention
The cross section of frame is " W " font, guarantees wing in exhibition to enough bending stiffnesses；The structure feature of flexible joint, not shadow
Ring exhibition to bending stiffness, make it is tangential generate necessary Passive deformation, can optimizing pneumatic performance, to adapt to complicated big compression ring
Border.It is this can Passive deformation flapping wing have it is simple for structure, the characteristics of manoeuvrable.
" W " font section in the present invention can guarantee that wing, to enough rigidity, is drawn in exhibition with resisting pneumatic power
The bending deformation risen, as shown in Figure 2.
The present invention allows tangential beam to rotate at node around Zhan Xiangliang by the setting of flexible joint, is realized with this " big to turn
Dynamic, small strain " had not only realized that wing in tangential deformation, but also avoided tired at node.
As shown in figure 3, flexible joint refers in exhibition to " recessed " side of beam and tangential beam junction, by having unidirectional turn
The tangential beam of the connection such as torsionspring, spring hinge, flexible hinge of dynamic effect and Zhan Xiangliang, so that tangential beam is by pneumatic masterpiece
Used time is easy from " recessed " laterally " convex " side rotation.
Inventor has found under study for action, by the setting of flexible joint, can make Computation of Flexible Flapping-Wing during fluttering up and down,
Obvious " arching upward " deformation occurs for chordwise section, and flapping wing cross section becomes curved surface, as shown in Figure 4.This deformation increases flutters up and down
The front face area of wing, promotes aerodynamic lift during flutterring under, pneumatic thrust is promoted during upper flutter, to improve in dynamic
Pneumatic efficiency.
The present invention is further explained combined with specific embodiments below.
Embodiment 1
Such as Fig. 1, a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing, one end of the imitative dragonfly wing Computation of Flexible Flapping-Wing is fixing end
1, the other end is free end, and imitating dragonfly wing Computation of Flexible Flapping-Wing includes opening up to beam 2, tangential beam 3, flexible joint 4, covering 5, tangential beam
It is connect by flexible joint with opening up to beam, forms skeleton, it is outer and be fixed on skeleton with bonding agent that covering is enclosed in skeleton.It is described
Flexible joint, which has the tangential beam of Computation of Flexible Flapping-Wing and Zhan Xiangliang in junction, unidirectionally can be rotated effect.The flexible joint is to turn round
Turn spring.Described open up to the material of beam is aluminium alloy, elasticity modulus 72GPa.The cross section of the skeleton is " W " type.It is described
The depth of skeleton is the 10% of chord length.
Embodiment 2
Such as Fig. 1, a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing, one end of the imitative dragonfly wing Computation of Flexible Flapping-Wing is fixing end
1, the other end is free end, and imitating dragonfly wing Computation of Flexible Flapping-Wing includes opening up to beam 2, tangential beam 3, flexible joint 4, covering 5, tangential beam
It is connect by flexible joint with opening up to beam, forms skeleton, it is outer and be fixed on skeleton with rivet that covering is enclosed in skeleton.It is described soft
Property joint make Computation of Flexible Flapping-Wing tangential beam and Zhan Xiangliang junction have unidirectionally can be rotated effect.The flexible joint is spring
Hinge.The material of the tangential beam is magnesium alloy, elasticity modulus 45GPa.The cross section of the skeleton is " W " type.The bone
The depth of frame is the 8% of chord length.
Embodiment 3
Such as Fig. 1, a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing, one end of the imitative dragonfly wing Computation of Flexible Flapping-Wing is fixing end
1, the other end is free end, and imitating dragonfly wing Computation of Flexible Flapping-Wing includes opening up to beam 2, tangential beam 3, flexible joint 4, covering 5, tangential beam
It is connect by flexible joint with opening up to beam, forms skeleton, it is outer and be fixed on skeleton with bonding agent that covering is enclosed in skeleton.It is described
Flexible joint, which has the tangential beam of Computation of Flexible Flapping-Wing and Zhan Xiangliang in junction, unidirectionally can be rotated effect.The flexible joint is soft
Property hinge.The material of the tangential beam is titanium alloy, elasticity modulus 114GPa.The cross section of the skeleton is " W " type.It is described
The depth of skeleton is the 6% of chord length.
Embodiment 4
Such as Fig. 1, a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing, one end of the imitative dragonfly wing Computation of Flexible Flapping-Wing is fixing end
1, the other end is free end, and imitating dragonfly wing Computation of Flexible Flapping-Wing includes opening up to beam 2, tangential beam 3, flexible joint 4, covering 5, tangential beam
It is connect by flexible joint with opening up to beam, forms skeleton, it is outer and be fixed on skeleton with rivet that covering is enclosed in skeleton.It is described soft
Property joint make Computation of Flexible Flapping-Wing tangential beam and Zhan Xiangliang junction have unidirectionally can be rotated effect.The flexible joint is spring
Hinge.The material of the tangential beam is carbon fibre reinforced composite.The cross section of the skeleton is " W " type.The skeleton
Depth is the 4% of chord length.
Embodiment 5
Such as Fig. 1, a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing, one end of the imitative dragonfly wing Computation of Flexible Flapping-Wing is fixing end
1, the other end is free end, and imitating dragonfly wing Computation of Flexible Flapping-Wing includes opening up to beam 2, tangential beam 3, flexible joint 4, covering 5, tangential beam
It is connect by flexible joint with opening up to beam, forms skeleton, it is outer and be fixed on skeleton with bonding agent that covering is enclosed in skeleton.It is described
Flexible joint, which has the tangential beam of Computation of Flexible Flapping-Wing and Zhan Xiangliang in junction, unidirectionally can be rotated effect.The flexible joint is to turn round
Turn spring.The material of the covering is polyvinyl fluoride thin film.The cross section of the skeleton is " W " type.The depth of the skeleton is
The 2% of chord length.
Claims (10)
1. a kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing, which is characterized in that one end of the imitative dragonfly wing Computation of Flexible Flapping-Wing is solid
Fixed end, the other end are free end, imitate dragonfly wing Computation of Flexible Flapping-Wing and include at least Zhan Xiangliang, tangential beam, flexible joint, covering, string
Connect to beam by flexible joint with opening up to beam, formation skeleton, covering is enclosed in skeleton and is fixed on outside and with bonding agent or rivet
On skeleton.
2. Novel imitation dragonfly wing Computation of Flexible Flapping-Wing as described in claim 1, which is characterized in that the flexible joint flutters flexibility
The tangential beam and Zhan Xiangliang of the wing have in junction unidirectionally can be rotated effect.
3. Novel imitation dragonfly wing Computation of Flexible Flapping-Wing as described in claim 1, which is characterized in that the flexible joint is selected from torsion
At least one of spring, spring hinge, flexible hinge.
4. Novel imitation dragonfly wing Computation of Flexible Flapping-Wing as described in claim 1, which is characterized in that described open up to the material of beam is aluminium
Alloy, elasticity modulus 60-80GPa.
5. Novel imitation dragonfly wing Computation of Flexible Flapping-Wing as described in claim 1, which is characterized in that the material of the tangential beam is magnesium
Alloy, elasticity modulus 40-50GPa.
6. Novel imitation dragonfly wing Computation of Flexible Flapping-Wing as described in claim 1, which is characterized in that the material of the tangential beam is titanium
Alloy, elasticity modulus 110-120GPa.
7. Novel imitation dragonfly wing Computation of Flexible Flapping-Wing as described in claim 1, which is characterized in that the material of the tangential beam is multiple
Condensation material.Such as carbon fibre reinforced composite.
8. Novel imitation dragonfly wing Computation of Flexible Flapping-Wing as described in claim 1, which is characterized in that the material of the covering is polymerization
Object film.Such as polyvinyl fluoride thin film.
9. Novel imitation dragonfly wing Computation of Flexible Flapping-Wing as described in claim 1, which is characterized in that the cross section of the skeleton is
" W " type.
10. Novel imitation dragonfly wing Computation of Flexible Flapping-Wing as described in claim 1, which is characterized in that the depth of the skeleton is string
Long 0-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241427.5A CN109131876A (en) | 2018-10-24 | 2018-10-24 | A kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241427.5A CN109131876A (en) | 2018-10-24 | 2018-10-24 | A kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing |
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| Publication Number | Publication Date |
|---|---|
| CN109131876A true CN109131876A (en) | 2019-01-04 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811241427.5A Pending CN109131876A (en) | 2018-10-24 | 2018-10-24 | A kind of Novel imitation dragonfly wing Computation of Flexible Flapping-Wing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112278268A (en) * | 2020-10-30 | 2021-01-29 | 航空工业信息中心 | Flapping wing structure imitating dragonfly wing |
| CN112810814A (en) * | 2019-11-18 | 2021-05-18 | 上海海事大学 | Novel slender flexible flapping wing |
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| CN101492094A (en) * | 2008-01-22 | 2009-07-29 | 西北工业大学 | Flapping wing capable of being bent in one direction of miniature ornithopter |
| CN201941975U (en) * | 2010-12-29 | 2011-08-24 | 上海工程技术大学 | Ornithopter simulating folding wing flapping of birds |
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| KR101845748B1 (en) * | 2016-10-07 | 2018-04-05 | 이상철 | Flapping flight device with varying wingspan |
| CN209382270U (en) * | 2018-10-24 | 2019-09-13 | 上海海事大学 | A new flexible flapping wing imitating dragonfly wings |
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2018
- 2018-10-24 CN CN201811241427.5A patent/CN109131876A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200281641Y1 (en) * | 2002-03-28 | 2002-07-13 | 조 원 장 | The ornithopter equipped with joint apparatus |
| KR20060030317A (en) * | 2004-10-05 | 2006-04-10 | 장동영 | Newbot's winged drive |
| CN101492094A (en) * | 2008-01-22 | 2009-07-29 | 西北工业大学 | Flapping wing capable of being bent in one direction of miniature ornithopter |
| CN201941975U (en) * | 2010-12-29 | 2011-08-24 | 上海工程技术大学 | Ornithopter simulating folding wing flapping of birds |
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Application publication date: 20190104 |