CN113247249B

CN113247249B - Bionic array structure for feather distribution in forearm area of prey bird

Info

Publication number: CN113247249B
Application number: CN202110744770.7A
Authority: CN
Inventors: 唐迪; 车婧琦; 金伟杰; 黄喜鹏
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-08-19
Anticipated expiration: 2041-06-30
Also published as: CN113247249A

Abstract

Bionic array structure of prey bird forearm district feather distribution belongs to bionic structure technical field. It includes the bionical feather array of dorsal side and the bionical feather array of ventral side, the bionical feather array of dorsal side and the bionical feather array combination of ventral side form bionical feather, the bionical feather array of dorsal side includes dorsal side front end array, dorsal side carpal bone array, the first phalanx array of dorsal side and dorsal side metacarpal bone near-end array, the bionical feather array of ventral side includes ventral side front end array, ventral side carpal bone array, the first phalanx array of ventral side and ventral side metacarpal bone near-end array. The bionic feather array suitable for the bionic aircraft is designed by taking the attachment arrays of the secondary flying feather and the covering feather at the middle forearm, the carpal bone, the first phalanx and the metacarpal bone of the forearms of the birds with prey as bionic prototypes, so that the flight resistance of the bionic aircraft is reduced, and the flight efficiency is improved.

Description

Bionic array structure for feather distribution in forearm area of prey bird

Technical Field

The invention belongs to the technical field of bionic structures, and particularly relates to a bionic array structure for feather distribution in a forearm area of a prey bird.

Background

The bird wings are responsible for generating almost all of the aerodynamic forces required for flight. Bird fins are composed of feathers that can be folded or unfolded to adjust aerodynamic forces. Feathers evolved to balance the requirements of aerodynamic performance and mechanical integrity while performing ecological and behavioral functions. The asymmetric shape of the wings, the long flexible trailing edge and the stiff leading edge help the primary flight to withstand the oncoming air resistance. Recently, researchers have focused on the microstructure of feathers. For example, using airborne and high-speed video, the recovery of wing shape during perching of grassland eagles, including the effect of aeroelastic feather deflection, was studied; different kinds of feathers have their own characteristics, and the geometrical shapes of the wing feathers and wings of seagulls, autumnal ducks, water ducks and owls are studied.

The connection between the flying feather (primary flying feather, secondary flying feather and covering feather) and the wings of the bird and the connection between the wings of the bird and the wings of the bird depend on a plurality of small ligament tissues and muscle tissues. These tissues have been shown to act by coordinating contractions and act on feathers to assist the wings in flexion and extension movements. This study has received increasing attention, and work has been carried out starting from the location of feather attachment and the papilla of the ulna where the feather root is growing. Later work had a deep understanding of the mechanism of attachment of the main muscles between the fletching and the wings, as well as the elastic tissue present in most ligaments.

At present, the research on the array mode of the feathers on the upper surface and the lower surface of the bird wing is very little, and the invention researches the mode and takes the mode as a bionic prototype to optimize the performance of the bionic aircraft.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a bionic array structure for feather distribution in the forearm area of a prey bird, the structure takes an array mode of feathers on the upper surface and the lower surface of a bird wing as a bionic prototype, and the structure is operated on a bionic aircraft, so that the flight resistance of the bionic aircraft can be reduced, and the flight efficiency can be improved.

The invention provides the following technical scheme: bionic array structure that prey birds forearm district feather distributes, its characterized in that: the bionic feather array comprises a dorsal bionic feather array and a ventral bionic feather array, wherein the dorsal bionic feather array and the ventral bionic feather array are combined to form bionic feathers, the dorsal bionic feather array comprises a dorsal front end array, a dorsal carpal array, a dorsal first phalanx array and a dorsal metacarpal proximal end array, and the ventral bionic feather array comprises a ventral front end array, a ventral carpal array, a ventral first phalanx array and a ventral metacarpal proximal end array;

the bionic feather is arranged on the bionic wing, the bionic wing comprises a wing humerus, a wing radius, a wing ulna, a wing carpal, a wing metacarpal and a first finger bone of the wing, the bionic tendon is arranged between the near end of the wing humerus and the near end of the wing metacarpal, the bionic wing is covered with bionic muscles, and the bionic feather is attached to the epidermis of the bionic muscles.

The bionical array structure of birds of prey forearm district feather distribution, its characterized in that dorsal part front end array includes that a plurality of roots install the bionical filoplume of secondary at wing dorsal part lower limb, a plurality of roots bionical filoplume of secondary arranges in proper order to wing dorsal part near-end along wing dorsal part distal end, and the size of secondary bionical filoplume diminishes gradually, the plume of secondary bionical filoplume sets up down, the basal portion of secondary bionical filoplume is located the wing surface, and is covered the parcel by bionical muscle, every it covers filoplume, dorsal part bionical filoplume in dorsal part bionical all to adhere to around the root of secondary bionical filoplume, a plurality of roots the equipartition has a plurality of bionical filoplumes on the epidermis between the root of secondary bionical filoplumoplumoplumoplume and the bionical tendon of dorsal part, dorsal part bionical filoplumoplumoplumoplumoplumoplumoplumoplumoplumoplumoplumoplumoplume is downwards and the setting of wing distal end orientation of deviant, wing dorsal part uppermost edge of wing dorsal part edge is equipped with a plurality of bionical dorsal part, the bionic edge small feather covers on the back side are closely arranged and face the far end direction of the back side of the wing in a unified mode, a first bare area is arranged on the skin of the elbow joint on the back side of the wing, and the elbow joint on the back side of the wing refers to the intersection of the humerus, the ulna and the radius of the bionic wing.

Bionical array structure that bird forearm district feather distributes, its characterized in that is every secondary bionical filoplume and corresponding dorsal part bionical big cover feather, dorsal part bionical well cover feather, dorsal part bionical little cover feather combination formation unit around its root, the feather root basal part of the bionical big cover feather of dorsal part is located the top of the bionical filoplume basal part one side of secondary to by bionical muscle parcel, the feather shaft of the bionical big cover feather of dorsal part sets up down, cover the opposite side that the feather is located the bionical filoplume basal part of secondary in the dorsal part bionical, the axis of covering the feather root parallels with the axis of the bionical big cover feather root of dorsal part in the dorsal part bionical.

The bionic array structure is characterized in that the back-side metacarpal proximal end array comprises a row of bionic primary feathers arranged at the lower edge of the wing back-side metacarpal, one side of the base of each bionic primary feathers feather root is attached with a back-side bionic metacarpal large coverage feather, the other side of each base is attached with a back-side bionic metacarpal medium coverage feather, back-side bionic metacarpal small coverage feathers are attached to the upper part of the base of the bionic primary feather root, a bare area II is arranged at the joint between the upper edge of the wing back-side metacarpal proximal end and the lower edge of the first phalanx, and a bare area III is arranged on the skin of the wing back-side metacarpal joint;

the bionic array structure for feather distribution in the forearm area of the bird with prey is characterized in that the dorsal carpal array comprises bionic carpal fletching feathers attached to dorsal carpals of wings and dorsal bionic carpal fletching feathers, dorsal bionic carpal middle fletching feathers, dorsal bionic carpal small fletching feathers and dorsal bionic edge small fletching feathers which are sequentially installed along the dorsal carpals of the wings from bottom to top, wherein the shaft diameter and the shaft length of the feather axes of the bionic carpal fletching feathers are smaller than those of the secondary bionic fletching feathers, and the dorsal bionic carpal big fletching feathers, the bionic carpal middle fletching feathers, the dorsal bionic carpal small fletching feathers and the dorsal bionic edge small fletching feathers face the far end of the dorsal wings; the dorsal first phalanx array comprises a plurality of dorsal bionic phalanx cover feathers and bionic winglets attached to first phalanges on the dorsal first phalanx of the wing, the bionic winglets are arranged along the lower edge of the first phalanx on the dorsal side of the wing, and a plurality of dorsal bionic edge cover feathers are attached to the upper edge of the first phalanx on the dorsal side of the wing.

The bionic array structure that the feather distributes in preceding bird's forearm district of prey, its characterized in that ventral front end array includes that a plurality of roots install the bionical flying feather of secondary at wing ventral lower limb, a plurality of the bionical flying feather of secondary arranges to the wing near-end along the wing ventral distal end in proper order, and the size of the bionical flying feather of secondary diminishes gradually, the plume of the bionical flying feather of secondary sets up down, the basal portion of the bionical flying feather root of secondary is located the wing ventral surface, and is covered the parcel by bionical muscle, all adheres to around the root of every bionical flying feather of secondary and has the bionically big feather of ventral, the bionically little feather of ventral covering, ventral cover, the bionically little feather of ventral covering down and the setting of partial wing distal end orientation, the bionically feather root basal portion of bionical flying feather of secondary is equipped with first region, second area, third area and fourth area from the bottom to top in proper order between the wing ventral upper end, all install the bionical little feather of a plurality of ventral sides in the first region, in the third region, the intensity that the bionical little feather of ventral side arranged in the first region is greater than the intensity that the bionical little feather of ventral side arranged in the third region, install the bionical edge little feather of ventral side in the fourth region, the bionical edge little feather of ventral side covers the setting towards wing ventral side distal end direction, cover the adjacent setting of feather in first region and the ventral side are bionical, the second region is naked bionical muscle, and wing ventral side elbow joint department is equipped with the naked district four that is connected with the second region, and this wing ventral side elbow joint is same position with elbow dorsal part joint.

The bionic array structure that the feather distributes in high bird forearm district, its characterized in that secondary bionical flying feather, ventral bionical big feather-covering, ventral bionical in feather-covering, ventral bionical little feather-covering combination form a unit, the plume of secondary bionical flying feather is the same with the plume orientation of ventral bionical big feather-covering, the slope sets up between feather-covering and the secondary bionical flying feather in the ventral bionical, the plume of feather-covering is inclined to wing ventral distal end direction in the ventral bionical, the diameter and the length of feather-covering plume in ventral bionical big feather-covering, the ventral bionical is all less than the diameter and the length of feather-covering plume in dorsal bionical big feather-covering, the dorsal bionical.

Bionic array structure that bird of prey forearm district feather distributes, its characterized in that ventral carpal bone array covers the feather including the bionical carpal bone of ventral side of installing on wing ventral side carpal bone, the bionical carpal bone of ventral side covers the continuation of feather for the bionical small of ventral side, the feather axis orientation of the bionical carpal bone of ventral side covers the feather sets up downwards and is partial to wing ventral side distal end direction, the bionical carpal bone of ventral side covers the feather greatly at wing ventral side carpal bone lower limb, the first phalanx array of ventral side covers the feather including the bionical marginal small of ventral side of installing at the first phalanx upper edge of wing ventral side, be equipped with two naked areas five on the first phalanx of wing ventral side, the bionical phalanx of wing ventral side is installed and is covered the feather.

The bionic array structure that prey birds forearm district feather distributes, its characterized in that ventral metacarpal bone near-end array includes the bionical elementary filoplume of a plurality of roots, every the feather root is installed around bionical elementary filoplume and is covered the feather in elementary bionically, the bare area in the second part is divided into two bundles of bare areas six in wing metacarpal bone position punishment, installs ventral bionic metacarpal bone little cover feather between two bundles of bare areas six, ventral bionic edge little cover feather is installed to the top edge of wing ventral metacarpal bone, ventral bionic edge little cover feather, cover feather in elementary bionical big cover feather, elementary bionical and ventral bionic metacarpal bone little cover feather all set up towards wing ventral distal end direction.

Bionic array structure that bird forearm district feather distributes of prey, its characterized in that bionic secondary feather in dorsal part bionic feather array and the bionic feather array of ventral side passes through swivel connected coupler to be fixed on bionical wing, and all the other feathers all pass through bolt snap-on bionical wing, swivel connected coupler includes first connecting pipe and second connecting pipe, first connecting pipe is the same with second connecting pipe structure, sets up relatively, the common cladding has the connecting block between the second connecting pipe between the first connecting pipe, between first connecting pipe and the connecting block, respectively through column mounting one, column mounting two phase connection between second connecting pipe and the connecting block, first connecting pipe passes through bolt one and fixes mutually with the feather that corresponds, the second connecting pipe passes through bolt two fixed mounting on bionical wing.

By adopting the technology, compared with the prior art, the invention has the following beneficial effects:

the bionic feather array suitable for the bionic wing is designed by taking the attached arrays of the secondary flying feather and the covering feather at the middle forearm, the carpal bone, the first phalanx and the metacarpal bone of the forearm of the bird of prey as a bionic prototype. Strong and tough bionic primary flying feathers and bionic secondary flying feathers are distributed at the rear edge of the wing area of the bionic wing, the bionic primary flying feathers are used for blowing air to advance during flying, the bionic primary flying feathers are a main power source for flying, and the bionic secondary flying feathers have the function of adjusting the lifting of the bionic wing; the bionic wing has the advantages that the bionic wing has small bionic feather coverage, middle bionic feather coverage and large bionic feather coverage which are correspondingly distributed at the front edges of the back side and the ventral side of the wing area of the bionic wing, the bionic feather coverage is integrally in a covering tile shape to cover the base of the bionic feather, and the bionic feather coverage is combined with the bionic feather coverage at other parts, so that the surface of the wing becomes streamline, and the air resistance during flight is greatly reduced; meanwhile, the bionic muscles on the surface of the wing are protected from being damaged by the coverage of the bionic feathers.

Drawings

FIG. 1 is a schematic view of a skeleton structure of a bionic wing;

FIG. 2 is a layout diagram of a bionic feather array on the back side of a bionic wing;

FIG. 3 is a schematic view of the combination of bionic feathers at the root of a secondary bionic plume at the back side of a bionic wing according to the present invention;

FIG. 4 is a schematic view of a rotary joint according to the present invention;

FIG. 5 is a layout diagram of an array of bionic feathers on the ventral side of a bionic wing;

FIG. 6 is a schematic view of the combination of bionic feathers at the root of the ventral secondary bionic feathers of the bionic wing of the invention.

In the figure: reference numerals 1 to 18 denote bionic secondary feathers; reference numerals I-II denote bionic primary fletching; 19. bionic large coverage feather on the back side; 20. bionic middle covering feather is arranged on the back side; 21. bionic small feather-covering on the back side; 22. bionic edge little feather coating is carried out on the back side; 23. a first naked area; 24. simulating the skulls; 25. simulating the extensive covering feather of the carpal bone on the back side; 26. covering feather in the bionic carpal; 27. bionic small coverage feather of carpal bones is arranged on the back side; 28. bionic finger bone covering feather on the back side; 29. a second bare area; 30. a bare area III; 31. bionic metacarpal bone covering feather on the back side; 32. covering feather in the dorsal bionic metacarpal; 33. bionic metacarpal bone small coverage feather is arranged on the back side; 34. bionic winged feather; 37. a rotating connector; 38. a first connecting pipe; 39. a second connection pipe; 40. connecting blocks; 41. a first columnar fixing piece; 42. a second columnar fixing piece; 43. a first bolt; 44. a second bolt; 45. simulating the ventral extensive coverage; 46. bionic middle covering feather on the ventral side; 47. bionic small coverage on the ventral side; 48. a bare area four; 49. bionic edge small coverage feather on the ventral side; 50. bionic small covering feathers of the carpal bones at the ventral side; 51. simulating the extensive coverage of the carpal bones on the ventral side; 52. a naked area five; 53. covering feather on the ventral bionic phalanx; 54. primary bionic large feather coverage; 55. primary bionic middle covering feather; 56. a bare area six; 57. the ventral side simulates the small covering feather of the metacarpal bones.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments of the specification. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.

Referring to fig. 1-6, the bionic array structure for feather distribution in the forearm area of the bird of prey includes a dorsal bionic feather array and a ventral bionic feather array, which are combined to form bionic feathers.

The bionic wing comprises a wing humerus, a wing radius, a wing ulna, a wing carpal bone, a wing metacarpal bone and a first finger bone of the wing, the bionic tendon is arranged between the near end of the wing humerus and the near end of the wing metacarpal bone, a layer of bionic muscle tissue covers the bionic tendon and the wing, the bionic feathers are installed on the bionic muscles, the array mode of all the bionic feathers is reasonably arranged, and the bionic feathers are driven to move through the stretching of the bionic muscles.

The dorsal bionic feather array comprises a dorsal front end array, a dorsal carpal array, a dorsal first phalanx array and a dorsal metacarpal proximal end array.

1) Backside front end array layout

Fig. 2 shows the bionic feather array layout on the back side of the wing. Viewed from the bottom to the top, a row of feather roots 1-18 of the bionic secondary feathers are arranged at the lower edge of the wing, the bionic secondary feathers 1 are positioned at the farthest ends of the wing, other feather roots are sequentially arranged towards the near end along the wing and gradually become smaller, and the bionic secondary feathers 18 are positioned at the nearest ends of the wing. The base parts of the feather roots 1 to 18 are positioned on the surface of the wing, covered and wrapped by bionic muscles, and the parts of the feather shafts attached to the bionic feathers are downward. The periphery of the feather root of each bionic secondary flying feather 1-18 is attached with a back side bionic large covering feather 19, a back side bionic middle covering feather 20 and a back side bionic small covering feather 21. The bionic middle hairiness 20 at the back side is attached to all the epidermis parts from the upper part to the vicinity of the bionic tendon, the bionic small hairiness 21 at the back side is evenly distributed in a piece, and the bionic small hairiness 21 at the back side faces downwards and slightly deviates to the far end direction of the wing. Finally, dorsal bionic edge small shroud feathers 22 are grown near the uppermost bionic tendon, and the dorsal bionic edge small shroud feathers 22 are positioned at the upper edge of the wing, are tightly arranged and uniformly face the far end direction of the wing.

In addition, the bionic feather is not installed on the part of the bionic muscle 23 covering the elbow joint of the wing, and the bionic feather is not suitable to be installed on the joint for flexible rotation.

2) A group of bionic feathers are combined:

the bionic secondary feather 1 and a back side bionic large coverage feather 19, a back side bionic middle coverage feather 20 and a back side bionic small coverage feather 21 around the bionic secondary feather 1 are taken as a unit, as shown in a combined graph of the four in fig. 3, the back side bionic large coverage feather 19 is attached to one side of the bionic secondary feather 1, a base point 1 of a feather root of the large coverage feather is slightly higher than one side of a base point 2 of the secondary feather root, and is wrapped by bionic muscles, and a shaft part of the feather is also downward. Two dotted lines in the figure are the extension lines of the axes of the bionic large shroud 19 at the back side and the bionic secondary fly-feather 1, the included angle is alpha, and the axis of the bionic large shroud is slightly deviated to the far end direction of the wing. On the other side of the base point 2 of the secondary flying feather root, a back side bionic middle covering feather 20 is attached at the position opposite to the back side bionic big covering feather 19, and the axis of the feather root of the back side bionic middle covering feather 20 is almost parallel to the big covering feather.

And the shaft diameter of the shaft of the back side bionic large feather 19 is obviously smaller than that of the bionic secondary fly feather 1, the length of the shaft is also shorter, the shaft diameter of the shaft of the back side bionic middle feather 20 is smaller than that of the back side bionic large feather 19, the length of the shaft is also shorter, and the like, the shaft diameter of the shaft of the back side bionic small feather 21 is the smallest, the shaft is the shortest, and the number of the bionic small feathers is the largest.

3) Dorsal carpal array:

the carpal bones are used as the middle connection parts of the wing skeletons and are attached with the bionic carpal bone filoplume 24, as shown in figure 2, the shaft diameter of the feather axis is smaller than that of the bionic secondary filoplume 1, the length of the feather axis is shorter, and the orientation is basically consistent with that of the bionic secondary filoplume 1. Along the wing carpal from bottom to top, a dorsal side bionic carpal big feather 25, a bionic carpal middle feather 26, a dorsal side bionic carpal small feather 27 and a dorsal side bionic edge small feather 22 are sequentially arranged on the bionic muscle. The shroud is generally directed in the distal direction of the wing.

4) Dorsal first phalanx array:

as shown in fig. 2, a dorsal biomimetic edge moustache 22 is also attached to the upper edge of the first phalanx of the wing. The first phalanx of the wing has a relatively small volume, and a few dorsal bionic phalanx hairlines 28 are attached to the surface of the first phalanx, and bionic winglets 34 are attached along the lower edge of the first phalanx.

5) Dorsal metacarpal proximal array:

as shown in fig. 2, the bionic muscle is connected with the upper edge of the proximal end of the metacarpal bone and the lower edge of the first phalanx, and a naked area II 29 is arranged at the joint of the bionic muscle and the metacarpal bone and the lower edge of the first phalanx, and the bionic feather is not arranged on the naked area II. The upper edge of the metacarpal bone of the wing is full of dense dorsal bionic edge small feather 22. The metacarpal bones of the wings are also provided with a bare area III 30 without the bionic feathers. A row of bionic primary flying feather roots are arranged at the lower edge of a wing metacarpal bone, only two bionic primary flying feather I and II are shown in the figure, one side of the base part of the feather root of the bionic primary flying feather I is attached with a dorsal bionic metacarpal bone large coverage feather 31, the other side of the base part of the feather root of the bionic primary flying feather I is attached with a dorsal bionic metacarpal bone medium coverage feather 32, and the upper part of the feather root of the bionic metacarpal bone small coverage 33 is attached.

The coverage feather in the steps 1), 2), 3) and 4) are secondary coverage feather, and the coverage feather in the step 5) is primary coverage feather.

The ventral bionic feather array comprises a ventral front end array, a ventral carpal bone array, a ventral first phalanx array and a ventral metacarpal proximal end array.

6) And overall array layout of the bionic feather at the front end of the ventral side:

fig. 4 shows the layout of the bionic feather array on the ventral side of the wing, wherein the bionic secondary feathers 1-18, the bionic primary feathers I-II and the bionic winglets 34 are the bionic feathers shown in fig. 2. The ventral bionic large coverage feather 45, the ventral bionic middle coverage feather 46 and the ventral bionic small coverage feather 47 are attached to the periphery of the feather root of each bionic secondary flying feather 1-18. The first part is adjacent to the part for mounting the bionic middle covering feather, and is provided with denser ventral bionic small covering feathers 47, and the orientation of the ventral bionic small covering feathers is slightly deviated from the near end direction of the wing downwards; the second part is a naked area without any bionic feather; the third part grows sparse ventral bionic small shroud 47, and the orientation of the ventral bionic small shroud is slightly deviated from the far end direction of the wing downwards; the fourth part is the upper edge of the wing, and is provided with very dense ventral bionic edge small feathers 49 which face to the far end direction of the wing. Wherein the second portion is connected to bare area four 48.

Therefore, the wing ventral side is sparser than the bionic feather on the back side, and the bionic feather on the back side plays a greater role in the flight of the bionic aircraft.

7) And a group of bionic feather combination modes:

fig. 5 shows a combination diagram of a unit including secondary bionic flying plumes, ventral bionic large covering plumes 45, ventral bionic middle covering plumes 46 and ventral bionic small covering plumes 47, wherein the combination mode is different from the dorsal mode. Two parallel dotted lines in the figure are axial extension lines of the bionic secondary flying feather and the ventral bionic large covering feather 45, namely the two lines face the same direction, the axial included angle between the ventral bionic middle covering feather 46 and the bionic secondary flying feather is beta, and the ventral bionic middle covering feather 46 is slightly deviated to the far end direction of the wing. And the shaft diameters of the ventral bionic large coverage feather 45 and the ventral bionic middle coverage 46 are obviously smaller than those of the dorsal bionic large coverage 19 and the dorsal bionic middle coverage 20, and the shaft lengths are also obviously shorter.

8) Ventral carpal array:

as shown in fig. 4, only a small part of ventral bionic carpal coverage feather 50 is attached to the wing carpal, which is a continuation of the ventral bionic coverage feather 47 in the wing ventral bionic feather array layout, and the orientation of the ventral bionic coverage feather is slightly towards the far end direction of the wing downwards. In addition, a ventral bionic carpal plumule 51 is attached to the part which is deviated to the lower edge of the wing carpal.

9) Ventral first phalanx array:

as shown in figure 4, the upper edge of the first phalange of the wing is provided with dense ventral bionic edge small feather coating 49, the first phalange of the wing is also provided with two bare areas five 52 without any bionic feather, and the lower end of the bare areas five 52, namely the lower edge of the first phalange of the wing is provided with a few ventral bionic feather coating 53.

10) And proximal ventral metacarpal bone array:

a row of bionic primary flying feathers are arranged at the lower edge of the ventral metacarpal bone of the wing at the near end of the ventral metacarpal bone of the wing in the sequence from bottom to top, only two bionic primary flying feathers I and II are shown in figure 4, a primary bionic large covering feather 54 and a primary bionic middle covering feather 55 are grown around the root of the II bionic primary flying feathers, and the combination mode is the same as that described in figure 5. The naked area of the second part in the ventral bionic feather array layout extends all the way, and is divided into two naked areas six 56 after reaching the ventral metacarpal bone of the wing, and a small number of ventral bionic metacarpal small coverage feathers 57 are arranged between the two naked areas six 56. Dense ventral bionic edge small feathers 49 are attached to the upper edge of the ventral metacarpal bone of the wing. All ventral bionic shroud at the ventral metacarpal bone part of the wing face to the far end direction of the wing.

The feathers in the above 6), 7), 8) and 9) are bionic secondary coverage feathers, and the bionic primary coverage feathers in the above 10) are bionic primary coverage feathers.

Bionic secondary feathers in the dorsal bionic feather array and the ventral bionic feather array have the requirement of rotating two degrees of freedom around the z axis and the x axis, so the bionic secondary feathers are fixed on the bionic wing through a rotating connecting piece 37, other feathers are directly fixed on the bionic wing through bolts, the rotating connecting piece 37 comprises a first connecting pipe 38 and a second connecting pipe 39, the first connecting pipe 38 and the second connecting pipe 39 are the same in structure and are oppositely arranged, a connecting block 40 is jointly coated between the second connecting pipes 39 between the first connecting pipe 38 and the second connecting pipe 40, the first connecting pipe 38 and the connecting block 40 are respectively connected through a first columnar fixing piece 41 and a second columnar fixing piece 42, the first connecting pipe 38 is fixed with the corresponding feathers through a first bolt 43, and the second connecting pipe 39 is fixedly installed on the bionic wing through a second bolt 44.

Strong and tough bionic primary flying feathers and bionic secondary flying feathers are distributed at the rear edge of the wing area of the bionic wing, are driven by bionic muscles during flying, are driven by the bionic primary flying feathers to blast air and advance, and are the main power source of flying, and the bionic secondary flying feathers are provided with two rotational degrees of freedom rotating around the z axis and the x axis so as to adjust the lifting of the wing; the bionic wing has the advantages that the corresponding bionic small covering feathers, bionic middle covering feathers and bionic large covering feathers are sequentially distributed at the front edges of the back side and the ventral side of the wing area of the bionic wing, the bases of the bionic primary flying feathers and the bionic secondary flying feathers are covered by the whole bionic covering feathers in a covering tile shape, and the bionic wing surface is streamlined by combining the arrangement positions, the arrangement directions and the arrangement areas of the covering feathers and the bionic covering feathers at other parts, so that the air resistance during flying is greatly reduced; meanwhile, the bionic muscles on the surface of the bionic wing are protected from being damaged by the coverage of the bionic feathers.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Bionic array structure that prebird forearm district feather distributes, its characterized in that: the bionic feather array comprises a dorsal bionic feather array and a ventral bionic feather array, wherein the dorsal bionic feather array and the ventral bionic feather array are combined to form bionic feathers, the dorsal bionic feather array comprises a dorsal front end array, a dorsal carpal array, a dorsal first phalanx array and a dorsal metacarpal proximal end array, and the ventral bionic feather array comprises a ventral front end array, a ventral carpal array, a ventral first phalanx array and a ventral metacarpal proximal end array;

the bionic feather is arranged on the bionic wing, the bionic wing comprises a wing humerus, a wing radius, a wing ulna, a wing carpal bone, a wing metacarpal bone and a wing first phalanx, the bionic tendon is arranged between the near end of the wing humerus and the near end of the wing metacarpal bone, the bionic wing is covered with bionic muscle, and the bionic feather is attached to the epidermis of the bionic muscle;

the dorsal front end array comprises a plurality of secondary bionic feathers arranged at the lower edge of the dorsal side of the wing; the ventral front end array comprises a plurality of secondary bionic flywings arranged at the lower edge of the ventral side of the wing;

the bionic secondary feathers in the dorsal bionic feather array and the ventral bionic feather array are fixed on the bionic wings through a rotary connecting piece (37), the rest feathers are directly fixed on the bionic wing through bolts, the rotary connecting piece (37) comprises a first connecting pipe (38) and a second connecting pipe (39), the first connecting pipe (38) and the second connecting pipe (39) have the same structure and are oppositely arranged, a connecting block (40) is coated between the second connecting pipes (39) between the first connecting pipes (38), the first connecting pipe (38) and the connecting block (40) and the second connecting pipe (39) and the connecting block (40) are respectively connected through a first columnar fixing piece (41) and a second columnar fixing piece (42), the first connecting pipe (38) is fixed with the corresponding feather through a first bolt (43), the second connecting pipe (39) is fixedly arranged on the bionic wing through a second bolt (44).

2. The bionic array structure distributed by feathers in the forearm area of prey birds as claimed in claim 1, wherein a plurality of secondary bionic plumes are arranged along the far end of the back side of the wing to the near end of the back side of the wing in sequence, and the size of the secondary bionic plumes gradually becomes smaller, the plume of the secondary bionic plumes is arranged downwards, the base of the plume of the secondary bionic plumes is positioned on the surface of the wing and is covered and wrapped by bionic muscles, a plurality of back side bionic small covering plumes (21) are uniformly distributed on the skin between the root of the secondary bionic plumes and the bionic tendons, a plurality of back side bionic small covering plumes (21) are arranged downwards and deviated to the far end direction of the back side of the wing, a plurality of back side bionic edge small covering plumes (22) are arranged at the uppermost edge of the back side of the wing, the bionic edge small feather covers (22) on the back side are closely arranged and face the far end direction of the back side of the wing uniformly, and a first bare area (23) is arranged on the skin of the elbow joint on the back side of the wing.

3. The bionic array structure for feather distribution in the forearm area of birds with prey of claim 2, characterized in that each of said secondary bionic feathers and the back bionic large feather (19), the back bionic middle feather (20) and the back bionic small feather (21) correspondingly disposed around the root of each of said secondary bionic feathers are combined to form a unit, the base of the feather of said back bionic large feather (19) is located above the base of said secondary bionic feather and wrapped by bionic muscle, the shaft of said back bionic large feather (19) is disposed downward, said back bionic middle feather (20) is located at the other side of the base of said secondary bionic feather, and the axis of said back bionic middle feather (20) is parallel to the axis of said back bionic large feather (19).

4. The bionic array structure distributed by feathers in the forearm area of prey birds as claimed in claim 3, wherein the proximal dorsal metacarpal array comprises a row of bionic primary feathers arranged at the lower edge of dorsal metacarpal of the wing, one side of the base of each of the bionic primary feathers is attached with a large dorsal bionic metacarpal coverage feather (31), the other side is attached with a middle dorsal bionic metacarpal coverage feather (32), the upper part of the base of the bionic primary feathers is attached with a small dorsal bionic metacarpal coverage feather (33), the joint between the proximal upper edge of the dorsal metacarpal of the wing and the lower edge of the first phalanx is provided with two bare areas (29), and the skin at the joint of the dorsal metacarpal of the wing is provided with three bare areas (30).

5. The bionic array structure for feather distribution in the forearm area of birds with prey of claim 4, characterized in that the dorsal carpal array comprises bionic carpal plumes (24) attached to the dorsal carpals of the wings, dorsal bionic carpal big-coverage feathers (25), bionic carpal middle-coverage feathers (26), dorsal bionic carpal small-coverage feathers (27) and dorsal bionic edge small-coverage feathers (22) which are sequentially installed along the dorsal carpals of the wings from bottom to top, the axial diameter and the axial length of the feathers of the bionic carpal plumes (24) are smaller than those of the secondary bionic plumes, and the feathers of the dorsal bionic carpal big-coverage feathers (25), the bionic carpal middle-coverage feathers (26), the dorsal bionic carpal small-coverage feathers (27) and the dorsal bionic edge small-coverage feathers (22) face the far ends of the dorsal sides of the wings; the dorsal first phalanx array comprises a plurality of dorsal bionic phalanx cover feathers (28) and bionic winglets (34) which are attached to the first phalanx of the dorsal side of the wing, the bionic winglets (34) are arranged along the lower edge of the first phalanx of the dorsal side of the wing, and a plurality of dorsal bionic edge winglets (22) are attached to the upper edge of the first phalanx of the dorsal side of the wing.

6. The bionic array structure distributed by feathers in the forearm area of prey birds as claimed in claim 5, wherein a plurality of secondary bionic flying feathers are sequentially arranged from the far end of the ventral side of the wing to the near end of the wing, the size of the secondary bionic flying feathers gradually decreases, the shafts of the secondary bionic flying feathers are arranged downwards, the base of the feather root of the secondary bionic flying feathers is positioned on the surface of the ventral side of the wing and is covered and wrapped by bionic muscles, the root of each secondary bionic flying feather is adhered with ventral bionic large covering feathers (45), ventral bionic middle covering feathers (46) and ventral bionic small covering feathers (47), the ventral bionic small covering feathers (47) are arranged downwards and deviated from the far end direction of the wing, a first area, a second area, a third area and a fourth area are sequentially arranged from bottom to top between the base of the feather root of the secondary bionic flying feathers and the upper end of the ventral side of the wing, and a first area, a second area, a third area, a fourth area, a second area, a third area, a fourth area, a third area, a fourth area, a second area, a third area, a fourth area, a second area, a third area, a fourth area, a second area, a fourth area, a second area, a fourth area, a third area, a fourth area, a second area, a fourth area, All install a plurality of bionical small of ventral cover feather (47) in the third region, the intensity that bionical small of ventral cover feather (47) of ventral in the first region were arranged is greater than the intensity that bionical small of ventral cover feather (47) of ventral in the third region were arranged, install bionical marginal small of ventral cover feather (49) in the fourth region, bionical marginal small of ventral cover feather (49) of ventral sets up towards wing ventral distal end direction, cover feather (46) adjacent setting in first region and the ventral are bionical, the second region is naked bionical muscle, and wing ventral elbow joint department is equipped with naked district four (48) that are connected with the second region.

7. The bionic array structure for feather distribution in the forearm area of prey birds as claimed in claim 6, wherein said secondary bionic flying feathers, said ventral bionic large covering feathers (45), said ventral bionic middle covering feathers (46), and said ventral bionic small covering feathers (47) are combined to form a unit, the vane shafts of said secondary bionic flying feathers and the vane shafts of said ventral bionic large covering feathers (45) are oriented in the same direction, said ventral bionic middle covering feathers (46) and said secondary bionic flying feathers are inclined, the vane shafts of said ventral bionic middle covering feathers (46) are deflected to the far end direction of vane ventral side, the vane shafts of said ventral bionic large covering feathers (45) and said ventral bionic middle covering feathers (46) are smaller than the vane shafts of said dorsal bionic large covering feathers (19) and dorsal bionic middle covering feathers (20).

8. The bionic array structure for feather distribution in forearms of birds of prey of claim 7, characterized in that the ventral carpal array comprises ventral bionic carpal wing small covering feathers (50) installed on ventral carpal wings, the ventral bionic carpal wing small covering feathers (50) are the continuation of the ventral bionic small covering feathers (47), the feather axis of the ventral bionic carpal wing small covering feathers (50) is arranged towards the far end direction of the ventral side of the wing downwards and in a biased way, the ventral bionic carpal wing large covering feathers (51) are installed at the lower edge of the ventral carpal wings, the ventral first phalanx array comprises ventral bionic edge small covering feathers (49) installed at the upper edge of the first phalanx of the ventral side of the wing, two bare area five (52) are arranged on the first phalanx of the ventral side of the wing, and ventral bionic phalanx covering feathers (53) are installed at the lower edge of the first phalanx of the ventral side of the wing.

9. The bionic array structure for feather distribution in the forearm area of prey birds as claimed in claim 8, wherein the ventral metacarpal proximal end array comprises a plurality of bionic primary flying feathers, each bionic primary flying feather is provided with a primary bionic covering feather (54) and a primary bionic covering feather (55) around the feather root, the bare area in the second area is divided into six (56) in two bundles of bare areas at the position of the metacarpal bone of the wing, a ventral bionic covering feather (57) is arranged between the six (56) in two bundles of bare areas, a ventral bionic edge covering feather (49) is arranged at the upper edge of the ventral metacarpal bone of the wing, and the ventral bionic edge covering feather (49), the primary bionic covering feather (54), the primary bionic covering feather (55) and the ventral bionic covering feather (57) are all arranged towards the far end direction of the ventral side of the wing.