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WO2023026662A1 - Skin member and blade structure - Google Patents

Skin member and blade structure Download PDF

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Publication number
WO2023026662A1
WO2023026662A1 PCT/JP2022/025121 JP2022025121W WO2023026662A1 WO 2023026662 A1 WO2023026662 A1 WO 2023026662A1 JP 2022025121 W JP2022025121 W JP 2022025121W WO 2023026662 A1 WO2023026662 A1 WO 2023026662A1
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WIPO (PCT)
Prior art keywords
skin
skin member
rod
framework
resin
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.)
Ceased
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PCT/JP2022/025121
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French (fr)
Japanese (ja)
Inventor
健太郎 新藤
浩司 江崎
界 刈込
晃久 奥田
篤 湯下
望 川節
正博 別所
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Publication date
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Publication of WO2023026662A1 publication Critical patent/WO2023026662A1/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C3/00—Wings
    • B64C3/26—Construction, shape, or attachment of separate skins, e.g. panels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present disclosure relates to skin members and wing structures.
  • aircraft wings are required to be lighter.
  • a conventional lightweight structure there is a structure in which a sheet material is attached to the ribs.
  • the sheet material is likely to be deformed out of plane, resulting in poor durability for long-term use.
  • Patent Document 1 discloses the structure of a wind turbine blade. According to this structure, the ribs, cross members, and spar members are covered with skin panels made of glass fiber or the like.
  • the sandwich structure is a structure in which a core material such as balsa or foam material is sandwiched between fiber reinforced resins.
  • the weight of the wing becomes a problem, and a structure that is lightweight but has sufficient strength is desired.
  • the present disclosure has been made in view of such circumstances, and an object thereof is to provide a skin member and a wing structure that are lightweight and yet have sufficient strength.
  • a skin member according to an aspect of the present disclosure is a skin member that forms an outer panel of a structure, and includes a lattice-like frame member that forms the shape of the outer panel and a flexible structure that is provided on the surface of the frame member. and a film material having properties.
  • a wing structure includes the skin member described above, and the frame material of the skin member follows the shape of the outer plate of the wing.
  • a skin member and a wing structure that are lightweight but have sufficient strength.
  • FIG. 1 is a perspective view showing a configuration of a wing structure according to an embodiment of the present disclosure
  • FIG. 1 is a cross-sectional view of a wing structure according to one embodiment of the present disclosure
  • FIG. 1 is a skin member according to an embodiment of the present disclosure
  • 4 is a cross-sectional view of the skin member taken along section line IV-IV shown in FIG. 3
  • FIG. 10 is a cross-sectional view of a skin member according to a modification
  • the skin member 100 is a member that forms the outer plate of the structure.
  • structures include aircraft wings, wind turbines used for renewable energy generation, and wings for tidal current power generation. Examples are not limiting. In the following, as shown in FIGS. 1 and 2, a wing structure 10 as a structure will be described as an example.
  • Wing structure 10 is a known streamlined structure applicable, for example, to an aircraft wing.
  • Wing structure 10 includes a skin member 100 .
  • the skin member 100 forms the outer skin of the streamlined airfoil structure 10 .
  • the skin member 100 is formed to follow the streamline shape, so that the skin member 100 constitutes the outer shell of the wing structure 10 having a space inside.
  • the skin member 100 has a framework material 110 and a membrane material 120. As shown in FIGS. 1 and 3, the skin member 100 has a framework material 110 and a membrane material 120. As shown in FIGS. 1 and 3, the skin member 100 has a framework material 110 and a membrane material 120. As shown in FIGS. 1 and 3, the skin member 100 has a framework material 110 and a membrane material 120. As shown in FIGS. 1 and 3, the skin member 100 has a framework material 110 and a membrane material 120.
  • the framework member 110 is configured by combining a plurality of rod members in a grid pattern.
  • the plurality of rod members are divided into first rod members 111 and second rod members 112 , which are appropriately intersected to form the framework member 110 by being combined in a grid pattern.
  • the lattice has, for example, a diagonal distance of 20 mm to 200 mm (for example, about 50 mm).
  • the first rod member 111 is a rod-shaped member (for example, a 5 mm square rod-shaped member) extending in a predetermined direction.
  • the predetermined direction preferably coincides with, for example, the wingspan direction.
  • the first rod member 111 is preferably made of a material having high rigidity (flexural rigidity and torsional rigidity).
  • the material include fiber reinforced resin such as carbon fiber reinforced resin (CFRP).
  • CFRP carbon fiber reinforced resin
  • the carbon fiber may be PAN-based or pitch-based, or may be used in combination.
  • the second rod member 112 is a rod-shaped member (for example, a 5 mm square rod-shaped member) that intersects the first rod member 111 .
  • the second rod member 112 intersects the first rod member 111 at, for example, ⁇ 45 degrees.
  • the second rod material 112 is made of the same material as the first rod material 111 .
  • the framework member 110 having excellent bending rigidity and torsional rigidity is constructed.
  • the framework member 110 referred to here is, macroscopically, itself formed in a shell-like shape like an outer panel, unlike the conventional lightweight ribs and spars.
  • the framework material 110 is provided with a thin film material 120 so as to cover the surface thereof.
  • the film material 120 is adhered to the surface of the framework material 110 by, for example, an epoxy resin-based adhesive.
  • the film material 120 is preferably made of a light material with excellent flexibility and strength.
  • the material is exemplified by one or a combination of resin film material, cloth material, and cloth material impregnated with resin.
  • resins for film materials include polyvinyl chloride, polycarbonate, polyethylene terephthalate, fluororesin, and polyimide.
  • cloth materials include those in which ultra-high molecular weight polyethylene fibers are woven and those in which polyarylate fibers are woven.
  • Examples of materials in which resin is impregnated in cloth include CFRP, glass fiber reinforced resin (GFRP), and fluororesin-impregnated glass cloth.
  • the skin member 100 forming the outer plate of the wing structure 10 is constructed.
  • the wing structure 10 may include a spar 200 and a reinforcing member 300 as shown in FIGS. 1 and 2 .
  • the spar 200 is a reinforcing member provided in the space defined by the skin member 100 and extending in the spanwise direction, and is connected to the skin member 100 in the thickness direction of the wing structure 10 .
  • the spar 200 employs a sandwich structure in which a core material such as balsa or foam material is sandwiched between GFRP.
  • Reinforcing member 300 is a member provided along skin member 100 in the vicinity of the connecting portion between spar 200 and skin member 100 .
  • the reinforcing member 300 is made of CFRP, for example.
  • the following effects are obtained. Since it is provided with the grid-like framework material 110 that forms the shape of the outer plate and the membrane material 120 having flexibility provided on the surface of the framework material 110, it can correspond to the shape of the outer plate of the wing structure 10.
  • the skin member 100 itself may be reinforced by the scaffolding material 110 .
  • out-of-plane deformation can be suppressed and the durability can be improved compared to a structure in which the shape of the outer plate of the structure is formed only from the sheet material.
  • the framework material 110 is lattice-like and has a low density, it is possible to suppress an increase in the weight of the structure compared to a structure using skin members of a sandwich structure using a core material.
  • the framework member 110 has a first rod member 111 extending in a predetermined direction and a second rod member 112 crossing and connected to the first rod member 111, the framework member The shape of 110 itself can improve bending and torsional stiffness.
  • the second rod member 112 intersects the first rod member 111 at ⁇ 45 degrees, the shape of the framework member 110 that is optimal for bending rigidity and torsional rigidity can be adopted.
  • the material of the framework material 110 is a fiber-reinforced resin, it is possible to reduce the weight while ensuring the strength of the framework material 110 .
  • the material of the film material 120 is one or a combination of a resin film material, a cloth material, and a material in which resin is impregnated in the cloth material, the strength of the film material 120 is secured and the weight is reduced. can be realized.
  • the frame material 110 is provided with a thin back surface film material 130 along the shape (unevenness or the like) of the back surface.
  • the back surface film material 130 is adhered to the rear surface of the framework material 110 and the rear surface of the film material 120 with, for example, an epoxy resin adhesive.
  • the back surface film material 130 is preferably made of a light material having excellent flexibility and strength.
  • the material include any one or a combination of resin film material, cloth material, and cloth material impregnated with resin. However, it is not necessary to use the same material for the film material 120 and the back film material 130, and different materials may be combined.
  • the framework material 110 and the film material can be fixed more firmly. Moreover, the strength of the skin member 100 can be improved.
  • a skin member (100) is a skin member that forms a skin of a structure (10), and includes a lattice-like frame material (110) that forms the shape of the skin, and a frame material. and a flexible film material (120) provided on the surface of (110).
  • the skin member is a skin member that forms the outer plate of a structure, and has a lattice-like frame member that forms the shape of the outer plate and flexibility provided on the surface of the frame member. Since the membrane member is provided, the skin member itself corresponding to the shape of the outer plate of the structure can be reinforced by the framework member. As a result, out-of-plane deformation can be suppressed and the durability can be improved compared to a structure in which the shape of the outer plate of the structure is formed only from the sheet material. In addition, since the framework material is lattice-like and has a low density, it is possible to suppress an increase in the weight of the structure compared to a structure using skin members of a sandwich structure using a core material.
  • the frame member includes a first rod member (111) extending in a predetermined direction and a second rod member (111) crossing and connected to the first rod member ( 112) and.
  • the framework member has the first rod member extending in the predetermined direction and the second rod member crossing and connected to the first rod member. Therefore, the bending rigidity and torsional rigidity can be improved by the shape of the frame material itself.
  • the second rod material intersects the first rod material at ⁇ 45 degrees.
  • the second rod member intersects the first rod member at ⁇ 45 degrees, it is possible to adopt the shape of the framework member that is optimal for bending rigidity and torsional rigidity. .
  • the material of the framework material is fiber reinforced resin.
  • CFRP CFRP etc. are illustrated as fiber reinforced resin.
  • CFRP carbon fibers may be PAN-based or pitch-based, or may be used in combination.
  • the material of the film material is any one of a resin film material, a cloth material, and a material obtained by impregnating a cloth material with a resin, or a combination thereof.
  • the material of the membrane material is any one or a combination of resin film material, cloth material, and cloth material impregnated with resin. It is possible to achieve weight reduction while ensuring
  • the resin for the film material include polyvinyl chloride, polycarbonate, polyethylene terephthalate, fluororesin, and polyimide.
  • the cloth material include those in which ultra-high-molecular-weight polyethylene fibers are woven and those in which polyarylate-based fibers are woven.
  • GFRP, CFRP, fluororesin-impregnated glass cloth, etc. are exemplified as materials in which resin is impregnated in cloth material.
  • the skin member according to one aspect of the present disclosure includes a back surface membrane material (130) provided on the back surface of the framework material.
  • the back surface membrane material having flexibility is provided on the back surface of the framework material, the framework material and the membrane material (including the back surface membrane material) are fixed more firmly. be able to. Also, the strength of the skin member can be improved.
  • the material of the back surface film material is any one or combination of resin film material, cloth material, and cloth material impregnated with resin.
  • the material of the back surface film material is any one or a combination of a resin film material, a cloth material, and a material obtained by impregnating a cloth material with a resin. It is possible to achieve weight reduction while ensuring the strength of
  • a wing structure includes the skin member according to any one of the aspects described above, and the framework material of the skin member follows the shape of the outer plate of the wing.
  • the skin member according to any one of the aspects described above is provided, and the framework material of the skin member follows the shape of the outer plate of the wing. structure can be provided.
  • This wing structure is used, for example, in aircraft wings, large windmills used for renewable energy power generation, and tidal current power generation wings.
  • Wing structure 100 skin member 110 frame member 111 first rod member 112 second rod member 120 membrane member 130 back membrane member 200 spar 300 reinforcing member

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention provides a skin member and a blade structure which are lightweight yet ensure strength. A skin member (100) forms an outer plate of the blade structure, and comprises: a lattice-like framework material (110) forming the shape of the outer plate; and a flexible film material (120) disposed on a surface of the framework material (110). Moreover, the framework material (110) includes: first rod members (111) extending in a prescribed direction; and second rod members (112) that cross and connect to the first rod members (111). Furthermore, the second rod members (112) cross the first rod members (111) at an angle of ±45°.

Description

スキン部材及び翼構造Skin member and wing structure

　本開示は、スキン部材及び翼構造に関する。 The present disclosure relates to skin members and wing structures.

　例えば航空機の翼には軽量化が求められている。従来からある軽量構造としては、リブにシート材を貼り付けた構造がある。しかしながら、この構造ではシート材が面外変形しやすいので、長時間の使用に対する耐久性に乏しい。 For example, aircraft wings are required to be lighter. As a conventional lightweight structure, there is a structure in which a sheet material is attached to the ribs. However, in this structure, the sheet material is likely to be deformed out of plane, resulting in poor durability for long-term use.

　また、航空機の翼ではないが、特許文献１には、風力タービンブレードの構造が開示されている。この構造によれば、リブ、交差部材、翼桁部材をガラス繊維等で形成されたスキンパネルで覆うこととしている。 Although not an aircraft wing, Patent Document 1 discloses the structure of a wind turbine blade. According to this structure, the ribs, cross members, and spar members are covered with skin panels made of glass fiber or the like.

　この他、強度確保のためにサンドイッチ構造のスキンを採用する翼も存在する。ここで、サンドイッチ構造とは、バルサや発泡材等のコア材を繊維強化樹脂で挟み込んだ構造である。 In addition, there are wings that use a sandwich-structured skin to ensure strength. Here, the sandwich structure is a structure in which a core material such as balsa or foam material is sandwiched between fiber reinforced resins.

特表２０１０－５２２３０７号公報Japanese Patent Publication No. 2010-522307

　いずれの構造であっても、翼を大型化する場合には翼の重量化が問題となり、軽量でありながら強度が確保された構造が望まれる。 Regardless of the structure, if the wing is made larger, the weight of the wing becomes a problem, and a structure that is lightweight but has sufficient strength is desired.

　本開示は、このような事情に鑑みてなされたものであって、軽量でありながら強度が確保されたスキン部材及び翼構造を提供することを目的とする。 The present disclosure has been made in view of such circumstances, and an object thereof is to provide a skin member and a wing structure that are lightweight and yet have sufficient strength.

　上記課題を解決するために、本開示のスキン部材及び翼構造は以下の手段を採用する。
　本開示の一態様に係るスキン部材は、構造物の外板を形成するスキン部材であって、前記外板の形状を構成する格子状の骨組材と、該骨組材の表面に設けられた柔軟性を有する膜材と、を備えている。 In order to solve the above problems, the skin member and wing structure of the present disclosure employ the following means.
A skin member according to an aspect of the present disclosure is a skin member that forms an outer panel of a structure, and includes a lattice-like frame member that forms the shape of the outer panel and a flexible structure that is provided on the surface of the frame member. and a film material having properties.

　また、本開示の一態様に係る翼構造は、上記のスキン部材を備え、前記スキン部材の前記骨組材が翼の外板の形状に倣っている。 Further, a wing structure according to an aspect of the present disclosure includes the skin member described above, and the frame material of the skin member follows the shape of the outer plate of the wing.

　本開示によれば、軽量でありながら強度が確保されたスキン部材及び翼構造を提供することができる。 According to the present disclosure, it is possible to provide a skin member and a wing structure that are lightweight but have sufficient strength.

本開示の一実施形態に係る翼構造の構成を示す斜視図である。1 is a perspective view showing a configuration of a wing structure according to an embodiment of the present disclosure; FIG. 本開示の一実施形態に係る翼構造の横断面図である。1 is a cross-sectional view of a wing structure according to one embodiment of the present disclosure; FIG. 本開示の一実施形態に係るスキン部材である。1 is a skin member according to an embodiment of the present disclosure; 図３に示す切断線ＩＶ－ＩＶにおけるスキン部材の断面図である。4 is a cross-sectional view of the skin member taken along section line IV-IV shown in FIG. 3; FIG. 変形例に係るスキン部材の断面図である。FIG. 10 is a cross-sectional view of a skin member according to a modification;

　　以下、本開示の一実施形態に係るスキン部材及び翼構造について図面を参照して説明する。 A skin member and a wing structure according to an embodiment of the present disclosure will be described below with reference to the drawings.

　スキン部材１００は、構造物の外板を形成する部材である。
　構造物としては、航空機の翼や再生可能エネルギー発電に用いられる風車や潮流発電などの翼が例示されるが、軽量でありながら強度が確保された外板が要求される構造物であればこの例示に限定されない。
　以下では、図１及び図２に示すように、構造物としての翼構造１０を例にして説明する。 The skin member 100 is a member that forms the outer plate of the structure.
Examples of structures include aircraft wings, wind turbines used for renewable energy generation, and wings for tidal current power generation. Examples are not limiting.
In the following, as shown in FIGS. 1 and 2, a wing structure 10 as a structure will be described as an example.

　翼構造１０は、例えば航空機の翼に適用可能な既知の流線形状とされた構造物である。
　翼構造１０は、スキン部材１００を備えている。 Wing structure 10 is a known streamlined structure applicable, for example, to an aircraft wing.
Wing structure 10 includes a skin member 100 .

　スキン部材１００は、流線形状とされた翼構造１０の外板を形成している。
　言い換えれば、スキン部材１００が流線形状に倣うように形成されることで、内部に空間を有する翼構造１０の外殻がスキン部材１００によって構成されることになる。 The skin member 100 forms the outer skin of the streamlined airfoil structure 10 .
In other words, the skin member 100 is formed to follow the streamline shape, so that the skin member 100 constitutes the outer shell of the wing structure 10 having a space inside.

　図１及び図３に示すように、スキン部材１００は、骨組材１１０及び膜材１２０を有している。 As shown in FIGS. 1 and 3, the skin member 100 has a framework material 110 and a membrane material 120. As shown in FIGS.

　骨組材１１０は、複数のロッド材が格子状に組み合わされて構成されている。
　例えば、複数のロッド材は、第１ロッド材１１１と第２ロッド材１１２とに区別され、それらが適切に交差することで格子状に組み合わされて骨組材１１０を構成する。
　格子は、例えば対角線の距離が２０ｍｍ～２００ｍｍ（例えば５０ｍｍ程度）とされている。 The framework member 110 is configured by combining a plurality of rod members in a grid pattern.
For example, the plurality of rod members are divided into first rod members 111 and second rod members 112 , which are appropriately intersected to form the framework member 110 by being combined in a grid pattern.
The lattice has, for example, a diagonal distance of 20 mm to 200 mm (for example, about 50 mm).

　第１ロッド材１１１は、所定方向に延在する棒状の部材（例えば５ｍｍ角の棒状の部材）である。ここで、所定方向は、例えは翼長方向に一致することが好ましい。 The first rod member 111 is a rod-shaped member (for example, a 5 mm square rod-shaped member) extending in a predetermined direction. Here, the predetermined direction preferably coincides with, for example, the wingspan direction.

　第１ロッド材１１１は、高い剛性（曲げ剛性やねじり剛性）を有している材料から形成されることが好ましい。材料としては、炭素繊維強化樹脂（ＣＦＲＰ）等の繊維強化樹脂が例示される。炭素繊維は、ＰＡＮ系でもピッチ系でもよく、それらを併用してもよい。 The first rod member 111 is preferably made of a material having high rigidity (flexural rigidity and torsional rigidity). Examples of the material include fiber reinforced resin such as carbon fiber reinforced resin (CFRP). The carbon fiber may be PAN-based or pitch-based, or may be used in combination.

　第２ロッド材１１２は、第１ロッド材１１１に対して交差する棒状の部材（例えば５ｍｍ角の棒状の部材）である。第２ロッド材１１２は、第１ロッド材１１１に対して、例えば±４５度に交差している。
　第２ロッド材１１２は、第１ロッド材１１１と同一の材料によって形成されている。 The second rod member 112 is a rod-shaped member (for example, a 5 mm square rod-shaped member) that intersects the first rod member 111 . The second rod member 112 intersects the first rod member 111 at, for example, ±45 degrees.
The second rod material 112 is made of the same material as the first rod material 111 .

　第１ロッド材１１１及び第２ロッド材１１２がこのようにして組み合わされることで、曲げ剛性およびねじり剛性に優れた骨組材１１０が構成されることになる。 By combining the first rod member 111 and the second rod member 112 in this manner, the framework member 110 having excellent bending rigidity and torsional rigidity is constructed.

　なお、ここでいう骨組材１１０は、従来からある軽量構造のリブやスパーとは異なり、巨視的にみれば、それ自体が外板のようなシェル状に形成されるものである。 It should be noted that the framework member 110 referred to here is, macroscopically, itself formed in a shell-like shape like an outer panel, unlike the conventional lightweight ribs and spars.

　図４に示すように、骨組材１１０には、その表面を覆うように薄い膜材１２０が設けられている。
　膜材１２０は、例えばエポキシ樹脂系の接着剤によって骨組材１１０の表面に接着される。 As shown in FIG. 4, the framework material 110 is provided with a thin film material 120 so as to cover the surface thereof.
The film material 120 is adhered to the surface of the framework material 110 by, for example, an epoxy resin-based adhesive.

　膜材１２０は、柔軟性と強度に優れた軽い材料によって形成されることが好ましい。材料としては、樹脂製のフィルム材、布材及び布材に樹脂を含侵させた材料のいずれか又は組合せが例示される。 The film material 120 is preferably made of a light material with excellent flexibility and strength. The material is exemplified by one or a combination of resin film material, cloth material, and cloth material impregnated with resin.

　フィルム材の樹脂としては、ポリ塩化ビニル、ポリカーボネート、ポリエチレンテレフタラート、フッ素樹脂、ポリイミド等が例示される。 Examples of resins for film materials include polyvinyl chloride, polycarbonate, polyethylene terephthalate, fluororesin, and polyimide.

　布材としては、超高分子量ポリエチレン繊維を編み込んだものやポリアリレート系繊維を編み込んだものが例示される。 Examples of cloth materials include those in which ultra-high molecular weight polyethylene fibers are woven and those in which polyarylate fibers are woven.

　布材に樹脂を含侵させた材料としては、ＣＦＲＰ、ガラス繊維強化樹脂（ＧＦＲＰ）、フッ素樹脂含浸ガラスクロス等が例示される。 Examples of materials in which resin is impregnated in cloth include CFRP, glass fiber reinforced resin (GFRP), and fluororesin-impregnated glass cloth.

　このようにして、翼構造１０の外板を形成するスキン部材１００が構成されている。
　なお、図１及び図２に示すように、翼構造１０は、スパー２００及び補強部材３００を備えていてもよい。 In this manner, the skin member 100 forming the outer plate of the wing structure 10 is constructed.
Note that the wing structure 10 may include a spar 200 and a reinforcing member 300 as shown in FIGS. 1 and 2 .

　スパー２００は、スキン部材１００によって画定された空間に設けられ翼長方向に延在している補強用の部材であって、翼構造１０の翼厚方向においてスキン部材１００と接続されている。
　スパー２００には、例えばバルサや発泡材等のコア材をＧＦＲＰで挟み込んだサンドイッチ構造が採用さてれている。 The spar 200 is a reinforcing member provided in the space defined by the skin member 100 and extending in the spanwise direction, and is connected to the skin member 100 in the thickness direction of the wing structure 10 .
The spar 200 employs a sandwich structure in which a core material such as balsa or foam material is sandwiched between GFRP.

　補強部材３００は、スパー２００とスキン部材１００との接続部の近傍においてスキン部材１００に沿うように設けられた部材である。
　補強部材３００は、例えばＣＦＲＰによって形成されている。 Reinforcing member 300 is a member provided along skin member 100 in the vicinity of the connecting portion between spar 200 and skin member 100 .
The reinforcing member 300 is made of CFRP, for example.

　本実施形態によれば、以下の効果を奏する。
　外板の形状を構成する格子状の骨組材１１０と、骨組材１１０の表面に設けられた柔軟性を有する膜材１２０と、を備えているので、翼構造１０の外板の形状に対応するスキン部材１００自体を骨組材１１０によって強化することができる。これによって、シート材のみで構造物の外板の形状を形成した構造に比べて面外変形を押さえることができ耐久性を向上させられる。
　また、骨組材１１０は格子状とされ密度が小さいため、コア材を用いたサンドイッチ構造のスキン部材を用いた構造に比べて構造物の重量の増加を抑制できる。 According to this embodiment, the following effects are obtained.
Since it is provided with the grid-like framework material 110 that forms the shape of the outer plate and the membrane material 120 having flexibility provided on the surface of the framework material 110, it can correspond to the shape of the outer plate of the wing structure 10. The skin member 100 itself may be reinforced by the scaffolding material 110 . As a result, out-of-plane deformation can be suppressed and the durability can be improved compared to a structure in which the shape of the outer plate of the structure is formed only from the sheet material.
In addition, since the framework material 110 is lattice-like and has a low density, it is possible to suppress an increase in the weight of the structure compared to a structure using skin members of a sandwich structure using a core material.

　また、骨組材１１０は、所定方向に延在する第１ロッド材１１１と、第１ロッド材１１１に対して交差して接続された第２ロッド材１１２と、を有しているので、骨組材１１０の形状自体で曲げ剛性及びねじり剛性を向上させられる。 In addition, since the framework member 110 has a first rod member 111 extending in a predetermined direction and a second rod member 112 crossing and connected to the first rod member 111, the framework member The shape of 110 itself can improve bending and torsional stiffness.

　また、第２ロッド材１１２は、第１ロッド材１１１に対して±４５度に交差しているので、曲げ剛性及びねじり剛性に最適な骨組材１１０の形状を採ることができる。 In addition, since the second rod member 112 intersects the first rod member 111 at ±45 degrees, the shape of the framework member 110 that is optimal for bending rigidity and torsional rigidity can be adopted.

　また、骨組材１１０の材料は、繊維強化樹脂とされているので、骨組材１１０の強度を確保しつつ軽量化を実現できる。 In addition, since the material of the framework material 110 is a fiber-reinforced resin, it is possible to reduce the weight while ensuring the strength of the framework material 110 .

　また、膜材１２０の材料は、樹脂製のフィルム材、布材及び布材に樹脂を含侵させた材料のいずれか又は組合せとされているので、膜材１２０の強度を確保しつつ軽量化を実現できる。 In addition, since the material of the film material 120 is one or a combination of a resin film material, a cloth material, and a material in which resin is impregnated in the cloth material, the strength of the film material 120 is secured and the weight is reduced. can be realized.

［変形例］
　図５に示すように、骨組材１１０には、その裏面の形状（凹凸等）に沿うように薄い裏面膜材１３０が設けられている。
　裏面膜材１３０は、例えばエポキシ樹脂系の接着剤によって骨組材１１０の裏面及び膜材１２０の裏面に接着される。 [Modification]
As shown in FIG. 5, the frame material 110 is provided with a thin back surface film material 130 along the shape (unevenness or the like) of the back surface.
The back surface film material 130 is adhered to the rear surface of the framework material 110 and the rear surface of the film material 120 with, for example, an epoxy resin adhesive.

　裏面膜材１３０は、膜材１２０と同様、柔軟性と強度に優れた軽い材料によって形成されることが好ましい。材料としては、樹脂製のフィルム材、布材及び布材に樹脂を含侵させた材料のいずれか又は組合せが例示される。
　ただし、膜材１２０と裏面膜材１３０とを同じ材料にする必要はなく、別材料を組み合わせてもよい。 Like the film material 120, the back surface film material 130 is preferably made of a light material having excellent flexibility and strength. Examples of the material include any one or a combination of resin film material, cloth material, and cloth material impregnated with resin.
However, it is not necessary to use the same material for the film material 120 and the back film material 130, and different materials may be combined.

　以上の構成によれば、骨組材１１０と膜材（裏面膜材１３０を含む）とをより強固に固定することができる。
　また、スキン部材１００の強度を向上させられる。 According to the above configuration, the framework material 110 and the film material (including the back surface film material 130) can be fixed more firmly.
Moreover, the strength of the skin member 100 can be improved.

　以上の通り説明した一実施形態は、例えば以下のように把握される。
　本開示の一態様に係るスキン部材（１００）は、構造物（１０）の外板を形成するスキン部材であって、外板の形状を構成する格子状の骨組材（１１０）と、骨組材（１１０）の表面に設けられた柔軟性を有する膜材（１２０）と、を備えている。 One embodiment explained as above is grasped as follows, for example.
A skin member (100) according to an aspect of the present disclosure is a skin member that forms a skin of a structure (10), and includes a lattice-like frame material (110) that forms the shape of the skin, and a frame material. and a flexible film material (120) provided on the surface of (110).

　本態様に係るスキン部材によれば、構造物の外板を形成するスキン部材であって、外板の形状を構成する格子状の骨組材と、骨組材の表面に設けられた柔軟性を有する膜材と、を備えているので、構造物の外板の形状に対応するスキン部材自体を骨組材によって強化することができる。これによって、シート材のみで構造物の外板の形状を形成した構造に比べて面外変形を押さえることができ耐久性を向上させられる。また、骨組材は格子状とされ密度が小さいため、コア材を用いたサンドイッチ構造のスキン部材を用いた構造に比べて構造物の重量の増加を抑制できる。 According to the skin member according to this aspect, the skin member is a skin member that forms the outer plate of a structure, and has a lattice-like frame member that forms the shape of the outer plate and flexibility provided on the surface of the frame member. Since the membrane member is provided, the skin member itself corresponding to the shape of the outer plate of the structure can be reinforced by the framework member. As a result, out-of-plane deformation can be suppressed and the durability can be improved compared to a structure in which the shape of the outer plate of the structure is formed only from the sheet material. In addition, since the framework material is lattice-like and has a low density, it is possible to suppress an increase in the weight of the structure compared to a structure using skin members of a sandwich structure using a core material.

　また、本開示の一態様に係るスキン部材において、骨組材は、所定方向に延在する第１ロッド材（１１１）と、第１ロッド材に対して交差して接続された第２ロッド材（１１２）と、を有している。 In addition, in the skin member according to one aspect of the present disclosure, the frame member includes a first rod member (111) extending in a predetermined direction and a second rod member (111) crossing and connected to the first rod member ( 112) and.

　本態様に係るスキン部材によれば、骨組材は、所定方向に延在する第１ロッド材と、第１ロッド材に対して交差して接続された第２ロッド材と、を有しているので、骨組材の形状自体で曲げ剛性及びねじり剛性を向上させられる。 According to the skin member according to this aspect, the framework member has the first rod member extending in the predetermined direction and the second rod member crossing and connected to the first rod member. Therefore, the bending rigidity and torsional rigidity can be improved by the shape of the frame material itself.

　また、本開示の一態様に係るスキン部材において、第２ロッド材は、第１ロッド材に対して±４５度で交差している。 In addition, in the skin member according to one aspect of the present disclosure, the second rod material intersects the first rod material at ±45 degrees.

　本態様に係るスキン部材によれば、第２ロッド材は、第１ロッド材に対して±４５度で交差しているので、曲げ剛性及びねじり剛性に最適な骨組材の形状を採ることができる。 According to the skin member according to this aspect, since the second rod member intersects the first rod member at ±45 degrees, it is possible to adopt the shape of the framework member that is optimal for bending rigidity and torsional rigidity. .

　また、本開示の一態様に係るスキン部材において、骨組材の材料は、繊維強化樹脂とされている。 Also, in the skin member according to one aspect of the present disclosure, the material of the framework material is fiber reinforced resin.

　本態様に係るスキン部材によれば、骨組材の材料は、繊維強化樹脂とされているので、骨組材の強度を確保しつつ軽量化を実現できる。
　繊維強化樹脂としては、ＣＦＲＰ等が例示される。ＣＦＲＰの炭素繊維は、ＰＡＮ系でもピッチ系でもよく、それらを併用してもよい。 According to the skin member according to this aspect, since the material of the framework material is the fiber-reinforced resin, weight reduction can be achieved while ensuring the strength of the framework material.
CFRP etc. are illustrated as fiber reinforced resin. CFRP carbon fibers may be PAN-based or pitch-based, or may be used in combination.

　また、本開示の一態様に係るスキン部材において、膜材の材料は、樹脂製のフィルム材、布材及び布材に樹脂を含侵させた材料のいずれか、又は、それらの組合せとされている。 Further, in the skin member according to an aspect of the present disclosure, the material of the film material is any one of a resin film material, a cloth material, and a material obtained by impregnating a cloth material with a resin, or a combination thereof. there is

　本態様に係るスキン部材によれば、膜材の材料は、樹脂製のフィルム材、布材及び布材に樹脂を含侵させた材料のいずれか又は組合せとされているので、膜材の強度を確保しつつ軽量化を実現できる。
　フィルム材の樹脂としては、ポリ塩化ビニル、ポリカーボネート、ポリエチレンテレフタラート、フッ素樹脂、ポリイミド等が例示される。
　布材としては、超高分子量ポリエチレン繊維を編み込んだものやポリアリレート系繊維を編み込んだものが例示される。
　布材に樹脂を含侵させた材料としては、ＧＦＲＰ、ＣＦＲＰ、フッ素樹脂含浸ガラスクロス等が例示される。 According to the skin member according to this aspect, the material of the membrane material is any one or a combination of resin film material, cloth material, and cloth material impregnated with resin. It is possible to achieve weight reduction while ensuring
Examples of the resin for the film material include polyvinyl chloride, polycarbonate, polyethylene terephthalate, fluororesin, and polyimide.
Examples of the cloth material include those in which ultra-high-molecular-weight polyethylene fibers are woven and those in which polyarylate-based fibers are woven.
GFRP, CFRP, fluororesin-impregnated glass cloth, etc. are exemplified as materials in which resin is impregnated in cloth material.

　また、本開示の一態様に係るスキン部材は、骨組材の裏面に設けられた裏面膜材（１３０）を備えている。 In addition, the skin member according to one aspect of the present disclosure includes a back surface membrane material (130) provided on the back surface of the framework material.

　本態様に係るスキン部材によれば、骨組材の裏面に設けられた柔軟性を有する裏面膜材を備えているので、骨組材と膜材（裏面膜材を含む）とをより強固に固定することができる。
　また、スキン部材の強度を向上させられる。 According to the skin member according to this aspect, since the back surface membrane material having flexibility is provided on the back surface of the framework material, the framework material and the membrane material (including the back surface membrane material) are fixed more firmly. be able to.
Also, the strength of the skin member can be improved.

　また、本開示の一態様に係るスキン部材において、裏面膜材の材料は、樹脂製のフィルム材、布材及び布材に樹脂を含侵させた材料のいずれか又は組合せとされている。 In addition, in the skin member according to one aspect of the present disclosure, the material of the back surface film material is any one or combination of resin film material, cloth material, and cloth material impregnated with resin.

　本態様に係るスキン部材によれば、裏面膜材の材料は、樹脂製のフィルム材、布材及び布材に樹脂を含侵させた材料のいずれか又は組合せとされているので、裏面膜材の強度を確保しつつ軽量化を実現できる。 According to the skin member according to this aspect, the material of the back surface film material is any one or a combination of a resin film material, a cloth material, and a material obtained by impregnating a cloth material with a resin. It is possible to achieve weight reduction while ensuring the strength of

　また、本開示の一態様に係る翼構造は、上記いずれかの態様に係るスキン部材を備え、スキン部材の骨組材が翼の外板の形状に倣っている。 Further, a wing structure according to one aspect of the present disclosure includes the skin member according to any one of the aspects described above, and the framework material of the skin member follows the shape of the outer plate of the wing.

　本態様に係る翼構造によれば、上記いずれかの態様に係るスキン部材を備え、スキン部材の骨組材が翼の外板の形状に倣っているので、軽量でありながら強度が確保された翼構造を提供できる。
　この翼構造は、例えば航空機の翼や再生可能エネルギー発電に用いられる大型風車や潮流発電などの翼に採用される。 According to the wing structure according to this aspect, the skin member according to any one of the aspects described above is provided, and the framework material of the skin member follows the shape of the outer plate of the wing. structure can be provided.
This wing structure is used, for example, in aircraft wings, large windmills used for renewable energy power generation, and tidal current power generation wings.

１０　翼構造（構造物）
１００　スキン部材
１１０　骨組材
１１１　第１ロッド材
１１２　第２ロッド材
１２０　膜材
１３０　裏面膜材
２００　スパー
３００　補強部材 10 Wing structure (structure)
100 skin member 110 frame member 111 first rod member 112 second rod member 120 membrane member 130 back membrane member 200 spar 300 reinforcing member

Claims (8)

　構造物の外板を形成するスキン部材であって、
　前記外板の形状を構成する格子状の骨組材と、
　該骨組材の表面に設けられた柔軟性を有する膜材と、
を備えているスキン部材。 A skin member forming the outer skin of a structure,
a grid-like frame material that forms the shape of the outer plate;
a flexible film material provided on the surface of the frame material;
A skin member comprising a 　前記骨組材は、所定方向に延在する第１ロッド材と、該第１ロッド材に対して交差して接続された第２ロッド材と、を有している請求項１に記載のスキン部材。 2. The skin member according to claim 1, wherein the framework member has a first rod member extending in a predetermined direction and a second rod member crossing and connected to the first rod member. . 　前記第２ロッド材は、前記第１ロッド材に対して±４５度で交差している請求項２に記載のスキン部材。 The skin member according to claim 2, wherein the second rod material intersects the first rod material at ±45 degrees. 　前記骨組材の材料は、繊維強化樹脂とされている請求項１から３のいずれかに記載のスキン部材。 The skin member according to any one of claims 1 to 3, wherein the material of the framework material is fiber reinforced resin. 　前記膜材の材料は、樹脂製のフィルム材、布材及び布材に樹脂を含侵させた材料のいずれか、又は、それらの組合せとされている請求項１から４のいずれかに記載のスキン部材。 5. A material for the film material according to any one of claims 1 to 4, wherein the material of the film material is a resin film material, a cloth material, a material obtained by impregnating a cloth material with a resin, or a combination thereof. skin component. 　前記骨組材の裏面に設けられた裏面膜材を備えている請求項１から５のいずれかに記載のスキン部材。 The skin member according to any one of claims 1 to 5, comprising a back surface film material provided on the back surface of the framework material. 　前記裏面膜材の材料は、樹脂製のフィルム材、布材及び布材に樹脂を含侵させた材料のいずれか又は組合せとされている請求項６に記載のスキン部材。 The skin member according to claim 6, wherein the material of the back surface film material is one or a combination of a resin film material, a cloth material, and a material obtained by impregnating a resin into a cloth material. 　請求項１から７のいずれかに記載のスキン部材を備え、
　前記スキン部材の前記骨組材が翼の外板の形状に倣っている翼構造。 A skin member according to any one of claims 1 to 7,
A wing structure in which said framework of said skin member follows the shape of a wing skin.
PCT/JP2022/025121 2021-08-23 2022-06-23 Skin member and blade structure Ceased WO2023026662A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006076358A (en) * 2004-09-07 2006-03-23 Sharp Corp Feather, method of manufacturing feather and moving device provided with the feather
JP2010524770A (en) * 2007-04-26 2010-07-22 エアバス・オペレーションズ・ゲーエムベーハー Aircraft wing-fuselage assembly
JP2014167083A (en) * 2012-06-15 2014-09-11 Boeing Co Multiple-resin composite structures and methods of producing the same
CN210479007U (en) * 2019-06-29 2020-05-08 佛山市中智广远科技有限公司 Light wing of small unmanned aerial vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006076358A (en) * 2004-09-07 2006-03-23 Sharp Corp Feather, method of manufacturing feather and moving device provided with the feather
JP2010524770A (en) * 2007-04-26 2010-07-22 エアバス・オペレーションズ・ゲーエムベーハー Aircraft wing-fuselage assembly
JP2014167083A (en) * 2012-06-15 2014-09-11 Boeing Co Multiple-resin composite structures and methods of producing the same
CN210479007U (en) * 2019-06-29 2020-05-08 佛山市中智广远科技有限公司 Light wing of small unmanned aerial vehicle

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