WO2014002681A1 - 接着方法及び接着器具、並びに、構造体の製造方法 - Google Patents
接着方法及び接着器具、並びに、構造体の製造方法 Download PDFInfo
- Publication number
- WO2014002681A1 WO2014002681A1 PCT/JP2013/065148 JP2013065148W WO2014002681A1 WO 2014002681 A1 WO2014002681 A1 WO 2014002681A1 JP 2013065148 W JP2013065148 W JP 2013065148W WO 2014002681 A1 WO2014002681 A1 WO 2014002681A1
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- WIPO (PCT)
- Prior art keywords
- optical fiber
- thermoplastic resin
- melted
- bonding
- adhesion
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000013307 optical fiber Substances 0.000 claims abstract description 107
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 54
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 238000002788 crimping Methods 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000006757 chemical reactions by type Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004823 Reactive adhesive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3608—Fibre wiring boards, i.e. where fibres are embedded or attached in a pattern on or to a substrate, e.g. flexible sheets
- G02B6/3612—Wiring methods or machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
Definitions
- the present invention relates to a method for adhering an optical fiber to the surface of a structure such as an aircraft or a wind turbine blade, an adhesive instrument used for adhering the optical fiber, and a method for manufacturing the structure.
- the optical fiber is attached to the surface of the structure.
- the strain generated in the structure is transmitted to the optical fiber, and the damage to the structure is detected by measuring the strain generated in the optical fiber.
- peeling of the bonded portion of the structure is detected by measuring strain generated in the optical fiber.
- the structure include an aircraft, an automobile, a windmill blade, and the like.
- an optical fiber used for a sensor has a resin coating formed on the outer periphery of a strand having a core and a cladding.
- the optical fiber is generally bonded to the structure with a chemical reaction type adhesive such as an epoxy-based adhesive.
- Adhesion between an optical fiber and a structure using a chemically reactive adhesive is performed in the following steps. First, an adhesive obtained by mixing a main agent and a curing agent is applied to a predetermined position on the surface of the structure. Next, the optical fiber is placed at a predetermined position on the adhesive. An adhesive is further applied on the optical fiber. At this time, as shown in the cross-sectional view of FIG. 3, the optical fiber is covered with an adhesive. Thereafter, the adhesive is cured by leaving it to stand.
- a first aspect of the present invention is an adhesion method for adhering an optical fiber covered with a strand of thermoplastic resin to the surface of a structure, wherein at least one of the thermoplastic resins.
- a step of melting a portion a step of bringing the thermoplastic resin melted portion of the optical fiber into contact with the surface in a state where the thermoplastic resin is melted, and a step of pressure-bonding the optical fiber to the surface.
- a step of cooling and curing the thermoplastic resin is
- an optical fiber supply unit that supplies an optical fiber covered with a strand of thermoplastic resin to a surface of a structure, a heater that melts at least a part of the thermoplastic resin, It is an adhesive tool provided with the crimping
- a method of manufacturing a structure in which an optical fiber covered with a strand of thermoplastic resin is bonded the step of melting at least a part of the thermoplastic resin, A step of bringing a portion of the optical fiber in which the thermoplastic resin is melted into contact with a surface of the structure, a step of pressure-bonding the optical fiber to the surface, and a step of pressing the thermoplastic resin. And a step of cooling and curing the structure.
- thermoplastic resin covering the strands is used as an adhesive. If the bonding method and the bonding jig of the present invention are used, the time required from the time when the optical fiber is pressure-bonded to the surface of the structure to the curing can be within one minute. Therefore, the time required for the work is greatly reduced as compared with the conventional method using a chemical reaction type adhesive. Further, it is possible to prevent the position of the optical fiber from shifting before the thermoplastic resin is completely hardened.
- the wire can be bonded to the structure in a state where the wire is covered with the thermoplastic resin. Therefore, the thermoplastic resin can transmit the distortion of the structure to the optical fiber, and a highly accurate soundness evaluation can be performed.
- the bonding method of the present invention can significantly shorten the time until resin curing as compared with the conventional bonding process, so that workability is improved. Further, since the optical fiber can be bonded without being displaced from a predetermined position or detached from the structure, the accuracy of soundness evaluation using the optical fiber sensor can be improved.
- the adhesive device of the present invention is easy to handle because the optical fiber supply section, the heater and the crimping section are integrated. Further, by using the bonding tool of the present invention, it is possible to bond the optical fiber to a predetermined position with good positional accuracy.
- FIG. 1 is a schematic view of an optical fiber applied to the bonding method of this embodiment.
- the optical fiber 1 includes a strand 2 having a core and a cladding, and a covering portion 3 that covers the outer periphery of the strand 2.
- an optical fiber having a configuration in which another covering portion (polyimide or the like) is provided between the strand 2 and the covering portion 3 can also be employed.
- the material of the core and the clad is not particularly limited.
- the diameter of the strand 2 is 0.05 to 0.15 mm.
- the covering portion 3 applicable to the bonding method of the present embodiment is formed of a thermoplastic resin.
- the thermoplastic resin include polyester, styrene, and polyethylene.
- the thickness of the covering portion 3 is 0.1 to 0.5 mm.
- the optical fiber 1 shown in FIG. 1 is bonded to a structure such as an aircraft, an automobile, or a wind turbine blade.
- the structure is a member made of a fiber reinforced resin substrate such as a carbon fiber reinforced resin substrate or a glass fiber reinforced resin substrate, or a metal plate such as aluminum.
- the members made of the above materials may be configured to be bonded with an adhesive.
- an adhesive for example, an epoxy adhesive can be applied.
- FIG. 2 is a schematic diagram for explaining the bonding jig of the present embodiment.
- the bonding jig 10 includes an optical fiber supply unit 11, a heater 14, and a forming roller (crimping unit) 15 housed in a casing 16.
- the optical fiber supply unit 11 includes an optical fiber winding roller 12 and two optical fiber supply rollers 13.
- the optical fiber 1 is wound around the optical fiber winding roller 12.
- the number of the optical fiber supply rollers 13 may be one.
- the heater 14 is installed in the optical fiber unwinding direction of the optical fiber supply unit 11.
- the forming roller 15 is installed in the optical fiber unwinding direction of the heater 14.
- the heater 14 is preferably installed in the vicinity of the forming roller 15 so that the surface of the structure 17 and the optical fiber 1 can come into contact before the heated thermoplastic resin is cooled and cured.
- the heater 14 is preferably a device (for example, a dryer) that supplies warm air toward the optical fiber.
- a heater temperature adjusting means (not shown) that adjusts the temperature of the hot air supplied from the heater 14 is connected to the heater 14.
- a heater 14 is installed on the opposite side of the optical fiber 1 from the forming roller 15. That is, the heater 14 can heat the surface of the optical fiber 1 opposite to the surface that contacts the forming roller 15.
- the optical fiber 1 unwound from the optical fiber winding roller 12 passes between the optical fiber supply rollers 13 and is inserted between the forming roller 15 and the structure 17.
- the molding roller 15 presses the optical fiber 1 against the surface of the structure 17.
- the bonding jig 10 can move on the surface of the structure 17 when the forming roller 15 rotates.
- the process of bonding the optical fiber to the structure surface using the bonding jig 10 will be described below.
- the bonding jig 10 is installed at the starting point of the position where the optical fiber on the surface of the structure 17 is installed.
- the installation position of the optical fiber is in the vicinity of the bonding surface of the two members in the structure 17.
- the end of the optical fiber 1 unwound from the optical fiber winding roller 12 is inserted between the forming roller 15 and the structure 17.
- the bonding jig 10 is moved so that the surface of the structure 17 follows the planned position of the optical fiber.
- the bonding jig 10 is moved to the right in the drawing.
- the bonding jig 10 moves, the optical fiber winding roller 12, the optical fiber supply roller 13, and the forming roller 15 rotate. As a result, the optical fiber 1 is unwound from the optical fiber winding roller 12 and conveyed to the heater 14 and the forming roller 15 through the optical fiber supply roller 13.
- the heater 14 heats and melts the thermoplastic resin that covers the surface of the optical fiber 1.
- the heating temperature should just be a temperature which can melt a thermoplastic resin, and is suitably set according to the kind of thermoplastic resin. In the present embodiment, it is not necessary to melt all the thermoplastic resins in the circumferential direction, and at least a portion of the thermoplastic resin that contacts the surface of the structure 17 may be melted.
- the optical fiber 1 is conveyed to the molding roller 15 in a state where the thermoplastic resin on the surface is melted.
- the molten thermoplastic resin comes into contact with the surface of the structure 17, and the molding roller 15 presses the optical fiber 1 to the surface of the structure 17.
- thermoplastic resin on the surface of the optical fiber 1 is cooled by contact with the forming roller 15 and the structure 17 or air cooling after passing through the heater 14.
- the thermoplastic resin is recured.
- the optical fiber 1 is bonded to the structure 17 in a state where the strand is covered with the covering portion made of the thermoplastic resin.
- the time required from pressure bonding to re-curing of the optical fiber is within 1 minute.
- the movement of the bonding jig 10 continuously melts the thermoplastic resin, presses the optical fiber, and re-cures the thermoplastic resin.
- a coating material is further applied on the optical fiber 1 to cover the optical fiber 1.
- the coating material include PR1750 (trade name, manufactured by PPG Aerospace).
- the coating material has moisture resistance, high temperature resistance, and low temperature resistance. For this reason, good inspection accuracy is ensured in the soundness evaluation of the structure using the optical fiber.
- a heater is built in and integrated with the molding roller, and the molding roller is configured to heat and melt the thermoplastic resin.
- the heater of FIG. 2 is omitted.
- Other configurations are the same as those in the first embodiment.
- the bonding jig of the second embodiment has a simplified structure compared to the first embodiment.
- the thermoplastic jig is continuously melted, the optical fiber is crimped, and the thermoplastic resin is recured by moving the bonding jig. Is called.
- the thermoplastic resin is heated by the molding roller and melted. Since the thermoplastic resin located on the bonding surface with the structure is melted and the thermoplastic resin covers the strands during re-curing, the temperature of the molding roller and the moving speed of the bonding jig (that is, the optical fiber) Supply speed) is adjusted.
- a coating material is applied from above the optical fiber as in the first embodiment.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
Description
まず、主剤と硬化剤とを混合した接着剤を、構造体表面の所定位置に塗布する。次いで、接着剤上の所定位置に光ファイバを所定位置に載置する。光ファイバの上に更に接着剤を塗布する。この時、図3の断面図のように、光ファイバは接着剤で被覆される。その後、放置して接着剤を硬化させる。
このように、高い接着位置精度を確保するためには作業工程に手間がかかり、作業終了までに長時間を要するので作業効率が悪いという問題があった。
以下に、第1実施形態に係る接着方法、接着治具及び構造体の製造方法を説明する。
図1は、本実施形態の接着方法に適用される光ファイバの概略図である。光ファイバ1は、コア及びクラッドを有する素線2と、素線2の外周を被覆している被覆部3とで構成される。なお、本実施形態では、素線2と被覆部3との間に別の被覆部(ポリイミド等)が設けられる構成の光ファイバも採用可能である。
接着治具10は、光ファイバ供給部11と、ヒータ14と、成形ローラ(圧着部)15とがケーシング16内に収容されて構成される。
構造体17表面の光ファイバを設置する位置の始点に、接着治具10が設置される。光ファイバの設置位置は、構造体17における2つの部材の接着面近傍である。
この時、光ファイバ巻付ローラ12から巻き出された光ファイバ1の端部が、成形ローラ15と構造体17との間に挿入される。
第2実施形態の接着治具では、成形ローラにヒータが内蔵されて一体化され、成形ローラが熱可塑性樹脂を加熱して溶融する構成とされる。この場合、図2のヒータは省略される。それ以外の構成は、第1実施形態と同じである。第2実施形態の接着治具は、第1実施形態と比較して構造がより簡略化されている。
本実施形態では、光ファイバが成形ローラに接触した時に、熱可塑性樹脂が成形ローラによって加熱され、溶融する。構造体との接着面に位置する熱可塑性樹脂が溶融され、且つ、再硬化時に熱可塑性樹脂が素線を被覆するために、成形ローラの温度や接着治具の移動速度(即ち、光ファイバの供給速度)が調整される。
2 素線
3 被覆部
10 接着治具
11 光ファイバ供給部
12 光ファイバ巻付ローラ
13 光ファイバ供給ローラ
14 ヒータ
15 成形ローラ(圧着部)
16 ケーシング
Claims (3)
- 熱可塑性樹脂によって素線が被覆された光ファイバを構造体の表面に接着する接着方法であって、
前記熱可塑性樹脂の少なくとも一部を溶融させる工程と、
前記熱可塑性樹脂が溶融した状態で、前記光ファイバの前記熱可塑性樹脂が溶融した部分と前記表面とを接触させる工程と、
前記光ファイバを前記表面に圧着させる工程と、
前記熱可塑性樹脂を冷却して硬化させる工程と
を含む接着方法。 - 熱可塑性樹脂によって素線が被覆された光ファイバを構造体の表面に供給する光ファイバ供給部と、
前記熱可塑性樹脂の少なくとも一部を溶融させるヒータと、
前記熱可塑性樹脂が溶融した部分と前記表面とを接触させるとともに、前記光ファイバを前記表面に圧着させる圧着部と
を備える接着器具。 - 熱可塑性樹脂によって素線が被覆された光ファイバが接着された構造体の製造方法であって、
前記熱可塑性樹脂の少なくとも一部を溶融させる工程と、
前記熱可塑性樹脂が溶融した状態で、前記光ファイバの前記熱可塑性樹脂が溶融した部分と前記構造体の表面とを接触させる工程と、
前記光ファイバを前記表面に圧着させる工程と、
前記熱可塑性樹脂を冷却して硬化させる工程と
を含む構造体の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/399,577 US20150129126A1 (en) | 2012-06-25 | 2013-05-31 | Bonding method and bonding tool, and method for producing structural body |
CN201380019531.9A CN104246557B (zh) | 2012-06-25 | 2013-05-31 | 粘接方法和粘接器具以及结构体的制造方法 |
CA2871098A CA2871098C (en) | 2012-06-25 | 2013-05-31 | Bonding method and bonding tool, and method for producing structural body |
EP13810671.1A EP2869100B1 (en) | 2012-06-25 | 2013-05-31 | Adhesion method and adhesion equipment, and method of manufacturing a structure |
RU2014145640/28A RU2592738C1 (ru) | 2012-06-25 | 2013-05-31 | Способ присоединения, инструмент для присоединения и способ изготовления конструкции |
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JP2012-141981 | 2012-06-25 | ||
JP2012141981A JP5925069B2 (ja) | 2012-06-25 | 2012-06-25 | 接着方法及び接着器具、並びに、構造体の製造方法 |
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US (1) | US20150129126A1 (ja) |
EP (1) | EP2869100B1 (ja) |
JP (1) | JP5925069B2 (ja) |
CN (1) | CN104246557B (ja) |
CA (1) | CA2871098C (ja) |
RU (1) | RU2592738C1 (ja) |
WO (1) | WO2014002681A1 (ja) |
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DE102021102869B4 (de) | 2021-02-08 | 2022-11-10 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren zum Ausrichten von optischen Fasern und Vorrichtungen zur Verwendung bei den Verfahren |
US11619794B2 (en) * | 2021-04-20 | 2023-04-04 | Palo Alto Research Center Incorporated | System for installing optical fiber |
DE102022208578A1 (de) | 2022-08-18 | 2024-02-29 | Zf Friedrichshafen Ag | Verfahren zur Anpassung von zumindest einem optischen Leitungselement an zumindest einen Verlegeweg |
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- 2013-05-31 RU RU2014145640/28A patent/RU2592738C1/ru active
- 2013-05-31 CA CA2871098A patent/CA2871098C/en not_active Expired - Fee Related
- 2013-05-31 CN CN201380019531.9A patent/CN104246557B/zh not_active Expired - Fee Related
- 2013-05-31 EP EP13810671.1A patent/EP2869100B1/en active Active
- 2013-05-31 US US14/399,577 patent/US20150129126A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
US20150129126A1 (en) | 2015-05-14 |
EP2869100B1 (en) | 2023-05-10 |
EP2869100A1 (en) | 2015-05-06 |
RU2592738C1 (ru) | 2016-07-27 |
EP2869100A4 (en) | 2016-03-16 |
JP5925069B2 (ja) | 2016-05-25 |
CN104246557A (zh) | 2014-12-24 |
CA2871098C (en) | 2018-08-14 |
JP2014006381A (ja) | 2014-01-16 |
CA2871098A1 (en) | 2014-01-03 |
CN104246557B (zh) | 2019-05-10 |
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