DE102014000134A1 - Force application component has interlayer that is arranged between force application element and fiber reinforced pipe, and formed by several material projections, where element is located at end portion of fiber reinforced pipe - Google Patents
Force application component has interlayer that is arranged between force application element and fiber reinforced pipe, and formed by several material projections, where element is located at end portion of fiber reinforced pipe Download PDFInfo
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- DE102014000134A1 DE102014000134A1 DE201410000134 DE102014000134A DE102014000134A1 DE 102014000134 A1 DE102014000134 A1 DE 102014000134A1 DE 201410000134 DE201410000134 DE 201410000134 DE 102014000134 A DE102014000134 A DE 102014000134A DE 102014000134 A1 DE102014000134 A1 DE 102014000134A1
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- Prior art keywords
- force introduction
- fiber reinforced
- intermediate layer
- force
- depressions
- 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.)
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Links
- 239000000835 fiber Substances 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 24
- 239000011229 interlayer Substances 0.000 title abstract 2
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 6
- 230000003746 surface roughness Effects 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000007799 cork Substances 0.000 claims abstract description 3
- 239000000806 elastomer Substances 0.000 claims abstract description 3
- 239000006260 foam Substances 0.000 claims abstract description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 3
- 239000005060 rubber Substances 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 13
- 239000002023 wood Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract 1
- -1 timber Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000275 quality assurance Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
- F16C7/026—Constructions of connecting-rods with constant length made of fibre reinforced resin
-
- 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
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/02—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts
Abstract
Description
Die vorliegende Erfindung betrifft formschlüssige Krafteinleitungselemente in faserverstärkten rohrförmigen Bauteilen.The present invention relates to positive force introduction elements in fiber-reinforced tubular components.
Bei dem Einsatz von faserverstärkten Rohren besteht häufig das grundsätzliche Problem, Kräfte in diese Struktur einzuleiten. Meistens werden dazu Gewindeelemente verwendet, die in den Rohren eingelassen werden. Für die problematische Verbindung von Gewindeelementen und faserverstärkten Rohren gibt es eine Vielzahl an Lösungen. Derartige Streben mit rohrförmigen Körpern aus Faserverbundwerkstoff zeichnen sich insbesondere durch ihr, im Vergleich zu metallischen Streben, geringes Gewicht aus.When using fiber-reinforced pipes, there is often the fundamental problem of introducing forces into this structure. Mostly this threaded elements are used, which are embedded in the tubes. For the problematic connection of threaded elements and fiber reinforced pipes, there are a variety of solutions. Such struts with tubular bodies of fiber composite material are characterized in particular by it, compared to metallic struts, low weight.
Üblich ist, die Krafteinleitungselemente am Ende derartiger Streben metallisch auszuführen. In den meisten Fällen werden Krafteinleitungselemente aus Aluminium eingesetzt. Diese sind üblicherweise stoffschlüssig durch Verklebung oder formschlüssige mit dem rohrförmigen Körper aus Faserverbundwerkstoff verbunden. Nachteilig sind hierbei die aufgrund unterschiedlicher Ausdehnungskoeffizienten zwischen Krafteinleitungselement und rohrförmigen Faserverbundrohrs induzierten Spannungen, die starre Verbindung, die sich nachteilig auf Stoßbelastungen in der Krafteinleitung auswirken, das schlagartige Komplettversagen bei Erreichen einer Grenzlast, die schlechte Korrosionsbeständigkeit, die aufwändige Qualitätskontrolle insbesondere bei der Klebverbindung und die hohen Herstellungskosten. Häufig weisen die in das Faserverbundrohr eingebrachten Krafteinleitungselemente stark abweichende thermische Ausdehnungskoeffizienten zu dem umgebenden Faserverbundmaterial auf welches sich insbesondre bei Temperaturbelastungen nachteilig auswirken kann.It is customary to carry out the force introduction elements at the end of such struts metallic. In most cases, aluminum load transfer elements are used. These are usually materially bonded by gluing or form-fitting with the tubular body made of fiber composite material. Disadvantages here are the stresses induced due to different coefficients of expansion between the force introduction element and the tubular fiber composite tube, the rigid connection, which adversely affects shock loads in the force introduction, the sudden complete failure upon reaching a limit load, the poor corrosion resistance, the complex quality control, in particular in the adhesive bond and the high production costs. Frequently, the force introduction elements introduced into the fiber composite pipe have greatly differing coefficients of thermal expansion relative to the surrounding fiber composite material, which may be disadvantageous in particular under temperature loads.
Gerade im Flugzeugbau, in dem derartige Streben auch als Verstrebungen, Verbindungsstangen oder Zug-Druck-Stangen bezeichnet werden, dienen die Streben insbesondere zur Führung und mechanischen Lagerung bzw. zur Abstützung (engl. „Struts” oder „Tierods”), sind extremen Temperaturschwankungen sowie mechanischen Belastungen ausgesetzt und müssen höchste Qualitätsstandards erfüllen. Streben dieser Art umfassen im Allgemeinen einen im Wesentlichen rohrförmigen Körper, an dessen Ende sich jeweils ein Element (Krafteinleitungselement) zur Montage der Strebe befindet.Especially in aircraft, in which such struts are also referred to as struts, connecting rods or train-pressure rods, the struts serve in particular for guidance and mechanical support or support (engl. "Struts" or "Tierods") are extreme temperature fluctuations as well as mechanical loads and must meet the highest quality standards. Struts of this type generally comprise a substantially tubular body, at the end of each one element (force introduction element) is for mounting the strut.
Diese Streben kommen in Flugzeugen in erheblichen Stückzahlen vor, wobei sich ein Strebentyp insbesondere durch Variation der Länge auszeichnet. Die Variation der Länge wird im Wesentlichen durch Veränderung der Länge des im Allgemeinen rohrförmigen Körpers der Strebe erreicht. Die Krafteinleitungselemente sind bei einem Strebentyp im Wesentlichen gleich, so dass insbesondere die Krafteinleitungselemente in einer hohen Stückzahl vorkommen.These struts occur in large numbers in aircraft, with a strut type is characterized in particular by varying the length. The variation of the length is achieved essentially by changing the length of the generally tubular body of the strut. The force introduction elements are substantially the same in a strut type, so that in particular the force introduction elements occur in a large number.
An derartige Streben werden besonders hohe Ansprüche an die Festigkeit der verwendeten Materialien bei gleichzeitig geringem Gewicht, an Reproduzierbarkeit und Qualitätssicherung, Wirtschaftlichkeit und auch an die Korrosionsbeständigkeit gestellt. Zudem müssen die Streben extrem widerstandsfähig gegen mechanische sowie umgebungsbedingte Beanspruchungen sein.At such struts particularly high demands are placed on the strength of the materials used at the same time low weight, reproducibility and quality assurance, cost-effectiveness and also to corrosion resistance. In addition, the struts must be extremely resistant to mechanical and environmental stresses.
Die steigenden Anforderungen an Gewichts- und Kosteneinsparung führen an die Grenzen des Potentials bekannter Bauweisen für Streben mit rohrförmigen Körpern aus Faserverbundwerkstoffen.The increasing demands on weight and cost saving lead to the limits of the potential of known designs for struts with tubular bodies made of fiber composites.
Der gattungsgemäße Stand der Technik ist aus
Im Fall der
Im Fall der
Bei dem Einsatz formschlüssig eingebrachter Krafteinleitungselemente ergibt sich in einigen Anwendungsfällen insbesondere die bereits angeführte Problematik aufgrund von Unterschieden in den thermischen Ausdehnungskoeffizienten und schlagartiger Krafteinleitung zwischen Krafteinleitungselement und dem faserverstärkten Rohr sowie die Problematik extrem aufwändiger Qualitätssicherungsmaßnahmen. Diese Problematik tritt insbesondere bei Einsatz der Struktur in einem weiten Temperaturbereich auf.When using form-fitting introduced force introduction elements results in some applications, in particular the already mentioned problem due to differences in the thermal expansion coefficients and sudden force application between force application element and the fiber-reinforced tube and the problem of extremely complex quality assurance measures. This problem occurs in particular when using the structure in a wide temperature range.
Alle bisher bekannten Bauweisen für Streben mit rohrförmigen Körpern aus Faserverbundwerkstoffen sind entweder zu aufwändig und damit zu kostenintensiv in der Herstellung und/oder halten den Anforderungen bezüglich geringen Gewichtes, Korrosionsfreiheit, Sicherheit der Verbindung, Spielfreiheit bei Temperaturschwankungen und/oder mechanischer Beanspruchungen nicht stand.All previously known designs for struts with tubular bodies made of fiber composites are either too expensive and therefore too expensive to manufacture and / or do not meet the requirements for low weight, corrosion resistance, security of the connection, backlash in temperature fluctuations and / or mechanical stresses.
Der Erfindung liegt daher die Aufgabe zugrunde, Krafteinleitungselemente für rohrförmige Streben aus Faserverbundwerkstoffen derart weiterzubilden, dass die dem heutigen Stand der Technik entsprechenden Nachteile vermieden werden. The invention is therefore the object of developing force application elements for tubular struts made of fiber composites such that the disadvantages corresponding to the current state of the art are avoided.
Die Aufgabe wird durch eine Krafteinleitungsbaugruppe dadurch gelöst, dass das formschlüssige Krafteinleitungselement (
Durch diese Bauweise ergeben sich folgende wesentlichen Vorteile gegenüber dem Stand der Technik. Spannungen die beispielsweise aufgrund von unterschiedlichen thermischen Ausdehnungskoeffizienten des Krafteinleitungselements (
Als weiterer positiver Nebeneffekt kann bei entsprechender Ausführung ein mehrstufiges Versagen, mindestens zweistufiges Versagen, im Bereich der Kraftübertragung durch die Zwischenschicht (
In einer weiteren Bauweise der Krafteinleitungsbaugruppe befindet sich im Bereich der Zwischenschicht (
Das faserverstärkte Rohr (
Das Krafteinleitungselement (
Die Erfindung wird im Folgenden anhand von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Zeichnungen näher beschrieben.The invention will be described in more detail below by means of embodiments with reference to the accompanying drawings.
Es zeigt:It shows:
Zwischen Krafteinleitungselement (
Das Kollabieren der Zwischenschicht (
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 3408650 A1 [0008] DE 3408650 A1 [0008]
- DE 202009003662 U1 [0008] DE 202009003662 U1 [0008]
- DE 102004021144 B4 [0008] DE 102004021144 B4 [0008]
- EP 0841490 [0008, 0009] EP 0841490 [0008, 0009]
- DE 102006039565 [0008, 0010] DE 102006039565 [0008, 0010]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014000134.2A DE102014000134B4 (en) | 2013-01-25 | 2014-01-13 | Force application assembly |
Applications Claiming Priority (3)
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DE102013001226 | 2013-01-25 | ||
DE102013001226.0 | 2013-01-25 | ||
DE102014000134.2A DE102014000134B4 (en) | 2013-01-25 | 2014-01-13 | Force application assembly |
Publications (2)
Publication Number | Publication Date |
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DE102014000134A1 true DE102014000134A1 (en) | 2014-07-31 |
DE102014000134B4 DE102014000134B4 (en) | 2015-06-25 |
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DE102014000134.2A Active DE102014000134B4 (en) | 2013-01-25 | 2014-01-13 | Force application assembly |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202016004215U1 (en) | 2016-06-25 | 2016-09-06 | Ralph Funck | Tubular fiber composite body with integrated stepless length adjustment |
DE102017003024A1 (en) | 2017-03-29 | 2018-10-04 | Ralph Funck | End element for introducing force into a prefabricated fiber-reinforced plastic composite pipe |
EP3722627A1 (en) * | 2019-04-09 | 2020-10-14 | Goodrich Corporation | Hybrid metallic/composite joint with integral bearing |
CN113195269A (en) * | 2018-12-17 | 2021-07-30 | 采埃孚股份公司 | Chassis suspension for a motor vehicle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3408650A1 (en) | 1984-03-09 | 1985-09-12 | Heinz 6464 Linsengericht Schattat | Device for transmitting forces between metal connection pieces and the ends of rod-shaped structural elements made of carbon fibre-reinforced plastics |
EP0841490A2 (en) | 1996-11-05 | 1998-05-13 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for force introduction |
DE102006039565A1 (en) | 2006-08-23 | 2008-03-06 | Schütze GmbH & Co. KG | Force transmission unit for fiber composite rod or pipe, has threaded sleeve inserted from front for holding unit together with stopper and screw, where unit is stuck together with fiber composite rod provided with ring coil on outer side |
DE202009003662U1 (en) | 2009-03-17 | 2009-07-09 | Harmia Beratungsgesellschaft Mbh | Force distribution in a fiber-reinforced pipe |
DE102004021144B4 (en) | 2004-04-29 | 2011-09-15 | Schütze GmbH & Co. KG | Connection for the transmission of tensile forces in bars or inner pressure-loaded tubes |
-
2014
- 2014-01-13 DE DE102014000134.2A patent/DE102014000134B4/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3408650A1 (en) | 1984-03-09 | 1985-09-12 | Heinz 6464 Linsengericht Schattat | Device for transmitting forces between metal connection pieces and the ends of rod-shaped structural elements made of carbon fibre-reinforced plastics |
EP0841490A2 (en) | 1996-11-05 | 1998-05-13 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for force introduction |
DE102004021144B4 (en) | 2004-04-29 | 2011-09-15 | Schütze GmbH & Co. KG | Connection for the transmission of tensile forces in bars or inner pressure-loaded tubes |
DE102006039565A1 (en) | 2006-08-23 | 2008-03-06 | Schütze GmbH & Co. KG | Force transmission unit for fiber composite rod or pipe, has threaded sleeve inserted from front for holding unit together with stopper and screw, where unit is stuck together with fiber composite rod provided with ring coil on outer side |
DE202009003662U1 (en) | 2009-03-17 | 2009-07-09 | Harmia Beratungsgesellschaft Mbh | Force distribution in a fiber-reinforced pipe |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202016004215U1 (en) | 2016-06-25 | 2016-09-06 | Ralph Funck | Tubular fiber composite body with integrated stepless length adjustment |
DE102016007663A1 (en) | 2016-06-25 | 2017-12-28 | Ralph Funck | Tubular fiber composite body with integrated stepless length adjustment |
DE102017003024A1 (en) | 2017-03-29 | 2018-10-04 | Ralph Funck | End element for introducing force into a prefabricated fiber-reinforced plastic composite pipe |
CN113195269A (en) * | 2018-12-17 | 2021-07-30 | 采埃孚股份公司 | Chassis suspension for a motor vehicle |
EP3722627A1 (en) * | 2019-04-09 | 2020-10-14 | Goodrich Corporation | Hybrid metallic/composite joint with integral bearing |
US11534984B2 (en) | 2019-04-09 | 2022-12-27 | Goodrich Corporation | Hybrid metallic/composite joint with integral bearing |
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DE102014000134B4 (en) | 2015-06-25 |
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