DE102004042423A1 - Surface heating for deicing composite aerodynamic structure uses electrically conducting reinforcing fibers to also act as resistance heating element - Google Patents
Surface heating for deicing composite aerodynamic structure uses electrically conducting reinforcing fibers to also act as resistance heating element Download PDFInfo
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- DE102004042423A1 DE102004042423A1 DE102004042423A DE102004042423A DE102004042423A1 DE 102004042423 A1 DE102004042423 A1 DE 102004042423A1 DE 102004042423 A DE102004042423 A DE 102004042423A DE 102004042423 A DE102004042423 A DE 102004042423A DE 102004042423 A1 DE102004042423 A1 DE 102004042423A1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
- B64D15/12—De-icing or preventing icing on exterior surfaces of aircraft by electric heating
-
- 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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- 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
- B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
- B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/779—Heating equipment
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Aviation & Aerospace Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
Die Erfindung betrifft ein aerodynamisches Bauteil mit einer Flächenheizung und den Merkmalen des Oberbegriffs des Patentanspruchs 1 sowie ein Verfahren zur Herstellung eines solchen aerodynamischen Bauteils mit den Merkmalen des Oberbegriffs des Patentanspruchs 8.The The invention relates to an aerodynamic component with a surface heating and the features of the preamble of claim 1 and a method for producing such an aerodynamic component with the features of the preamble of claim 8.
Das aerodynamische Bauteil der Erfindung weist die Flächenheizung auf, um durch deren Einsatz den Aufbau von Vereisungen zu verhindern oder bereits entstandene Vereisungen zu entfernen, d.h. die vorgesehene Aufgabe der Flächenheizung ist die des Enteisens einer Oberfläche des Bauteils.The Aerodynamic component of the invention has the surface heating in order to prevent their use from building up icing or to remove already formed icing, i. the intended Task of surface heating is that of de-icing a surface of the component.
Das Bauteil der Erfindung kann konkret ein Bauteil eines Flugzeugs sein. Es kann sich aber auch um ein Bauteil einer Windkraftanlage, beispielsweise einen Flügel oder einen Teil eines Flügels eines Rotors einer Windkraftanlage oder ein Bauteil einer anderen Vorrichtung handeln, bei der grundsätzlich die Gefahr von Vereisungen besteht. Dabei geht es insbesondere um solche Vereisungen, die durch die besonderen Bedingungen der Umströmung des Bauteils auftreten. Hierbei handelt es sich um einen insbesondere aus der Luftfahrt bekannten Effekt.The Specifically, a component of the invention can be a component of an aircraft. But it can also be a component of a wind turbine, such as a wing or part of a grand piano a rotor of a wind turbine or a component of another Device acting, in principle, the risk of icing consists. This is particularly about such icing, which by the special conditions of the flow around the component occur. This is one in particular from aviation known effect.
Zur Verhinderung der Vereisung bzw. zur Enteisung von aerodynamischen Bauteilen von Flugzeugen sind neben pneumatisch-mechanischen Systemen auch Systeme bekannt, bei denen ein Wärmeeintrag in den Bereich der zu verhindernden Vereisung erfolgt. Der Wärmeeintrag kann durch Ausblasen heißer Gase oder Einstrahlen von Mikrowellen erfolgen. Die vorliegende Erfindung befasst sich demgegenüber mit dem ebenfalls grundsätzlich bekannten Prinzip, den Wärmeeintrag mit einer Flächenheizung zu bewirken. Dabei kann eine dauerhafte Beheizung vorgesehen sein. Häufig ist es aber energetisch günstiger, wenn die Aufheizung nur kurzfristig erfolgt, so dass sich eventuell auf der Oberfläche aufgewachsenes Eis von der jeweiligen Oberfläche ablöst, weil es an seiner Kontaktfläche anschmilzt.to Prevention of icing or defrosting of aerodynamic Components of aircraft are in addition to pneumatic-mechanical systems Also known systems in which a heat input in the field of icing to be prevented takes place. The heat input can be made by blowing out hot Gases or irradiation of microwaves. The present In contrast, the invention is concerned with the also basically known principle, the heat input with a surface heating to effect. In this case, a permanent heating can be provided. Often but is it energetically cheaper, if the heating takes place only briefly, so that possibly on the surface Grown ice from the respective surface detaches because it melts at its contact surface.
Ein
aerodynamisches Bauteil mit einer Flächenheizung und den Merkmalen
des Oberbegriffs des Patentanspruchs 1 ist aus der
Aus
der
AUFGABE DER ERFINDUNGTASK OF THE INVENTION
Der Erfindung liegt die Aufgabe zugrunde, ein aerodynamisches Bauteil mit einer Flächenheizung und den Merkmalen des Patentanspruchs 1 aufzuzeigen, bei dem die vorangehend beschriebenen Probleme des Stands der Technik vermieden sind, insbesondere diejenigen im Zusammenhang mit der Anpassung der Flächenheizung an eine dreidimensionale gekrümmte tragende Struktur des Bauteils. Weiterhin soll ein Verfahren zur Herstellung des neuen aerodynamischen Bauteils in besonders effektiver Weise aufgezeigt werden.Of the Invention is based on the object, an aerodynamic component with a surface heating and the features of claim 1, wherein the previously described problems of the prior art are avoided, especially those related to the adaptation of surface heating to a three-dimensional curved supporting structure of the component. Furthermore, a method for Production of the new aerodynamic component in a particularly effective Be shown way.
LÖSUNGSOLUTION
Die Aufgabe der Erfindung wird durch ein aerodynamisches Bauteil mit den Merkmalen des unabhängigen Patentanspruchs 1 und durch ein Verfahren mit dem Merkmal des nebengeordneten Patentanspruchs 8 gelöst.The The object of the invention is achieved by an aerodynamic component the characteristics of the independent Patent claim 1 and by a method with the feature of the sibling Patent claim 8 solved.
Bevorzugte
Ausführungsformen
des neuen aerodynamischen Bauteils und des Verfahrens zu seiner
Herstellung sind in den Unteransprüchen
BESCHREIBUNG DER ERFINDUNGDESCRIPTION THE INVENTION
Bei dem neuen aerodynamischen Bauteil ist das Widerstandsheizelement der Flächenheizung aus elektrisch leitfähigen Verstärkungsfasern der tragenden Struktur ausgebildet D.h., dass das Widerstandsheizelement in Form elektrisch leitfähiger Verstärkungsfasern die tragende Struktur verstärkt und seine Lasttragungsfähigkeit erhöht. Dabei geht es nicht darum, das Widerstandsheizelement aus irgendwelchen Fasern auszubilden und einen separaten Aufbau der Flächenheizung mit einer tragenden Struktur, die über hiervon getrennte Verstärkungsfasern verfügt, zu laminieren. Vielmehr haben die elektrisch leitfähigen Verstärkungsfasern, die das Widerstandselement bei dem neuen aerodynamischen Bauteil ausbilden, eine echte Doppelfunktion, und sie sind in dieselbe geschlossene Kunststoffmatrix eingebettet, wie die anderen Verstärkungsfasern der tragenden Struktur. Dies stellt eine hohe Integrität des gesamten aerodynamischen Bauteils einschließlich einer hohen Beständigkeit gegenüber mechanischen Belastungen sicher.at the new aerodynamic component is the resistance heating element the surface heating off electrically conductive reinforcing fibers the supporting structure is formed, that is, the resistance heating element in the form of electrically conductive reinforcing fibers reinforces the load-bearing structure and its load bearing capacity elevated. It's not about the resistance heating element from any Form fibers and a separate structure of the surface heating with a load-bearing structure over the separate reinforcing fibers features, to laminate. Rather, the electrically conductive reinforcing fibers, the resistance element in the new aerodynamic component training, a real dual function, and they are in the same closed Embedded plastic matrix, like the other reinforcing fibers the carrying structure. This represents a high integrity of the whole aerodynamic component including high durability across from safe mechanical loads.
Die elektrisch leitfähigen, das Widerstandsheizelement ausbildenden Verstärkungsfasern sind vorzugsweise übliche Kohlenstofffasern. Metallisch beschichtete Kohlenstofffasern sind für das neue aerodynamische Bauteil nicht erforderlich. Vielmehr sind Kohlenstofffasern, wie sie zur Faserverstärkung von Kunststoff regulär verwendet werden, für die Ausbildung des Widerstandsheizelements bestens geeignet.The electrically conductive, The reinforcing fibers forming the resistance heating element are preferably conventional carbon fibers. Metallic coated carbon fibers are for the new aerodynamic component not mandatory. Rather, carbon fibers, as they are for Fiber reinforcement of Plastic regular to be used for the formation of the resistance heating well suited.
Eine elektrische lsolierung, die Kurzschlüsse der an das Widerstandsheizelement angelegten Spannung vermeidet, kann durch in die Kunststoffmatrix der tragenden Struktur eingebettete nicht elektrisch leitende Verstärkungsfasern bewirkt werden. So können die Verstärkungsfasern der tragenden Struktur mindestens eine Lage aus nicht elektrisch leitenden Verstärkungsfasern zwischen den elektrisch leitfähigen, das Widerstandsheizelement ausbildenden Verstärkungsfaser und der äußeren Oberfläche und/oder einer Rückseite des Bauteils umfassen. Diese Lage aus nichtelektrisch leitenden Verstärkungsfasern bildet mit der sie einbettenden Kunststoffmatrix eine durchschlagstarke elektrische Isolierung für das Widerstandsheizelement des neuen aerodynamischen Bauteils aus. Es ist wichtig festzustellen, dass auch die nicht elektrisch leitfähigen Verstärkungsfasern, die die Isolierung bei dem neuen aerodynamischen Bauteil ausbilden, eine echte Doppelfunktion haben und zu deren Verstärkung in dieselbe geschlossene Kunststoffmatrix eingebettet sind, wie alle anderen Verstärkungsfasern der tragenden Struktur.A electrical insulation, the short circuits to the resistance heating element Avoiding applied stress can pass through the plastic matrix the supporting structure embedded non-electrically conductive reinforcing fibers be effected. So can the reinforcing fibers the supporting structure at least one layer of non-electrically conductive reinforcing fibers between the electrically conductive, the resistance heating element forming reinforcing fiber and the outer surface and / or a back of the component. This layer of non-electrically conductive reinforcing fibers forms a strong impact with the embedding plastic matrix electrical insulation for the resistance heating of the new aerodynamic component. It is important to note that even the non-electrically conductive reinforcing fibers, which form the insulation in the new aerodynamic component, have a real dual function and to their reinforcement in the same closed plastic matrix are embedded as all other reinforcing fibers the carrying structure.
Die nicht elektrisch leitfähigen Verstärkungsfasern können beispielsweise Glasfasern sein, wie sie ebenfalls zur Verstärkung von Kunststoffen regelmäßig eingesetzt werden.The not electrically conductive reinforcing fibers can For example, be glass fibers, as they also for the reinforcement of Used regularly become.
Von dem Widerstandsheizelement aus gesehen hinter der einen oder mehreren Lagen aus nicht elektrisch leitenden Verstärkungsfasern können ohne weiteres weitere elektrisch leitende Verstärkungsfasern vorgesehen sein, die nicht elektrisch kontaktiert sind und ausschließlich der Verstärkung der tragenden Struktur des Bauteils dienen.From the resistance heating from behind the one or more Layers of non-electrically conductive reinforcing fibers can readily be provided further electrically conductive reinforcing fibers, which are not electrically contacted and excluding the reinforcement serve the supporting structure of the component.
Die elektrische Kontaktierung des aus den elektrisch leitfähigen Verstärkungsfasern ausgebildeten Widerstandsheizelements kann über Gitterbänder, die in die Lage der Verstärkungsfasern eingedrückt sind und an diese angedrückte bandförmige Zuleitungen, die mit elektrischen Anschlüssen verbunden sind, erfolgen. Die Zwischenordnung der Gitterbänder zwischen die Lage aus den elektrisch leitenden Verstärkungsfasern und die bandförmigen Zuleitungen stellt einerseits eine gute elektrische Kontaktierung der Verstärkungsfasern und andererseits einen weniger ausgeprägten Kontaktwiderstand sicher.The electrical contacting of the resistance heating element formed from the electrically conductive reinforcing fibers can be effected via grid bands which are pressed into the position of the reinforcing fibers and to which these pressed strip-shaped supply lines which are connected to electrical terminals. The interposition of the grid bands between the position of the electrically lei On the one hand ensures a good electrical contacting of the reinforcing fibers and on the other hand a less pronounced contact resistance.
Die bandförmigen Zuleitungen können massive Metallbänder sein. Besonders geeignet sind jedoch aus einer Vielzahl von Einzeldrähten zusammengesetzte dreidimensional verformbare Zuleitungen. Als Material sind die gut leitfähigen Metalle, insbesondere Kupfer besonders geeignet.The band-shaped Supply lines can massive metal bands be. However, particularly suitable are composed of a plurality of individual wires three-dimensionally deformable supply lines. As a material, they are good conductive Metals, especially copper particularly suitable.
Die bandförmigen Zuleitungen selbst oder die mit diesen verbundenen elektrischen Anschlüsse können sich durch mindestens eine Lage aus den nicht elektrisch leitenden Verstärkungsfasern hindurch bis an die Rückseite der tragenden Struktur erstrecken, wo sie mit einem Spannungsgenerator zur Beaufschlagung des Widerstandsheizelements verbindbar sind.The band-shaped Supply lines themselves or connected to these electrical Connections can become by at least one layer of the non-electrically conductive reinforcing fibers through to the back The load-bearing structure extends to where it is connected to a voltage generator can be connected to act on the resistance heating element.
Besonders bevorzugt ist es, wenn ein solcher Spannungsgenerator in Abhängigkeit von der mit dem Widerstandsheizelement erreichten Temperatur an der oder nahe der Oberfläche des aerodynamischen Bauteils, deren Vereisungen zu verhindern sind, geregelt wird. Zur Messung dieser Temperatur ist vorzugsweise mindestens ein Temperatursensor in die Kunststoffmatrix eingebettet. Besonders gut für die Integration in das neue Bauteil eignet sich ein Folientemperatursensor.Especially it is preferred if such a voltage generator in dependence from the temperature reached with the resistance heating element the or near the surface the aerodynamic component whose icing is to be prevented is regulated. To measure this temperature is preferably at least a temperature sensor embedded in the plastic matrix. Especially good for the Integration into the new component is a film temperature sensor.
Das erfindungsgemäße Verfahren zur Herstellung eines aerodynamischen Bauteils basiert auf den für die Herstellung von aerodynamischen Bauteilen aus Faserverbundwerkstoffen üblichen Schritten des Anordnens mehrerer Lagen von Verstärkungsfasern auf einem Formwerkzeug, des Tränkens der Verstärkungsfasern mit einem Harz und des Aushärtens des Harzes zu einer geschlossenen, die Verstärkungsfasern einbettenden festen Kunststoffmatrix. Als erfindungsgemäße Besonderheit erfolgt dabei ein elektrisches Kontaktieren mindestens einer Lage der Verstärkungsfasern, die aus elektrisch leitfähigen Verstärkungsfasern besteht, in mindestens zwei voneinander beabstandeten Kontaktbereichen. Zwischen den Kontaktbereichen bilden die elektrisch leitfähigen Verstärkungsfasern das Widerstandsheizelement für die Flächenheizung des neuen aerodynamischen Bauteils aus.The inventive method for producing an aerodynamic component based on that for the production of aerodynamic components made of fiber composites usual Steps of Placing Multiple Plies of Reinforcing Fibers on a Mold Tool of drinking the reinforcing fibers with a resin and hardening of the resin to a closed, the reinforcing fibers embedding solid Plastic matrix. As a special feature of the invention takes place electrically contacting at least one layer of the reinforcing fibers, made of electrically conductive reinforcing fibers consists, in at least two spaced contact areas. Between the contact areas form the electrically conductive reinforcing fibers the resistance heating element for the surface heating of the new aerodynamic component.
Zur Ausbildung von Isolationen auf einer oder beiden Seiten des Widerstandsheizelements der Flächenheizung kann mindestens eine Lage der Verstärkungsfasern, die aus nicht elektrisch leitenden Fasern besteht, zwischen dem Formwerkzeug und der Lage aus den elektrisch leitfähigen Verstärkungsfasern und/oder oben auf der Lage aus den elektrisch leitfähigen Verstärkungsfasern angeordnet werden.to Forming of insulation on one or both sides of the resistance heating of the panel heating can be at least one layer of reinforcing fibers that does not electrically conductive fibers, between the mold and the layer of the electrically conductive reinforcing fibers and / or above be arranged on the layer of the electrically conductive reinforcing fibers.
Zum elektrischen Kontaktieren der Lage aus den elektrisch leitfähigen Verstärkungsfasern in den voneinander beabstandeten Kontaktbereichen können auf dem Formwerkzeug Gitterbänder aus Metall direkt benachbart der Lage aus den elektrisch leitfähigen Verstärkungsfasern und bandförmige Zuleitungen direkt benachbart den Gitterbändern aus Metall angeordnet werden. Wenn die Lagen der Verstärkungsfasern, die Gitterbänder und die bandförmigen Zuleitungen beim anschließenden Aushärten des Harzes auf dem Formwerkzeug zusammengedrückt werden, wird eine sichere elektrische Kontaktierung der elektrisch leitfähigen Verstärkungsfasern erreicht.To the electrically contacting the layer of the electrically conductive reinforcing fibers in the spaced contact areas can on the forming tool grid bands made of metal directly adjacent to the layer of the electrically conductive reinforcing fibers and band-shaped Power leads arranged directly adjacent to the mesh bands of metal become. If the layers of reinforcing fibers, the grid bands and the band-shaped leads at the subsequent Harden of the resin are compressed on the mold becomes a safe achieved electrical contacting of the electrically conductive reinforcing fibers.
Es ist aber auch möglich, die Gitterbänder schon vor dem Aushärten des Harzes mit der Lage aus den elektrisch leitfähigen Verstärkungsfasern und/oder den Zuleitungen zu verkleben, um nicht allein den Zusammenhalt der Kunststoffmatrix für die Sicherstellung des elektrischen Kontakts zwischen diesen Bestandteilen des neuen aerodynamischen Bauteils zu nutzen.It but it is also possible the grid bands already before curing of the resin with the layer of the electrically conductive reinforcing fibers and / or the leads not stick to the cohesion of the plastic matrix alone for the security the electrical contact between these components of the new one aerodynamic component to use.
Elektrische Anschlüsse für die Zuleitungen werden vorzugsweise bereits vor dem Aushärten des Harzes von den Zuleitungen durch die Lage aus den nicht elektrisch leitenden Verstärkungsfasern hindurchgeführt, die eine Isolation für das Widerstandsheizelement der Flächenheizung des neuen aerodynamischen Bauteils bereitstellt.electrical connections for the Feed lines are preferably already before the curing of the resin from the leads by the location of the non-electrically conductive reinforcing fibers passed, the one isolation for the resistance heating element of the surface heating of the new aerodynamic Component provides.
Zur Integration eines Folientemperatursensors in das neue aerodynamische Bauteil kann dieser vor dem Aushärten des Harzes zwischen den Lagen der Verstärkungsfasern auf dem Formwerkzeug angeordnet werden. Soweit eine elektrische Isolierung des Temperatursensors gegenüber dem Widerstandsheizelement der Flächenheizung erforderlich oder erwünscht ist, kann diese Isolierung durch eine zwischen dem Widerstandsheizelement und dem Folientemperatursensor angeordnete Lage aus nicht elektrisch leitfähigen Verstärkungsfasern bewirkt werden.to Integration of a film temperature sensor in the new aerodynamic This component can be cured before curing of the resin between the layers of reinforcing fibers on the mold to be ordered. As far as an electrical insulation of the temperature sensor across from the resistance heating element of the surface heating required or he wishes This insulation can be replaced by a between the resistance heating element and the film temperature sensor disposed layer of non-electric conductive reinforcing fibers be effected.
Die Verstärkungsfasern können vor und/oder nach ihrem Anordnen auf dem Formwerkzeug mit dem Harz getränkt werden. Die Verstärkungsfasern können also in trockenen Geweben oder Vliesen auf dem Formwerkzeug angeordnet werden, die erst nachträglich mit dem Harz getränkt werden. Es ist aber auch möglich, mit Harz getränkte Gewebe oder Vliese als Lagen der Verstärkungsfasern auf dem Formwerkzeug anzuordnen und deren Harzanteil erst in einem anschließenden Wärmebehandlungsschritt miteinander zu verschmelzen und auszuhärten.The reinforcing fibers can before and / or after placing it on the mold with the resin soaked become. So the reinforcing fibers can arranged in dry tissues or nonwovens on the mold be that only later soaked in the resin become. But it is also possible impregnated with resin Tissues or webs as layers of reinforcing fibers on the forming tool to arrange and their resin content only in a subsequent heat treatment step merge and harden together.
In jedem Fall ist das erfindungsgemäße Verfahren zur Herstellung des aerodynamischen Bauteils ein solches, das als ein-Schuss-Verfahren zu bezeichnen ist und bei dem die Flächenheizung in situ, dass heißt bei der originären Ausbildung des Bauteils mit ausgebildet wird.In In any case, the inventive method for the production of the aerodynamic component such as One-shot method is to be designated and in which the surface heating in situ, that is at the original Training the component is formed with.
KURZBESCHREIBUNG DER FIGURSUMMARY THE FIGURE
Im Folgenden wird die Erfindung anhand eines in der Figur dargestellten bevorzugten Ausführungsbeispiels weiter erläutert und beschrieben.in the The invention will be described below with reference to one of the figures preferred embodiment further explained and described.
FIGURENBESCHREIBUNGDESCRIPTION OF THE FIGURES
Das
in
Zur
Herstellung des neuen Bauteils
Eine
spezielle Anwendung des neuen Bauteils
- 11
- Verstärkungsfasern, leitendReinforcing fibers, conductive
- 22
- FolientemperatursensorFilm temperature sensor
- 33
- Verstärkungsfasern, n. leitendReinforcing fibers, n. conducting
- 44
- Isolierunginsulation
- 55
- Stehbolzenstuds
- 66
- Zuleitungsupply
- 77
- Muttermother
- 88th
- Gitterbandmesh belt
- 99
- Anschlussleitungconnecting cable
- 1010
- Gewindethread
- 1111
- Anschlussleitungconnecting cable
- 1212
- Bauteilcomponent
- 1313
- Flächenheizungpanel heating
- 1414
- Widerstandsheizelementresistance
- 1515
- Anschlussconnection
- 1616
- Kontaktbereichcontact area
- 1717
- Oberflächesurface
- 1818
- Strukturstructure
- 1919
- KunststoffmatrixPlastic matrix
- 2020
- UmgebungSurroundings
Claims (14)
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DE102004042423A DE102004042423A1 (en) | 2004-09-02 | 2004-09-02 | Surface heating for deicing composite aerodynamic structure uses electrically conducting reinforcing fibers to also act as resistance heating element |
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