Realittsnahe Simulation und mageschneiderte Beschichtungen fr eine optimale und effiziente Produktentwicklung
23/09/2014
SCHAEFFLER AG, BERLIN/SCHWEINFURT
360 Lifecycle Management - Schaeffler auf der InnoTrans 2014
Realit tsnahe Simulation und ma geschneiderte Beschichtungen f r eine optimale und effiziente Produktentwicklung
Ob gezogene Wagen im G ter- und Personenverkehr oder Triebfahrzeuge jeglicher Art - mit ber 100 Jahren Erfahrung in der Schienenverkehrstechnik entwickelt Schaeffler je nach Anwendung optimale Systeml sungen. Neben reibungs- bzw. leistungsoptimierten Produkten spielen moderne Berechnungs- und Simulationswerkzeuge f r die Effizienzsteigerung von W lzlagern eine Schl sselrolle. Dabei senken Werkzeuge zur Produkt- und Systementwicklung erheblich Entwicklungskosten und -zeiten.
W lzlageranalyse mit BEARINX und CABA3D
Zum Einsatz kommen dabei unter anderem FEM-Berechnungen in der Konstruktions- und Modellierungsphase zum Festigkeitsnachweis von Geh usen und Umbauteilen, BEARINX , ein von Schaeffler entwickeltes W lzlager-Berechnungsprogramm, sowie das Simulationsprogramm CABA3D zur detaillierten Analyse von komplexen dynamischen Vorg ngen im Lager und zur beanspruchungsgerechten Lagerauslegung. BEARINX wird seit ber 15 Jahren kontinuierlich weiterentwickelt und kombiniert bew hrtes und aktuelles Ingenieurwissen mit innovativen Analysem glichkeiten in einem kompletten Berechnungssystem zur Auslegung und Dimensionierung von W lzlagern. Die herausragende Leistungsf higkeit des Programms, vereint mit dem Fachwissen der Schaeffler-Anwendungsingenieure sowie der Praxiserfahrung der Kunden, f hrt zu innovativen und technisch anspruchsvollen L sungen.
Beschichtungen aus dem Baukasten
Um Bahnlager entsprechend ihres Einsatzes vor Stromdurchgang, Korrosion und Passungsrost, Verschlei , Reibung oder Schlupf zu sch tzen, stehen den Entwicklungsingenieuren im Kompetenzzentrum Oberfl chentechnik von Schaeffler Anlagen und Kapazit ten zur Verf gung, die neue M glichkeiten insbesondere in der Kombination unterschiedlicher Verfahren und Materialien er ffnen. Dabei steht die schnelle Umsetzung von ma geschneiderten und kundenorientierten oberfl chentechnischen L sungen stets im Vordergrund.
Im Bereich Korrosionsschutz sind die Beschichtungen Corrotect ZI (Zink-Eisen Legierung) und Corrotect ZN (Zink-Nickel Legierung) die richtige Wahl. Speziell Corrotect ZN bietet gem dem Salzspr htest nach DIN EN ISO 9227 bis zu 720 Stunden Schutz vor Rotrostbildung.
Um vorzeitigem Verschlei von W lzk rpern in Bahnmotoren- und Radsatzlagern vorzubeugen und um Reibung zu reduzieren, kommt die Beschichtung Durotect zum Einsatz. So verbessert zum Beispiel die Durotect B-Beschichtung (Eisenmischoxid) das Einlaufverhalten der Lager und unterst tzt bei schlechten Schmierungsverh ltnissen der Rillenkugellager in Fahrmotoren. Im Radsatzbereich dient oft die Durotect Z-Beschichtung (Zinkphosphat) als Korrosionsschutz, reduziert Passungsrost im Lagersitz und Reibung im Schiebesitz. Weitere Varianten sind die Durotect M-Beschichtung (Manganphosphat) f r die Verbesserung des Gleit- und Einlaufverhaltens und die Durotect NP-Beschichtung (Nickel-Phosphorbeschichtung) f r den Verschlei - und Korrosionsschutz.
Mit der Isolierbeschichtung Insutect A oder alternativ mit dem Einsatz von Keramikw lzk rpern bietet Schaeffler zudem wirkungsvolle Instrumente zur Vermeidung von Stromdurchgangssch den an W lzlagern.
Akkreditierte Pr fzentren f r Bahn-Radsatzlager
Radsatzlager sind an der Verbindungsstelle von Radsatz und Drehgestellrahmen extremen Belastungen ausgesetzt. Um die Sicherheit im t glichen Betrieb zu erh hen sowie Verschlei erscheinungen und Wartungsaufwand zu minimieren, verf gt Schaeffler ber akkreditierte Pr flabore zur Beurteilung des Leistungsverm gens von Radsatzlagern f r Bahnanwendungen.
Schaeffler verf gt ber jahrzehntelange Erfahrung im Bereich Radsatzlagerpr fung. Erste Untersuchungen wurden vor rund 50 Jahren in Schweinfurt durchgef hrt. Seit mittlerweile zehn Jahren ist das Labor in Deutschland akkreditiert und vor sieben Jahren wurde die erste Pr feinrichtung f r Radsatzlager in China installiert.
Alle Pr fst nde erm glichen Leistungspr fungen entsprechend den Vorgaben der europ ischen Norm EN 12082. Die gem dieser Norm durchgef hrten Funktionspr fungen dienen als Nachweis f r die Einsatzf higkeit der Radsatzlager im realen Fahrbetrieb. Der zus tzliche Kapazit tsaufbau in beiden L ndern verk rzt den Zeitaufwand f r die Freigabe von Lagern. Kunden und Endkunden profitieren so von der Reduzierung der Durchlaufzeiten der f r die Zulassung der Fahrzeuge wichtigen Nachweispr fungen.
Kundennahe, individuelle L sungen
Die Schaeffler-Anwendungstechnik ber t Kunden bei der Auswahl aus einem leistungsstarken Produktprogramm, kl rt Fragen zur konstruktiven Gestaltung der Lagerumgebung, zur Schmierung und Abdichtung sowie zum Lagereinbau und -ausbau. Die enge Zusammenarbeit mit nationalen und internationalen Universit ten, Forschungseinrichtungen und Fachverb nden gew hrleistet den Austausch aktueller Forschungsergebnisse, die f r die Entwicklungsarbeit eine wichtige Rolle spielen.
Die enge Verflechtung der Sparten Industrie und Automotive innerhalb der Schaeffler Gruppe erm glicht zudem die Adaption von Innovationen und Know-how aus der Werkstofftechnik sowie der Mechatronik und Sensorik auf den Bahnbereich. Innovative Neuerungen in Sachen Tribologie und Dichtungstechnik stellen dabei Schwerpunkte in der Entwicklungsarbeit dar.
LINK: | http://www.ina.de/content.ina.de/en/press/press-releases/press-details... |
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