High Pressure Rheology for Quantitative Elastohydrodynamics

Author: Scott S Bair
Publisher: Elsevier
ISBN: 9780080475301
Format: PDF, ePub, Docs
Download Now
Computational elastohydrodynamics, a part of tribology, has existed happily enough for about fifty years without the use of accurate models for the rheology of the liquids used as lubricants. For low molecular weight liquids, such as low viscosity mineral oils, it has been possible to calculate, with precision, the film thickness in a concentrated contact provided that the pressure and temperature are relatively low, even when the pressure variation of viscosity is not accurately modelled in detail. Other successes have been more qualitative in nature, using effective properties which come from the fitting of parameters used in calculations to experimental measurements of the contact behaviour, friction or film thickness. High Pressure Rheology for Quantitative Elastohydrodynamics is intended to provide a sufficiently accurate framework for the rheology of liquids at elevated pressure that it may be possible for computational elastohydrodynamics to discover the relationships between the behaviour of a lubricated concentrated contact and the measurable properties of the liquid lubricant. The required high-pressure measurement techniques are revealed in detail and data are presented for chemically well-defined liquids that may be used as quantitative reference materials. * Presents the property relations required for a quantitative calculation of the tribological behaviour of lubricated concentrated contacts. * Details of high-pressure experimental techniques. * Complete description of the pressure and temperature dependence of viscosity for high pressures. * Some little-known limitations on EHL modelling.

Tribology of Polymeric Nanocomposites

Author: Klaus Friedrich
Publisher: Elsevier
ISBN: 9780080559087
Format: PDF, Docs
Download Now
The area of tribology deals with the design, friction, wear and lubrication of interacting surfaces in relative motion. Polymer nanocomposite materials are increasingly common and offer remarkable improvements in the friction and wear properties of both bulk materials and coatings. This book gives a comprehensive description of polymeric nanocomposites, both as bulk materials and as thin surface coatings, and their behavior and potential use in tribological applications. It provides the preparation techniques, friction and wear mechanisms, properties of polymeric nanocomposites, characterization, evaluation and selection methodology. It also provides various examples of application of polymeric nanocomposites. * Provides a complete reference from the preparation to the selection of polymeric nanocomposites * Explains the theory through examples of real-world applications * More than 20 international tribology experts contribute to their area of expertise

Applied Tribology

Author: Michael M. Khonsari
Publisher: John Wiley & Sons
ISBN: 1118637240
Format: PDF
Download Now
Insightful working knowledge of friction, lubrication, and wear in machines Applications of tribology are widespread in industries ranging from aerospace, marine and automotive to power, process, petrochemical and construction. With world-renowned expert co-authors from academia and industry, Applied Tribology: Lubrication and Bearing Design, 3rd Edition provides a balance of application and theory with numerous illustrative examples. The book provides clear and up-to-date presentation of working principles of lubrication, friction and wear in vital mechanical components, such as bearings, seals and gears. The third edition has expanded coverage of friction and wear and contact mechanics with updated topics based on new developments in the field. Key features: Includes practical applications, homework problems and state-of-the-art references. Provides presentation of design procedure. Supplies clear and up-to-date information based on the authors’ widely referenced books and over 500 archival papers in this field. Applied Tribology: Lubrication and Bearing Design, 3rd Edition provides a valuable and authoritative resource for mechanical engineering professionals working in a wide range of industries with machinery including turbines, compressors, motors, electrical appliances and electronic components. Senior and graduate students in mechanical engineering will also find it a useful text and reference.

Grease Lubrication in Rolling Bearings

Author: Piet M. Lugt
Publisher: John Wiley & Sons
ISBN: 1118483979
Format: PDF, ePub, Mobi
Download Now
The definitive book on the science of grease lubrication forroller and needle bearings in industrial and vehicleengineering. Grease Lubrication in Rolling Bearings provides anoverview of the existing knowledge on the various aspects of greaselubrication (including lubrication systems) and the state of theart models that exist today. The book reviews the physical andchemical aspects of grease lubrication, primarily directed towardslubrication of rolling bearings. The first part of the book covers grease composition, propertiesand rheology, including thermal and dynamics properties. Laterchapters cover the dynamics of greased bearings, including greaselife, bearing life, reliability and testing. The final chaptercovers lubrications systems – the systems that deliver greaseto the components requiring lubrication. Grease Lubrication in Rolling Bearings: Describes the underlying physical and chemical properties ofgrease. Discusses the effect of load, speed, temperature, bearinggeometry, bearing materials and grease type on bearing wear. Covers both bearing and grease performance, includingthermo-mechanical ageing and testing methodologies. It is intended for researchers and engineers in thepetro-chemical and bearing industry, industries related to this(e.g. wind turbine industry, automotive industry) and forapplication engineers. It will also be of interest for teaching inpost-graduate courses.

Str mungsmechanik nichtnewtonscher Fluide

Author: Gert Böhme
Publisher: Springer-Verlag
ISBN: 3322801403
Format: PDF, Docs
Download Now
Die Grundlagen und Methoden, die zur theoretischen Modellierung und zur Analyse von Strömungsvorgängen mit nicht-newtonschen Fluiden erforderlich sind, werden in diesem Lehrbuch vorgestellt. Zunächst werden die kinematischen, die kontinuumsmechanischen und die stofflichen Grundlagen ausführlich erläutert. Die Anwendung des Basiswissens erfolgt exemplarisch anhand ausgewählter Strömungsvorgänge, die maßgeblich von den nichtlinearen Fließeigenschaften, von den Normalspannungsdifferenzen oder vom Gedächtnis der Flüssigkeiten beeinflusst werden. Dabei haben sich die Inhalte, die Schwerpunkte und die Beispiele gegenüber der ersten Auflage wesentlich geändert. Erstmalig in einem deutschsprachigen Lehrbuch werden auch die Grundzüge einer numerischen Strömungssimulation unter Berücksichtigung komplexer rheologischer Stoffmodelle behandelt.

Handbuch des Kathodischen Korrosionsschutzes

Author: Walter von Baeckmann
Publisher: John Wiley & Sons
ISBN: 3527625739
Format: PDF, ePub
Download Now
Seit dem Erscheinen der ersten Auflage vor fast 30 Jahren ist das Handbuch des kathodischen Korrosionsschutzes zu einem Klassiker geworden. Der Erfolgstitel liegt nun in der vierten Auflage vor. Kathodischer Korrosionsschutzes hat in den vergangenen Jahren nichts an seiner Bedeutung verloren - er ist auch heute noch eines der wichtigsten Verfahren des Korrosionschutzes überhaupt. Auf einigen Gebieten wie dem Schutz von Stahlbeton ist seine Bedeutung sogar noch gewachsen. Gut zehn Jahre nach dem Erscheinen der dritten Auflage musste in vielen Bereichen eine Neubearbeitung durchgeführt werden. Das gilt - wie bereits bei früheren Auflagen - für die Messtechnik zum Nachweis der ausreichenden Schutzwirkung mit der praktischen Anwendung bei Rohrleitungen und Fragen der Beeinflussung durch Gleichströme sowie die Wirkung von Wechselspannungen. Im Bereich der Korrosion bilden die verschiedenen Arten der Risskorrosion und die Wechselstromkorrosion Schwerpunkte der Überarbeitung. Auf dem Gebiet der Messtechnik und der Umhüllungsschäden wurden neuartige Beschriebungen der elektrischen Eigenschaften von Beschichtungsfehlstellen entwickelt. Die vierte Auflage erscheint in einer Zeit der verstärkten internationalen Zusammenarbeit - insbesondere bei der Normung - und eines zunehmenden Sicherbeitsbedarfs. Deshalb dient das Handbuch auch der Wissenserhaltung mit allen zugehörigen Grundlagenwissenschaften und gegebenenfalls auch zur Basis von Qualifikationsnachweisen. Wieder haben zahlreiche Fachleute aus der Industrie ihr Fachwissen zum weltweit einzigartigen Standardwerk über alle Anwendungsbereiche der elektrochemischen Korrosionsschutzverfahren beigetragen. Dabei wurde Wert auf lückenlose Querverweise zwischen den einzelnen Kapiteln und einheitliche bzw. normgerechte Terminologie gelegt. Das Handbuch ist nicht nur unentbehrlich für Unternehmen für kathodischen Schutz, sondern ist für alle Personen, die sich mit Korrosion und Korrosionsschutz beschäftigen, zum Nachschlagen und zur Weiterbildung geeignet.

Issues in Mechanical Engineering 2011 Edition

Author:
Publisher: ScholarlyEditions
ISBN: 1464963746
Format: PDF
Download Now
Issues in Mechanical Engineering / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Mechanical Engineering. The editors have built Issues in Mechanical Engineering: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Mechanical Engineering in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Mechanical Engineering: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.