Tribologi (friktion og smøring)

This book looks at chemmotological solutions to important questions surrounding sustainability and environmental safety of transport - both key priorities within the global strategy of sustainable development. Bringing together expanded versions of selected papers presented at the 8th International Scientific-Technical Conference: Problems of Chemmotology - Theory and Practice of Rational Use of Conventional and Alternative Fuels and Lubricants, contributors present solutions to problematic questions, including choosing feedstock and technologies of its processing for manufacturing alternative fuels, development and implementation of measures for improving environmental safety of transport, minimizing exhaust gases emission from transport, introducing new solution or improvements in systems of fuels supply and infrastructure, and changes in legislative and regulatory base for fuels and lubricants use. This collection will be an invaluable reference for researchers, professionals, and students involved in alternative aviation fuels, transport engineering, sustainable transport development, and fuels and lubricants.

Welcome to the wonderful, practical world of fluid analysis utilization. There are plenty of labs around the world processing millions of oil, coolant, and fuel samples every year. Most of them do very professional work, however, the data received from them usually fall into two main categories: 1). The information is incomplete for a true machine health assessment, or; 2). At the user's end, nobody is acting on the information at a level that would allow good, proactive maintenance activity. The sad truth is that very few companies make use of the valuable information contained in fluids. This work, Fluid Analysis for Mobile Equipment, supports all activity around fluid analysis so managers can lay a more solid foundation for maintenance. It serves as a major contribution to both the science and art of fluid analysis, and is destined to become the cornerstone of every successful condition-based maintenance program. The examples and recommendations will have direct application to implement a true predictive maintenance program. More than 100 examples come from real-life cases, and reflect what many fleet managers encounter in their daily challenges.

Tribology and Sustainability brings a vision of promoting a greener, cleaner and eco-friendly environment by highlighting sustainable solutions in tribology via the development of self-lubricating materials, green additives in lubricants, natural fibre-reinforced materials and biomimetic approaches. Backed by supporting schematic diagrams, data tables and illustrations for easy understanding, the book focuses on recent advancements in tribology and sustainability. Global sustainability and regional requirements are addressed through chapters on natural composites, green lubricants, biomedical systems and wind energy systems, with a dedicated chapter on a global sustainability scenario.FEATURESHighlights sustainability via new tribological approaches and how such methods are essentialCovers the theoretical aspects of various tribological topics concerning mechanical and material designs for energy-efficient systemsIncludes practical global sustainability based on the regional requirements of tribological research and sustainable impactReviews the tribology of green lubricants, green additives and lightweight materialsDiscusses topics related to biomimetics and biotribologyTribology and Sustainability will assist researchers, professionals and graduate students in tribology, surface engineering, mechanical design and materials engineering, including mechanical, aerospace, chemical and environmental engineering.

This volume elaborates on various corrosion processes in different applications and their prevention strategies. It comprehensively covers the principles of corrosion, engineering issues, methods of corrosion protection and defines corrosion processes and control in select aggressive end industrial environments. The contents especially focus on corrosion issues in nuclear, aerospace, marine, high temperature, bioimplants, automobile, and addresses the application of advanced materials to mitigate them. A special section on corrosion prevention strategies with innovative solutions to resolve corrosion issues in various environments is the highlight of this book. This volume will be a useful guide for those in research, academia and industry, particularly to know state of art in corrosion control and prevention for various practical applications.

Water-Lubricated Journal Bearings: Marine Applications, Design, and Operational Problems and Solutions provides cutting-edge design solutions, common problems and methods for avoiding them, and material selection considerations for the use of water-lubricated journal bearings in marine environments. These bearings have many advantages, including the absence of the potential for oil contamination. They are also sensitive, and their production processes can be challenging, but this book outlines techniques and concepts designed to overcome these challenges, emphasizing their role in durable and reliable propulsion systems in modern, safe, and environment-friendly shipping. Propeller shafts, water-lubricated stern tube bearings, problems frequently encountered with water-lubricated propeller shaft bearings and sliding bearings alongside solutions to these problems are all covered, as are the hydrodynamic properties of water-lubricated bearings, operation at low revolution speeds, high-speed bearings, hybrid bearings, and more. Foundational concepts of tribology related to friction, lubrication, wear, and fluid/solid and solid/solid interactions in ship stern tube and water-lubricated turbine machinery are also discussed.

The text covers topics on the sustainability of nanomaterials in tribology, economic aspects of nanomaterials, theories, and mathematical models. It will serve as an ideal reference text for senior undergraduate, graduate students, researchers in diverse engineering domains including manufacturing, mechanical, aerospace, industrial, and materials.

Principles of Engineering Tribology: Fundamentals and Applications introduces readers to the core theories and fundamentals of the field, its basic terminology and concepts, as well as advanced topics such as the tribological properties of various engineering surfaces, roughness measurements, and the mechanics of surface contact. The fundamentals of friction and wear of metallic and non-metallic materials such as polymers, ceramics, rubbers, and composites are discussed, as are fluidic, gaseous, grease, and solid media lubrication techniques. In addition, the properties of lubricants and various types of additives incorporated are discussed, along with a methodology for conducting friction, wear and lubrication laboratory testing and an overview of simulation and modeling methods for various tribosystems. Case studies and applications are featured throughout, with a particular emphasis on analyzing failure modes of tribosystems.

This indispensable book describes lubricant additives, their synthesis, chemistry, and mode of action. All important areas of application are covered, detailing which lubricants are needed for a particular application. Laboratory and field performance data for each application is provided and the design of cost-effective, environmentally friendly technologies is fully explored. This edition includes new chapters on chlorohydrocarbons, foaming chemistry and physics, antifoams for nonaqueous lubricants, hydrogenated styrene-diene viscosity modifiers, alkylated aromatics, and the impact of REACh and GHS on the lubricant industry.

Covering energy saving technologies and how these are incorporated into component design, the book is relevant to industries including automotive engineering, and discusses the topical issue of sustainability in industry This book details recent fundamental developments in the field of tribology in industrial systems.

Civil and military aircraft - and aerospace vehicles in general - face two related problems:- They depend heavily upon electronic systems and thus must be shielded against electromagnetic interference (EMI). This interference may come in the form of lighting strikes, interference from radio emitters, nuclear electromagnetic pulses (EMP), or even high power microwave (HPM) threats- Environmental conditions including moisture, rain, and pollution from the atmosphere may corrode airframes, skin, and other bonded joints. Most importantly, this corrosion may damage the conductivity and electromagnetic shielding of the vehicleThis book addresses both problems.

This book covers sustainable composites and bio-composites in terms of proper selection of reinforcements, methods to improve the thermal and mechanical properties, techniques for uniform dispersion of the reinforcements and its tribological performance. Also, it details the testing and damage characterization methods of these composites.

The global lubricants market exceeds $110 billion, with strong future-estimated annual growth projections. While much has been written about the technical aspects of lubricant development, Lubricant Marketing, Selling, and Key Account Management fills a need for a comprehensive guide on the important commercial aspects of the business, offering unique and valuable insights from a veteran of the industry. It answers questions and offers insights on how to effectively market and sell all types of lubricants, including automotive, industrial, mining, marine, agricultural and aerospace, among others.Covers how and why people and companies buy lubricants.Instructs readers how to research and analyze markets and use the results to plan marketing and sales campaigns and activities.Details how to identify specific target market segments and sell to key lubricant accounts.Discusses how to forecast future demand for lubricants in all types of global markets.This practical book is written for technical and non-technical readers involved in the sale and management of lubricant products and offers hands-on guidance for how to successfully navigate and grow your profitability in this vitally important product sector.

This guide serves as a workbook to be used in conjunction with an approved course offered by a training partner recognized by the International Council for Machinery Lubrication (ICML) for a Machinery Lubrication Technician (MLT I or II) certification exam preparation course. The essence of this work is a guided, cooperative, and sometimes even argumentative dialogue between the authors, with continuous asking and answering of questions. This stimulates critical thinking, which in turn draws out underlying presumptions, and results in readers thinking like the person who actually built the exam. The authors are strong proponents of a unique 5-step process for learning:1. Familiarize2. Find Socrates3. Be the Exam4. Practice Exam5. ExploreThis unconventional method has proven to be exceptionally effective, not for only passing the exam, but to truly retaining the knowledge and becoming an expert in the content you’re studying. Certification requirements are discussed throughout the work, making this the ideal resource for prospective MLT I and/or MLT II certification candidates.Unique Structured learningNotes Outline: For the reader to complete. Aids in organizing ideas and thoughts.Guided Cooperative Argument: A dialogue between authors concerning the topics. Helps answer questions that are asked on the job.Statements of Truth and Exam Development: From the recommended Body of Knowledge, with space to develop your multiple-choice questions. Develops critical thinking process and understanding of how the exam questions are structured.Body of Knowledge Outline: Works as a reference to help answer any questions that may arise.Practice Exam: A mock exam designed to familiarize the reader with taking a multiple-choice test that is similar in structure and content to the real one.Glossary & Appendices: List of common terms, charts, and tables with which all certification candidates need to be familiar.

Dieses Lehr- und Grundlagenbuch gliedert das Thema Tribologie von Grund auf neu. Die Begriffe werden einheitlich definiert und eindeutig verwendet. Es zeigt die Komplexität auf, weckt das Interesse für die Tribologie und bringt Klarheit in die Wechselwirkungen zwischen Festkörper und Schmierstoffe.

Deals with the fundamentals of lubrication, friction and wear. Introducing the readers to the importance of tribology in everyday life and a brief history of the subject, this book describes the nature of rough surfaces and mechanics of contacting elastic solids and their deformation under load and friction in their relative motion.