Download or read book Anti Friction Bearings and Lubricants Under Electric Current written by Har Prashad and published by LAP Lambert Academic Publishing. This book was released on 2011-10 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book basically covers analysis of anti-friction bearings and lubricants under electric current in 9 Chapters including that of threshold voltage phenomenon, start/stop characteristics, electrical parameters of bearings, capacitive effects, deterioration of lubricants, and bearing failure under shaft voltages. Theoretical procedure to establish, capacitance, resistance, capacitive reactance, impedance, pitch of corrugations, and charge accumulation on surfaces of bearings is given that originates the new methodology for the diagnosis of bearings. Also, the decrease in life span of bearings, lubricant resistivity, recovery/recouping of resistivity under the influence of different levels of voltages has been established. The dynamic coefficients of anti-friction bearings have been determined using an electrical analogy approach beside determination of minimum cycles before craters and corrugations are formed on the active surface of bearings.
Download or read book Tribology in Electrical Environments written by H. Prashad and published by Elsevier. This book was released on 2005-12-12 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarises work done and experience gained over the past three decades in the area of tribology in electrical environments. It takes a close look at behaviour and response characteristics of rolling-element, and hydrodynamic journal & thrust bearings working under the influence of electrical current. Detailed analysis plugs the existing knowledge gaps in the area of tribology in electrical environments. This is because the genesis of intermolecular forces during tribological interaction involves electrostatic attraction or repulsion that creates electro-dynamic, magnetic and exchange forces between atoms. Therefore all tribological phenomena occurring in any interacting system is electrical in nature. Keep your collection up-to date with the latest volume from Elsevier's Tribology and Interface Engineering Book Series Includes ‘real life' case studies
Download or read book Viscous Properties of Plastic Lubricants and Rotational Resistance of Anti friction Bearings written by G. V. Vinogradov and published by . This book was released on 1954 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering and Design written by SKF Industries, inc and published by . This book was released on 1924 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Anti Friction Bearings and Their Lubrication written by Socony-Vacuum Oil Company and published by . This book was released on 1953 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Maintenance of Aeronautical Antifriction Bearings written by United States. Navy Department. Bureau of Aeronautics and published by . This book was released on 1955 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: The instructions and information contained in this handbook are proposed to cover the handling and maintenance of a bearing from the time it is received in Supply stock from the prime manufacturer until it is rejected as unfit for aeronautical use.
Download or read book Solving Tribology Problems in Rotating Machines written by H. Prashad and published by Woodhead Publishing. This book was released on 2006-01-31 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bearings are widely used in rotating machines. Understanding the factors affecting their reliability and service life is essential in ensuring good machine design and performance. Solving tribology problems in rotating machines reviews these factors and their implications for improved machine performance. The first two chapters review ways of assessing the performance and reliability of rolling-element bearings. The author then goes on to discuss key performance problems and the factors affecting bearing reliability. There are chapters on cage and roller slip, and particular types of failure in equipment such as alternators, condensers and pumps. The author also reviews the effects of such factors as localised electrical currents, seating, clearance, grades of lubricant, axial forces, vibration on performance and service life. The book concludes by reviewing ways of improving bearing design. Solving tribology problems in rotating machines is an essential reference for engineers involved in the design and operation of rotating machines in such sectors as power generation, electrical and automotive engineering. Discusses improved machine performance Examines factors affecting bearing reliability An essential reference for engineers
Download or read book Reliability in Scientific Research written by I. R. Walker and published by Cambridge University Press. This book was released on 2011-01-27 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering many techniques widely used in research, this book will help researchers in the physical sciences and engineering solve troublesome - and potentially very time consuming - problems in their work. The book deals with technical difficulties that often arise unexpectedly during the use of various common experimental methods, as well as with human error. It provides preventive measures and solutions for such problems, thereby saving valuable time for researchers. Some of the topics covered are: sudden leaks in vacuum systems, electromagnetic interference in electronic instruments, vibrations in sensitive equipment, and bugs in computer software. The book also discusses mistakes in mathematical calculations, and pitfalls in designing and carrying out experiments. Each chapter contains a summary of its key points, to give a quick overview of important potential problems and their solutions in a given area.
Download or read book Resistivity an Online Monitoring Parmeter for Antifriction Bearings written by Surendra Pal Singh Matharu and published by LAP Lambert Academic Publishing. This book was released on 2012-03 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The condition monitoring of rolling element bearings is becoming critical with advancement of technology. The existing major monitoring methods such as Vibration Signature Analysis, Acoustic Emission Measurement, Measurement of lubricant film thickness using Ultrasound Transducer or Strain Gages, Interferometric measurement of lubricant film thickness, etc. are either expensive or applicable after some wear has been set in or cannot be used for online condition monitoring of antifriction bearings. There always exists a possibility for development of a condition monitoring method which is simple, inexpensive and reliable. Keeping this in view, a new methodology has been developed for determination of lubricant film thickness based on Hertz contact theory. The formula for lubricant film thickness requires electrical resistivity of lubricant as one of the parameter. Thus, an inexpensive experimental setup is developed for determination of electrical resistivity of liquid lubricants and the results are validated in the work. The proposed method shows variation of lubricant film thickness during operation of bearing thus can be used for Predictive Online Condition Monitoring.
Download or read book Fundamentals of Fluid Film Lubrication written by Bernard J. Hamrock and published by CRC Press. This book was released on 2004-03-15 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specifically focusing on fluid film, hydrodynamic, and elastohydrodynamic lubrication, this edition studies the most important principles of fluid film lubrication for the correct design of bearings, gears, and rolling operations, and for the prevention of friction and wear in engineering designs. It explains various theories, procedures, and equations for improved solutions to machining challenges. Providing more than 1120 display equations and an introductory section in each chapter, Fundamentals of Fluid Film Lubrication, Second Edition facilitates the analysis of any machine element that uses fluid film lubrication and strengthens understanding of critical design concepts.
Download or read book Tribology a systems approach to the science and technology of friction lubrication and wear written by and published by Elsevier. This book was released on 2009-06-01 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tribology: a systems approach to the science and technology of friction, lubrication, and wear
Download or read book Hydrodynamic Lubrication written by J. Frene and published by Elsevier. This book was released on 1997-11-10 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrodynamic Lubrication is the culmination of over 20 years close, collaborative work by the five authors and discusses the practical use of the formalization of low pressure lubrication. The work concentrates on the developments to journal and thrust bearings and includes subjects such as: • the dynamic behaviour of plain and tilting-pads • the thermal aspects • the positive and negative effects of non-cyclindricity and shape defects resulting from manufacturing or operation • the effects of inertia • the appearance of Taylor's vortices and of turbulence and their repercussions. The book contains an abundance of test results objectively compared with theoretical conclusions and a chapter on "technical considerations" to ensure that draft mechanisms will work satisfactorily under the imposed conditions. Hydrodynamic Lubrication is an essential reference book for future and practising engineers who want to put hydrodynamic and hydrostatic journal bearings and thrust bearings into operation under conditions of total safety.
Download or read book Hydrostatic Lubrication written by R. Bassani and published by Elsevier. This book was released on 1992-08-20 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrostatic lubrication is characterized by the complete separation of the conjugated surfaces of a kinematic pair, by means of a film of fluid, which is pressurized by an external piece of equipment. Its distinguishing features are lack of wear, low friction, high load capacity, a high degree of stiffness and the ability to damp vibrations. This book reviews the study of externally pressurized lubrication, both from the theoretical and the technical point of view, thereby serving the needs of both researchers as well as students and technical designers. In this connection, design suggestions for the most common types of hydrostatic bearings have been included, as well as a number of examples. A comprehensive bibliography is included with each chapter providing up to date references for more in depth coverage.
Download or read book Maintenance of Aeronautical Antifriction Bearings written by United States. Bureau of Naval Weapons and published by . This book was released on 1965 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This material represents significant changes between the original D 202.6: 38 and the present D 217.14:B 38. The changes represented by D 202.6: 38/CHANGE/1 were partial additions to the original material.
Download or read book High temperature Lubrication of Electric Motor Ball Bearings written by U. S. Naval Research Laboratory, Washington, D.C. and published by . This book was released on 1952 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lubrication and Maintenance of Antifriction Bearings written by and published by . This book was released on 1958 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lubrication written by and published by . This book was released on 1926 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
