ANALYSIS OF HYDRODYNAMIC JOURNAL BEARING WITH ELASTIC BUSHING PDF Download
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Author: Dinesh Yashwant Dhande
Publisher: Infotech Publishers
ISBN: 9783033796089
Category : Business & Economics
Languages : en
Pages : 0
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Book Description
Introduction The plain hydrodynamic journal bearing configurations are widely being used in engineering applications due to their ability to provide superior performance and relative ease in manufacturing. These bearings are subjected to more stringent and severe operating conditions. When the fluid-film bearings operate under high speed and high load, heat is generated within the oil film due to the shearing of the lubricant, and the temperature rise of the lubricating fluid film and the bearing surface takes place. This causes a significant reduction of the viscosity of the lubricant which in turn reduces the minimum fluid-film thickness. Thus, the flow field of the lubricant is modified, which affects the bearing performance. Also, the plain journal-bearing system undergoes elastic deformation when operating under heavy loads.
Author: Dinesh Yashwant Dhande
Publisher: Infotech Publishers
ISBN: 9783033796089
Category : Business & Economics
Languages : en
Pages : 0
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Book Description
Introduction The plain hydrodynamic journal bearing configurations are widely being used in engineering applications due to their ability to provide superior performance and relative ease in manufacturing. These bearings are subjected to more stringent and severe operating conditions. When the fluid-film bearings operate under high speed and high load, heat is generated within the oil film due to the shearing of the lubricant, and the temperature rise of the lubricating fluid film and the bearing surface takes place. This causes a significant reduction of the viscosity of the lubricant which in turn reduces the minimum fluid-film thickness. Thus, the flow field of the lubricant is modified, which affects the bearing performance. Also, the plain journal-bearing system undergoes elastic deformation when operating under heavy loads.
Author: J. Frene
Publisher: Elsevier
ISBN: 0080534317
Category : Technology & Engineering
Languages : en
Pages : 499
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Book Description
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.
Author: R. R. Huilgol
Publisher:
ISBN:
Category : Journal bearings
Languages : en
Pages : 220
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Book Description
Author: Kevin Amith Mathias
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659341403
Category :
Languages : en
Pages : 84
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Book Description
This book mainly focuses on the understanding of basic concepts related Hydrodynamic Lubrication. In this more emphasis is given on steadily loaded oil film Journal Bearings. It includes discussion on derivation of generalised Reynold's equation for specific cases of Journal Bearing. In case of steadily loaded Journal Bearings viscosity is assumed to constant. But in reality because of rise in temperature, viscosity of oil film changes. In this book effect of variation of viscosity on the performance of Journal bearing is discussed. Plots of steady state, dynamic and thermo-hydrodynamic analysis are included in this book.
Author: David MacLeish. Smith
Publisher: Springer Science & Business Media
ISBN: 1475756232
Category : Science
Languages : en
Pages : 179
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Book Description
This book deals with the functioning of hydrodynamic journal bearings in turbomachinery. It makes particular reference to large turbine generator and marine propulsion plant. Journal-bearing design in this field has been based mainly on experience supplemented by full-scale experimental test. Development is becoming influenced to an increasing extent by research and analysis. Particular attention is given in this book to correlation of research and analytical work with the observed operating characteristics of journal bearings. The physical phenomena in bearings are complicated, and analysis is rendered convenient only by making simplifying assumptions. The engineer must know which assumptions are serviceable and in what operating conditions they may be applied. Current British and European practice in journal bearings is illus trated. An examination is made of steady running characteristics, as predicted by theory and as established by test. Some account is given of the dynamic characteristics of journal bearings and of their in fluence in machine vibration. Service experience of journal bearings is reviewed, and reference is made to possible future trends in develop ment. The book is the outcome of work on turbine plant with Metropolitan Vickers and its successor Associated Electrical Industries. The A.E.!. and English Electric activities in this field have recently been incor porated in English Electric-A.E.!. Turbine-Generators Ltd. The author expresses his gratitude to the Company for permission to publish the results. He thanks the English Electric Co. Ltd., C. A.
Author: R. W. Jakeman
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: Richard J. Rossbach
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 238
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Book Description
Author: R. J. Rossbach
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 236
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Book Description
Author: M. A. Koenders
Publisher:
ISBN:
Category : Fluid-film bearings
Languages : en
Pages : 36
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Book Description
Author: Wojciech Litwin
Publisher: Elsevier
ISBN: 0443134588
Category : Technology & Engineering
Languages : en
Pages : 280
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Book Description
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 use of water lubricated journal bearings in marine environments. These bearings have many advantages, among them 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. - Provides cutting-edge design solutions and material selection considerations for water-lubricated journal bearings - Outlines common problems and solutions for overcoming them when working with water-lubricated propeller shaft bearings, sliding bearings, and hybrid bearings - Presents theoretical and experimental research on bearings, including the influence of bush shape imperfections and misalignment
