A Thermo-elasto-hydrodynamic Study of Journal Bearings PDF Download
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Author: Norman Owen Freund
Publisher:
ISBN:
Category : Bearings (Machinery)
Languages : en
Pages : 872
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Book Description
Author: Norman Owen Freund
Publisher:
ISBN:
Category : Bearings (Machinery)
Languages : en
Pages : 872
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Book Description
Author: D. Dowson
Publisher: Elsevier
ISBN: 1483181898
Category : Technology & Engineering
Languages : en
Pages : 254
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Book Description
Elasto-Hydrodynamic Lubrication deals with the mechanism of elasto-hydrodynamic lubrication, that is, the lubrication regime in operation over the small areas where machine components are in nominal point or line contact. The lubrication of rigid contacts is discussed, along with the effects of high pressure on the lubricant and bounding solids. The governing equations for the solution of elasto-hydrodynamic problems are presented. Comprised of 13 chapters, this volume begins with an overview of elasto-hydrodynamic lubrication and representation of contacts by cylinders, followed by a discussion on equations relevant to lubrication, including the Reynolds equation. The reader is then introduced to lubrication of rigid cylinders; the importance of film thickness in highly loaded rigid contacts; the elasticity of solids in contact; and the theory of elasto-hydrodynamic lubrication. Subsequent chapters focus on apparatus and measurements of film thickness and film shape; friction and viscosity; and lubrication of gears and roller bearings. This book will be of interest to tribologists.
Author: Dominique Bonneau
Publisher: John Wiley & Sons
ISBN: 1119008034
Category : Mathematics
Languages : en
Pages : 176
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Book Description
This Series provides the necessary elements to the development and validation of numerical prediction models for hydrodynamic bearings. This book describes the thermo-hydrodynamic and the thermo-elasto-hydrodynamic lubrication. The algorithms are methodically detailed and each section is thoroughly illustrated.
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: 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: Sang Chun (Myung)
Publisher:
ISBN:
Category :
Languages : en
Pages : 390
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Book Description
Author: Andreas Lehn
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Arun Kumar
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 182
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Book Description
Author: Frederick T. Schuller
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 28
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Book Description
Author: Hany S. Abdo
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659529399
Category :
Languages : en
Pages : 132
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Book Description
This book is concerned with theoretical study for the thermal effects of the hydrodynamic journal bearings lubricated by ferrofluids with couple stresses. The study is generalize such that it covered both Newtonian and non-Newtonian behavior of the lubricant. Based on the momentum and continuity equations for ferrofluid under an applied magnetic field, a pressure differential equation (modified Reynolds equation) has been obtained. Assuming linear behavior for the magnetic material of the ferrofluid, and using carrying current concentric finite wire magnetic field model, the magnetic force was calculated. A modified Reynolds equation is obtained and it is simultaneously solved with the energy equation numerically by the finite difference technique. The pressure and temperature distributions have been obtained. The solution renders the bearing performance characteristics namely; load carrying capacity, attitude angle of the journal center, frictional force at the journal surface, friction coefficient and bearing side leakage.
