**Fundamentals of Fluid Film Lubrication 2nd Edition by Bernard J. Hamrock, Steven R. Schmid, Bo O. Jacobson.**

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Contents:

1 Introduction

2 Bearing Classification and Selection

3 Surface Topography

4 Lubricant Properties

5 Bearing Materials

6 Viscous Flow

7 Reynolds Equation

8 Hydrodynamic Thrust Bearings - Analytical Solutions

9 Hydrodynamic Thrust Bearings - Numerical Solutions

10 Hydrodynamic Journal Bearings - Analytical Solutions

11 Hydrodynamic Journal Bearings - Numerical Solutions

12 Hydrodynamic Squeeze Film Bearings

13 Hydrostatic Lubrication

14 Gas-Lubricated Thrust Bearings

15 Gas-Lubricated Journal Bearings

16 Hydrodynamic Lubrication of Nonconformal Surfaces

17 Simplified Solutions for Stresses and Deformations

18 Elastohydrodynamic Lubrication of Rectangular Conjunctions

19 Elastohydrodynamic Lubrication of Elliptical Conjunctions

20 Film Thicknesses for Different Regimes of Fluid Film Lubrication

21 Rolling Element Bearings

22 Additional Lubrication Applications

23 Thermohydrodynamic and Thermoelastohydrodynamic Lubrication

A Calculation of Elastic Deformations

B Corrections to Be Applied to Weighting Factors Due to A^

C Calculation of Jacobian Factors

D Definition of Weighting Factors

__Preface:__ The title of this book was specifically chosen as Fundamentals Lubricatiob, rather than the more general title of tribology, since fluid film lubrication is the book's primary emphasis. Fluid Rim lubrication occurs when opposing bearing surfaces are completely separated by a lubricant film. Hydrodynamic and elastohydrodynamic lubrication are modes of fluid film lubrication and are emphasized throughout this text, whereas boundary lubrication is given lesser treatment. The reason for this slant of the book is that fluid film lubrication has been the focal point of research throughout the authors' professional

careers.

It has been almost ten years since the first edition of the text was published. During the intervening years significant developments have occurred in some areas that were covered in the first edition. The second edition reflects these developments. Specifically, the methodology used in the chapters on Hydrodynamic Thrust and Journal Bearings - Numerical Solutions has been altered. Also, material in general has been updated.

In addition, the second edition adds the following pedagogical devices to improve understanding

▪️ Symbols lists are given in each chapter, defining the symbols within the chapter and giving their units for use in unit checks within equations. The first edition had a symbols list for the entire text at the front of the text

▪️ Worked examples are presented when a new concept is introduced to reinforce understanding. The first edition had 25 examples while the second has significantly more. Each example uses a consistent problemsolving format.

▪️ End of chapter problems - the second edition uses significantly more problems to solidify understanding of the chapter material and stimulate thinking and creativity. The problems range from simple to complex.

In order to keep the text the same length as the first edition four chapters had to be eliminated in the second edition.

The organization of the text is such that it is divided into three parts. The first part covers the fundamentals required in understanding fluid film lubrication. That is, an understanding of surface characterization (Chapter 3), lubricant properties (Chapter 4), bearing materials (Chapter 5), viscous flow (Chapter G), and the Reynolds equation (Chapter 7) is important in understanding fluid film lubrication. The second part of the book then covers hydrodynamic lubrication (Chapters 8 to 16), and the third part covers elastohydrodynamic lubrication (Chapters 17 to 23).

Hydrodynamic lubrication can be achieved by sliding motion (as discussed in Chapters 8 to 11), by squeeze motion (as discussed in Chapter 12), and by external pressurization (as discussed in Chapter 13). Generally, in hydrodynamic lubrication, oil is the lubricant. However, as discussed in Chapters 14 and 15, gas can be an effective lubricant in certain applications.

The treatment of elastohydrodynamic lubrication begins with the consideration of elasticity effects in Chapters 17 and 18. Elastohydrodynamic lubrication of rectangular conjunctions is considered in Chapter 19 and of elliptical conjunctions in Chapter 20. Film thicknesses for different fluid film lubrication regimes are presented in Chapter 21. In Chapters 22 and 23 the theory of lubrication is applied to a range of lubricated conjunctions: in roller and ball beaj'ings: between a ball and a Hat plate; between concave and convex surfaces; in power transmission devices such as involute gears and variable-speed drives; between a railway wheel and wet or oily rails; in manufacturing operations; and finally, in synovial joints.

Throughout the book emphasis is given to deriving formulas from basic theory and providing physical understanding of these formulas. Although at times this proves to be lengthy, the authors believe it is important that the reader develop a firm understanding of how information provided in design charts has been obtained. Also the importance and influence of the assumptions made in all derivations based on the theory are discussed. The assumptions emphasize the limits to which the results of the derivations are valid and applicable. The application of the theory to the design of machine elements that use fluid film lubrication helps the development of the material of the text. It is, however, not intended to consider all types of machine element and all types of bearing within this text. Rather I hope that the understanding gained from this book will enable the reader to properly analyze any machine element that uses fluid film lubrication. The material in this book in its entirety is best suited for a one-semester course (15 weeks of 3 hours of lecture per week), but a somewhat shortened version can be given in a one-quarter course (10 weeks of 3 hours of lecture per week). The book was written for senior undergraduate and graduate engineering students. Engineers who encounter machine elements that use fluid film lubrication should also find this book useful.

This book was typeset in fATgXusing the package TexShop by Richard Koch, et al., (http://darkwing.uoregon.edu/ koch/texshop/texshop.html) on a Macintosh computer. All graphics were prepared using the graphics program Adobe Illustrator.

**Fundamentals of Fluid Film Lubrication 2nd Edition by Bernard J. Hamrock, Steven R. Schmid, Bo O. Jacobson pdf.**

Book Details:

⏩Edition: 2nd

⏩Authors: Bernard J. Hamrock, Steven R. Schmid, Bo O. Jacobson

⏩Publisher: CRC Press; 2 edition (March 15, 2004)

⏩Puplication Date: March 15, 2004

⏩Language: English

⏩Pages: 703

⏩Size: 37.8 MB

⏩Format: PDF

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