Applied tribology : bearing design and lubrication / Michael Khonsari, Earl Richard Booser.

Format:

Book

Author/Creator:

Khonsari, Michael M., author.

Booser, E. Richard, author.

Series:

Tribology series.

Tribology Series

Language:

English

Subjects (All):

Tribology.

Bearings (Machinery)--Design and construction.

Bearings (Machinery).

Physical Description:

1 online resource (654 pages) : illustrations, tables.

Edition:

Third Edition.

Place of Publication:

Hoboken, New Jersey : Wiley, 2017.

Summary:

Insightful working knowledge of friction, lubrication, and wear in machines Applications of tribology are widespread in industries ranging from aerospace, marine and automotive to power, process, petrochemical and construction. With world-renowned expert co-authors from academia and industry, Applied Tribology: Lubrication and Bearing Design, 3rd Edition provides a balance of application and theory with numerous illustrative examples. The book provides clear and up-to-date presentation of working principles of lubrication, friction and wear in vital mechanical components, such as bearings, seals and gears. The third edition has expanded coverage of friction and wear and contact mechanics with updated topics based on new developments in the field. Key features: * Includes practical applications, homework problems and state-of-the-art references. * Provides presentation of design procedure. * Supplies clear and up-to-date information based on the authors' widely referenced books and over 500 archival papers in this field. Applied Tribology: Lubrication and Bearing Design, 3rd Edition provides a valuable and authoritative resource for mechanical engineering professionals working in a wide range of industries with machinery including turbines, compressors, motors, electrical appliances and electronic components. Senior and graduate students in mechanical engineering will also find it a useful text and reference.

Contents:

Intro

Applied Tribology

Contents

Series Preface

Preface: Third Edition

Preface: Second Edition

About the Companion Website

Part I General Considerations

1 Tribology - Friction, Wear, and Lubrication

1.1 History of Tribology

Friction

Wear

Bearing Materials

Lubricants

Fluid-Film Bearings

Rolling Element Bearings

Nanotribology and Surface Effects

1.2 Tribology Principles

Dry Sliding

Fluid-Film Lubrication

Elastohydrodynamic Lubrication (EHL)

Boundary Lubrication

1.3 Principles for Selection of Bearing Types

Mechanical Requirements

Environmental Conditions

Economics

1.4 Modernization of Existing Applications

1.5 A Look Ahead

Dry and Semilubricated Bearings

Ball and Roller Bearings

References

2 Lubricants and Lubrication

2.1 Mineral Oils

2.2 Synthetic Oils

2.3 Viscosity

Viscosity Classifications

Viscosity-Temperature Relations

Viscosity-Pressure Relations

EHL Pressure-Viscosity Coefficients

2.4 Free Volume Viscosity Model

2.5 Density and Compressibility

2.6 Thermal Properties

2.7 Non-Newtonian Lubricants

Viscoelastic Effect

2.8 Oil Life

2.9 Greases

Oils in Greases

Thickeners

Mechanical Properties

2.10 Solid Lubricants

2.11 Lubricant Supply Methods

Self-Contained Units

Circulating Oil Systems

Centralized Lubrication Systems

3 Surface Texture, Interaction of Surfaces and Wear

3.1 Geometric Characterization of Surfaces

3.2 Surface Parameters

Amplitude Parameters

Spacing and Shape Parameters

Hybrid Parameters

3.3 Measurement of Surface Texture

Contacting Methods

Noncontacting Methods

3.4 Measurement of Surface Flatness

3.5 Statistical Descriptions

3.6 Surface Texture Symbols

3.7 Contact Between Surfaces.

Micro-Contact Considerations: Deformation of Single Asperity

Contact of a Rough Flat Surface and a Smooth Flat Surface (Greenwood and Williamson-Based Models)

Contact of Two Rough Surfaces

Relationship Between Surface Features and GW Parameters

The Asperity Plasticity Index

Contact of Curved Surfaces

3.8 Temperature Rise in Sliding Surfaces

3.9 Lubrication Regime Relation to Surface Roughness

3.10 Friction

3.11 Wear

Adhesive Wear

Prediction of Adhesive Wear

Derivation and Interpretation of Archards Adhesive Wear Equation

Physical Meaning of the Wear Coefficient in Adhesive Wear

The Fatigue Theory of Adhesive Wear

Interpretation of Wear Coefficient by Fatigue Analysis

The Delamination Theory of Wear

Interpretation of the Wear Coefficient by the Delamination Theory

Abrasive Wear

Abrasive Wear Rate and Abrasive Wear Coefficient

Corrosive Wear

Surface Fatigue, Brittle Fracture, Impact, Erosion

Thermodynamics of Wear

Classification of Wear, Failure, and Wear Maps

Dry Bearing Wear Life

Lubricated Wear

General Progression of Wear

Effect of Load and Speed in Bearings

Means of Wear Reduction

4 Bearing Materials

4.1 Distinctive Material Selection Factors

Compatibility

Embedability and Conformability

Strength

Corrosion Resistance

Thermal Properties

4.2 Oil-Film Bearing Materials

Babbitts

Copper Alloys

Aluminum

Cast Iron and Steel

Silver

Zinc

4.3 Dry and Semilubricated Bearing Materials

Plastics

Carbon-Graphite

Rubber

Wood

4.4 Air Bearing Materials

Foil Air Bearings

Air Lifts

Computer Hard Disk Drives

4.5 High-Temperature Materials

4.6 Rolling Bearing Materials

Polycrystalline Diamond (PCD)

Part II Fluid-Film Bearings

5 Fundamentals of Viscous Flow.

5.1 General Conservation Laws

5.2 Conservation of Mass

Cartesian Coordinates

Cylindrical Coordinates

5.3 Conservation of Momentum

Newtonian Fluids

5.4 Conservation of Energy

5.5 Petroff's Formula

5.6 Viscometers

Capillary Tube Viscometer

Rotational Viscometers

5.7 Nondimensionalization of Flow Equations

5.8 Nondimensionalization of the Energy Equation

5.9 Order-of-Magnitude Analysis

Comparison of Inertia Terms and Viscous Terms

Contribution of Gravity

Contribution of the Pressure Term

Comparison of Pressure and Viscous Forces

6 Reynolds Equation and Applications

6.1 Assumptions and Derivations

Navier-Stokes Equations

Boundary Conditions

Conservation of Mass

General Reynolds Equation

Standard Reynolds Equation

6.2 Turbulent Flows

6.3 Surface Roughness

6.4 Nondimensionalization

6.5 Performance Parameters

6.6 Limiting Cases and Closed-Form Solutions

A Simplified Form of Reynolds Equation for Steady Film

6.7 Application: Rayleigh Step Bearing

Optimization of Load-Carrying Capacity

6.8 Numerical Method

7 Thrust Bearings

7.1 Thrust Bearing Types

7.2 Design Factors

7.3 Performance Analysis

7.4 Tapered-Land Thrust Bearings

Temperature Rise

7.5 Pivoted-Pad Thrust Bearings

7.6 Step Thrust Bearings

7.7 Spring-Mounted Thrust Bearings

7.8 Flat-Land Thrust Bearings

7.9 Maximum Bearing Temperature Based on Thermohydrodynamic Analysis

7.10 Parasitic Power Losses

1. Through-Flow Loss

2. Surface Drag Losses

Possible Methods for Reducing Parasitic Losses

7.11 Turbulence

8 Journal Bearings

8.1 Introduction

Film Thickness Profile

8.2 Full-Arc Plain Journal Bearing with Infinitely Long Approximation (ILA).

8.3 Boundary Conditions

8.4 Full-Sommerfeld Boundary Condition

Load-Carrying Capacity Based on Full-Sommerfeld Condition

8.5 Definition of the Sommerfeld Number

8.6 Half-Sommerfeld Boundary Condition

8.7 Cavitation Phenomena

Gaseous Cavitation

Vapor Cavitation

8.8 Swift-Stieber (Reynolds) Boundary Condition

8.9 Infinitely Short Journal Bearing Approximation (ISA)

8.10 Full- and Half-Sommerfeld Solutions for Short Bearings (ISA)

8.11 Bearing Performance Parameters

Leakage Flow Rate and Friction Coefficient

8.12 Finite Journal Bearing Design and Analysis

Tabulated Dimensionless Performance Parameters

8.13 Attitude Angle for Other Bearing Configurations

8.14 Lubricant Supply Arrangement

Supply Hole

Axial Groove

Circumferential Groove

Spiral Grooves

8.15 Flow Considerations

Holes or Axial Grooves

Axial Flow Due to Rotation

Pressure-Induced Flow

Total Leakage Flow Rate

8.16 Bearing Stiffness, Rotor Vibration, and Oil-Whirl Instability

8.17 Tilting Pad Journal Bearings

8.18 General Design Guides

Effective Temperature

Maximum Bearing Temperature

Maximum Bearing Temperature and Effective Temperature Base on Thermohydrodynamic Analysis

Supply Temperature and Bearing Whirl Instability

Turbulent and Parasitic Loss Effects

Flooded versus Starved Condition

Bearing Load and Dimensions

Lift-Off Speed

Eccentricity and Minimum Film Thickness

Operating Clearance

Thermally Induced Seizure

Misalignment and Shaft Deflection

9 Squeeze-Film Bearings

9.1 Introduction

9.2 Governing Equations

9.3 Planar Squeeze Film

Two Parallel Circular Disks

Shape Variation: Elliptical Disks

9.4 Generalization for Planar Squeeze Film

9.5 Nonplanar Squeeze Film

Sphere Approaching a Plate.

Expressions for Several Nonplanar Squeeze-Film Geometries

9.6 Squeeze Film of Finite Surfaces

Finite Planar Squeeze Film

Squeeze Film of Finite Nonplanar Bodies

Combined Squeeze and Rotational Motion

9.7 Piston Rings

Friction Force and Power Loss

10 Hydrostatic Bearings

10.1 Introduction

Heavily Loaded Precision Machinery

Hydrostatic Oil Lifts

Severe Operating Conditions

Stadium Mover/Converter

10.2 Types and Configurations

10.3 Circular Step Thrust Bearings

Pressure Distribution and Load

Load-Carrying Capacity

Flow Rate Requirement

Bearing Stiffness

Friction Torque

System Power Loss

Film Power Loss

Pumping Power Loss

Optimization

Thermal Effects and Typical Operating Conditions

10.4 Capillary-Compensated Hydrostatic Bearings

Governing Equations

Stiffness and Optimization

10.5 Orifice-Compensated Bearings

10.6 Design Procedure for Compensated Bearings

10.7 Generalization to Other Configurations

Pressure Factor

Flow Factor

Power Loss Factor, Hf

10.8 Hydraulic Lift

11 Gas Bearings

11.1 Equation of State and Viscous Properties

Equation of State

Viscous Properties

11.2 Reynolds Equation

Restrictions and Limitation

Limiting Cases

11.3 Closed-Form Solutions

Infinitely Long Tapered-Step and Slider Bearings

Infinitely Long Journal Bearings

11.4 Finite Thrust Bearings

Rectangular Thrust Bearings

Sector-Pad Thrust Bearings

Design Procedure for Tilting-Pad Thrust Bearings

11.5 Finite Journal Bearings

Steady-State Performance

Angular Stiffness and Misalignment Torque

Whirl Instability

11.6 Tilting-Pad Journal Bearings

11.7 Foil Gas Bearings

Coupling between Hydrodynamics and Structure

Analysis.

Limiting Speed Analysis.

Notes:

Includes bibliographical references at the end of each chapters and index.

Description based on print version record.

ISBN:

9781118700266

1118700260

9781118700259

1118700252

9781118700280

1118700287

OCLC:

1001289453