Prashad, Har.
Tribology in electrical environments / Har Prashad. - 1 online resource (xviii, 494 pages) : illustrations, 1 portrait. - Tribology and interface engineering series ; 49 . - Tribology and interface engineering series ; 49. .
Includes bibliographical references and index.
Cover -- Contents -- Preface -- About the Author -- Chapter 1. ANALYSIS OF BEARINGS AND LUBRICANTS IN ELECTRICAL ENVIRONMENTS: A STATE-OF-THE-ART REVIEW -- 1.1 Introduction -- 1.2 Rolling-Element Bearings -- 1.3 Lubricants -- 1.4 Hydrodynamic Journal Bearings -- 1.5 Hydrodynamic Thrust Bearings -- 1.6 Conclusions -- References -- Chapter 2. SHAFT VOLTAGES AND THEIR ORIGIN IN ROTATING MACHINES AND FLOW OF ELECTRIC CURRENT THROUGH BEARINGS -- 2.1 Introduction -- 2.2 Causes for the Origin of Shaft Voltages -- 2.3 Factors Affecting the Shaft Voltages -- 2.4 Reasons for Epidemic Shaft Current Problems -- 2.5 Passage of Current Through Bearings -- 2.6 Bearing Electrical Parameters -- 2.7 Conclusions -- Chapter 3. BEHAVIOR OF LUBRICANTS IN ROLLING-ELEMENT BEARINGS UNDER THE INFLUENCE OF ELECTRIC CURRENT -- 3.1 Introduction -- 3.2 The Experimental Facilities -- 3.3 The Experimental Procedure -- 3.4 Discussion on the Results -- 3.5 Conclusions -- References -- Chapter 4. THRESHOLD VOLTAGE PHENOMENON AND EFFECT OF OPERATING PARAMETERS ON THE THRESHOLD VOLTAGE IN ROLLING-ELEMENT BEARINGS -- 4.1 Bearing Threshold Voltage -- 4.2 Test Set-Up and Investigations -- 4.3 Theoretical -- 4.4 Influence of the Operating Parameters and Lubricant Characteristics on Threshold Voltages -- 4.5 Phenomenon of Bearing Impedance -- 4.6 Influence of the Operating Parameters and Minimum Film Thickness on Bearing Impedance -- 4.7 Different Types of Bearing Failure -- 4.8 Conclusions -- References -- Chapter 5. EFFECT OF ELECTRIC CURRENT ON THE TRACK SURFACES OF ROLLING-ELEMENT BEARINGS -- 5.1 A General Review -- 5.2 Process of Formation of Corrugations -- 5.3 Theoretical Determination of Pitch and Width of Corrugations on Roller Track of Races and Rollers of Roller Bearings -- 5.4 Theoretical Determination of Pitch and Width of Corrugations on Ball Track of Races and Balls of Ball Bearings -- 5.5 Experimental Investigations -- 5.6 Effect of Various factors on Corrugations and on Bearing Surfaces -- 5.7 Discussion on Various Aspects of Corrugations -- 5.8 Conclusions -- References -- Chapter 6. ELECTRICAL PARAMETERS OF ROLLING-ELEMENT BEARINGS -- 6.1 Introduction -- 6.2 Electrical Parameters of Roller Bearings -- 6.3 Electrical Parameters of Ball Bearings -- 6.4 Data Under Different Operating Parameters -- 6.5 Review of Results -- 6.6 Conclusions -- References -- Chapter 7. LIFE ESTIMATION OF ROLLING-ELEMENT BEARINGS DUE TO THE EFFECT OF CURRENT LEAKAGE -- 7.1 General -- 7.2 Theoretical Analysis of Life Estimation of Roller Bearings -- 7.3 Theoretical Analysis of Life Estimation of Ball Bearings -- 7.4 Capacitive Effect of Rolling-Element Bearings -- 7.5 Thermal Stresses Due to Thermal Transients on Rolling-Element Track Surfaces of Races -- 7.6 Determination of Number of Cycles Before the Initiation of Slip Bands and Craters Formation on Rolling-Element Tracks of Races, and Data Derived -- 7.7 Discussion of Results -- 7.8 Conclusions -- References -- Chapter 8. ANALYSIS OF CAPACITIVE EFFECT OF ROLLER BEARINGS ON REPEATED STARTS AND STOPS OF A MACHINE -- 8.1 Introduction -- 8.
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 and 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.
9780444518804 0444518800 9780080521589 (electronic bk.) 0080521584 (electronic bk.)
109296:109342 Elsevier Science & Technology http://www.sciencedirect.com
Tribology.
Electricity.
TECHNOLOGY & ENGINEERING--Tribology.
Electricity.
Tribology.
Electronic books.
TJ1061 / .P73 2006eb TJ1075 / .P73 2006eb
621.89
Tribology in electrical environments / Har Prashad. - 1 online resource (xviii, 494 pages) : illustrations, 1 portrait. - Tribology and interface engineering series ; 49 . - Tribology and interface engineering series ; 49. .
Includes bibliographical references and index.
Cover -- Contents -- Preface -- About the Author -- Chapter 1. ANALYSIS OF BEARINGS AND LUBRICANTS IN ELECTRICAL ENVIRONMENTS: A STATE-OF-THE-ART REVIEW -- 1.1 Introduction -- 1.2 Rolling-Element Bearings -- 1.3 Lubricants -- 1.4 Hydrodynamic Journal Bearings -- 1.5 Hydrodynamic Thrust Bearings -- 1.6 Conclusions -- References -- Chapter 2. SHAFT VOLTAGES AND THEIR ORIGIN IN ROTATING MACHINES AND FLOW OF ELECTRIC CURRENT THROUGH BEARINGS -- 2.1 Introduction -- 2.2 Causes for the Origin of Shaft Voltages -- 2.3 Factors Affecting the Shaft Voltages -- 2.4 Reasons for Epidemic Shaft Current Problems -- 2.5 Passage of Current Through Bearings -- 2.6 Bearing Electrical Parameters -- 2.7 Conclusions -- Chapter 3. BEHAVIOR OF LUBRICANTS IN ROLLING-ELEMENT BEARINGS UNDER THE INFLUENCE OF ELECTRIC CURRENT -- 3.1 Introduction -- 3.2 The Experimental Facilities -- 3.3 The Experimental Procedure -- 3.4 Discussion on the Results -- 3.5 Conclusions -- References -- Chapter 4. THRESHOLD VOLTAGE PHENOMENON AND EFFECT OF OPERATING PARAMETERS ON THE THRESHOLD VOLTAGE IN ROLLING-ELEMENT BEARINGS -- 4.1 Bearing Threshold Voltage -- 4.2 Test Set-Up and Investigations -- 4.3 Theoretical -- 4.4 Influence of the Operating Parameters and Lubricant Characteristics on Threshold Voltages -- 4.5 Phenomenon of Bearing Impedance -- 4.6 Influence of the Operating Parameters and Minimum Film Thickness on Bearing Impedance -- 4.7 Different Types of Bearing Failure -- 4.8 Conclusions -- References -- Chapter 5. EFFECT OF ELECTRIC CURRENT ON THE TRACK SURFACES OF ROLLING-ELEMENT BEARINGS -- 5.1 A General Review -- 5.2 Process of Formation of Corrugations -- 5.3 Theoretical Determination of Pitch and Width of Corrugations on Roller Track of Races and Rollers of Roller Bearings -- 5.4 Theoretical Determination of Pitch and Width of Corrugations on Ball Track of Races and Balls of Ball Bearings -- 5.5 Experimental Investigations -- 5.6 Effect of Various factors on Corrugations and on Bearing Surfaces -- 5.7 Discussion on Various Aspects of Corrugations -- 5.8 Conclusions -- References -- Chapter 6. ELECTRICAL PARAMETERS OF ROLLING-ELEMENT BEARINGS -- 6.1 Introduction -- 6.2 Electrical Parameters of Roller Bearings -- 6.3 Electrical Parameters of Ball Bearings -- 6.4 Data Under Different Operating Parameters -- 6.5 Review of Results -- 6.6 Conclusions -- References -- Chapter 7. LIFE ESTIMATION OF ROLLING-ELEMENT BEARINGS DUE TO THE EFFECT OF CURRENT LEAKAGE -- 7.1 General -- 7.2 Theoretical Analysis of Life Estimation of Roller Bearings -- 7.3 Theoretical Analysis of Life Estimation of Ball Bearings -- 7.4 Capacitive Effect of Rolling-Element Bearings -- 7.5 Thermal Stresses Due to Thermal Transients on Rolling-Element Track Surfaces of Races -- 7.6 Determination of Number of Cycles Before the Initiation of Slip Bands and Craters Formation on Rolling-Element Tracks of Races, and Data Derived -- 7.7 Discussion of Results -- 7.8 Conclusions -- References -- Chapter 8. ANALYSIS OF CAPACITIVE EFFECT OF ROLLER BEARINGS ON REPEATED STARTS AND STOPS OF A MACHINE -- 8.1 Introduction -- 8.
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 and 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.
9780444518804 0444518800 9780080521589 (electronic bk.) 0080521584 (electronic bk.)
109296:109342 Elsevier Science & Technology http://www.sciencedirect.com
Tribology.
Electricity.
TECHNOLOGY & ENGINEERING--Tribology.
Electricity.
Tribology.
Electronic books.
TJ1061 / .P73 2006eb TJ1075 / .P73 2006eb
621.89