Tribology – A Systems Approach to the Science and Technology of Friction Lubrication And Wear

Tribology – A Systems Approach to the Science and Technology of Friction Lubrication And Wear
اسم المؤلف
Horst Czichos
التاريخ
3 نوفمبر 2017
المشاهدات
التقييم
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Tribology – A Systems Approach to the Science and Technology of Friction Lubrication And Wear
Horst Czichos
Contents
1. INTRODUCTION AND BACKGROUND 1
1.1 Dynamics of physical systems and the
occurrence of friction and wear
1.2 Historical development of tribology
1.2.1 Friction studies
1.2. 2 Wear studies
1.2. 3 Lubrication studies
1.3 The meaning of tribology
1.4 The scope of this volume
2. THE SYSTEM CONCEPT 14
2.1 Introduction 14
2.2 Description of a system
2.3 Energy balance, networks, analogies
2.4 Bond graph methods
2.5 Classification of systems
3. GENERAL THEORY OF TRIBOLOGY 24
3.1 Application of systems concepts to tribology 24
3.2 Function of tribo-mechanical systems
3.3 Structure of tribo-mechanical systems
3.4 Tribological interactions
3.4.1 Functional plane
3.4. 2 Mechanical work plane
3.4.3 Thermal plane
3.4.4 Material planes
3.5 Conclusions
4. TRIBOLOGICAL PROCESSES 45
Role of tribo-processes in mechanical systems
Contact processes
4.2.1 Contact mechanics
4.2. 2 Contact physics and chemistry
Friction processes
4.3.1 Tangential forces in contact processes
4.3. 2 Sliding friction
4.3. 3 Rolling friction
4.3. 4 Energy transmission and dissipation
Wear processes
4.4.1 General description
4.4. 2 Surface fatigue wear mechanisms
4.4. 3 Abrasive wear mechanisms
4.4. 4 Adhesive wear mechanisms
4.4. 5 Tribo-chemical wear mechanisms
4.4.6 The complexity of wear processes
Lubrication modes
4.5.1 Stribeck curve and lubrication modes
4.5.2 Hydrodynamic lubrication
4.5.3 Elastohydrodynamic lubrication
4.5. 4 Mixed lubrication
4.5. 5 Boundary lubrication
4.5. 6 The limits of lubrication
5. INFLUENCE OF
TRIBOLOGICAL PROCESSES ON THE
STRUCTURE OF MECHANICAL SYSTEMS 176
General considerations
Changes in system ‘ s elements properties
5.2.1 Surface topography changes
5.2. 2 Surface composition changes
5.2 . 3 Surface strength properties changes
Material losses
Solutions for no-wear conditions
5.4. 1 FIuid fi 1 ms
5.4. 2 Magnetic fields
5.4. 3 Interfacial elastomers
5.4. 4 Flexural means
5.4. 5 Wear resistant coatings
6. INFLUENCE OF
TRIBOLOGICAL PROCESSES ON THE
FUNCTION OF MECHANICAL SYSTEMS 211
General considerations
Transmission of motion and stick-slip effects
6.2. 1 Dynamics of tribo-mechanical systems
6.2. 2 Simulation of stick-slip behaviour
Mechanical efficiency
Functional failures
6.4.1 Causes of failure
6.4. 2 A case study; failure modes of gears
Mechanical equipment reliability
Requirements for proper functional behaviour
6.6.1 Study of alternative solutions
6.6. 2 Proper design of system structure
6.6. 3 Proper choice of operating variables
6.6. 4 Monitoring the function of the system
7. TRIBOMETRY : TEST , SIMULATION AND CONTROL METHODS 248
7.1 Introduction 248
Friction and wear test methods
7.2.1 Tribometer test system types
7.2. 2 Control of operating variables
7.2.3 Tribometric characteristics
Simulative tribo-testing
Testing of tribo-technical components
Machinery condition monitoring
Surface investigation techniques
8. PRACTICAL SYSTEMS METHODOLOGY 300
8 . 1 Introduction 300
A tribological systems data sheet
8.2.1 Technical function of the system
8.2. 2 Operating variables
8.2. 3 Structure of the system
8.2. 4 Tribological characteristics
The description of tribo-engineering systems
The presentation of friction and wear research data
Application of systems methodology to the solution of
tribological problems: some case studies
Investigation of the validity of
” Coulomb-friction ” for polymer/ steel sliding pairs
Characterization of the tribological behaviour
of wear- resistant diffusion surface coatings
Material selection for off-shore bearing application
Lubricant selection for instrument pivot bearing
Reduction of severe wear of cam-tappet design
Reduction of friction- induced noise of
wheel / rail system
Failure investigation of electrical contacts
Compilation of characteristics of metalworking
APPENDIX 350
( A ) A compilation of basic tribo-engineering systems
(B ) Elements of tribo-engineering systems
( C ) Bibliographic work : DOCUMENTATION TRIBOLOGY 356
References 360
List of symbols 382
Author index 388
Subject index 393
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