Gas Thermohydrodynamic Lubrication and Seals

Description

Gas Thermohydrodynamic Lubrication and Seals provides contemporary theory and methods for thermo-hydrodynamic lubrication analysis in the design of gas bearings and seals. The title includes information on gas state equations and gas property, derivation of gas thermohydrodynamic lubrication equations, the theory of isothermal gas lubrication, thermal gas lubrication of rigid surfaces, gas thermoelastic hydrodynamic lubrication of face seals, vapor-condensed gas lubrication of face seals, experimental methods, and the design of gas face seals. Readers will find state-of-the-art, practical knowledge based on fifty years of research and application.

Key Features Describes thermohydrodynamic lubrication analysis for the design of gas bearings and seals Considers the increased operational speed, pressure and temperature of mechanical equipment in relation to gas bearings and seals Describes multi-field coupled gas lubrication theory and analytical methods Provides a model and detailed data on the lubricating properties of typical gas bearings and seals Gives comprehensive coverage of the field based on a half-century of research and application Readership

Specialists in the design of gas bearings and seals in precision mechanical and electrical and chemical equipment; researchers and postgraduate students in mechanical engineering, tribology, lubrication engineering, chemical engineering, and related fields

Table of Contents

Chapter 1 Properties of gases
1-1 Gas State Equations
1-2 Gas viscosity
1-3 Humidity gas References

Chapter 2 Gas Lubrication Equations
2-1 Reynolds Equation
2-2 EnergyEquation
2-3 Heat Conduction Equation and Interface Equation
2-4 Numerical Method for Lubrication Analysis References

Chapter 3 Isothermal Gas Lubrication
3-1 Sliders
3-2 Journal Bearing and Radial Seal
3-3 Spiral Groove Thrust Bearing
3-4 Spiral Groove Face Seal References

Chapter 4 Thermal Gas Lubrication of Rigid Surfaces
4-1 Sliders
4-2 Journal Bearing and Radial Seal
4-3 Spiral Groove Thrust Bearing
4-4 Spiral Groove Face Seal References

Chapter 5 Gas ThermoElastic Hydrodynamic Lubrication(TEHL) of Face Seals
5-1 Fundamental Equations
5-2 Choked Fluid Effect
5-3 Characteristics of Thermoelastic Distortions of Seal Faces
5-3 Characteristics of Gas TEHL References

Chapter 6 Transient ThermoElastic Hydrodynamic Gas Lubrication of Face Seals
6-1 Fundamental Equations
6-2 Dynamic Characteristics of Isothermal Gas Lubrication
6-3 Dynamic Characteristics of Thermal Gas Lubrication of Rigid Surfaces
6-4 Dynamic Characteristics of Gas TEHL References

Chapter 7 Vapor-Condensed Gas Lubrication of Face Seals
7-1 Fundamental Equations
7-2 Characteristics of Vapor Condensation in Gas Lubrication Film
7-3 Laws of Vapor Condensation in Gas Lubrication Film
7-4 Movement of Liquid Drops on Gas Lubrication Surfaces References

Chapter 8 Surface Grooves of Gas Face Seals and Testing Technology
8-1 Surface Grooves of Gas Face Seals
8-2 Testing Technology of Gas Face Seals
8-3 Experimental Characteristics of Gas Face Seals References

Chapter 9 Design of Gas Face Seals
9-1 Force Analysis of Gas Face Seals
9-2 Geometric Parameters of Gas Face Seals
9-3 Performance Parameters of Gas Face Seals
9-4 Materials of Seal Couple
9-5 Dimension Design of Seal Rings
9-6 Design of Secondary Seals
9-7Process of Seal Design and Illustration References

1. Properties of gases 2. Gas lubrication equations 3. Isothermal gas lubrication 4. Gas thermohydrodynamic lubrication of rigid surfaces 5. Gas thermoelastohydrodynamic lubrication of face seals. 6. Transient thermoelastohydrodynamic gas lubrication of face seals 7. Vapor-condensed gas lubrication of face seals 8. Cryogenic gas lubrication of face seals 9. Surface grooves of gas face seals and testing technology 10. Design of gas face seals