本书全面系统的阐述了气体润滑与密封的理论和设计分析方法。内容包括：气体状态方程与基本性质、气体润滑方程、等温气体润滑理论、刚性表面气体热润滑理论、气体密封热弹流润滑理论、端面密封气体热弹流动态特性、高压气体冷凝析水润滑、密封实验与设计方法。

Contents
CHAPTER 1 Properties of gases
1.1 Gas equations
1.1.1 Ideal gas equations
1.1.2 Gas index equation
1.1.3 Actual gas equation
1.1.4 Degree of gas molecular freedom
1.1.5 Specific heat capacity
1.2 Viscosity
1.3 Property of wet gas
1.3.1 Pressure
1.3.2 Humidity
1.3.3 Dew point temperature
References
CHAPTER 2 Gas lubrication equations
2.1 Reynolds equation
2.1.1 Derivation of Reynolds equation
2.1.2 Reynolds equation in the polar coordinate system
2.1.3 Reynolds equation in the cylindrical coordinate system
2.1.4 Lubrication parameters
2.2 Energy equation
2.2.1 Chang of gas inner energy
2.2.2 External work on gas and energy loss
2.3 Solid heat conduction equation and the interface equation
2.4 Numerical analysis method
2.4.1 Finite difference method
2.4.2 Flow conservation
2.4.3 Friction force balance
References
CHAPTER 3 Isothermal gas lubrication
3.1 Sliders
3.1.1 Lubrication equation
3.1.2 Pressure boundary condition
3.1.3 Lubrication performance parameters
3.1.4 Hydrodynamic lubrication characteristics of sliders
3.1.5 Hydrodynamic lubrication characteristics of divergent sliders
3.1.6 Lubrication characteristics of the magnetic head slider
Journal bearing and radial seal
3.2.1 Lubrication equations
3.2.2 Boundary conditions
3.2.3 Lubrication parameters
3.2.4 Lubrication characteristics
Spiral groove thrust bearing
3.3.1 Gas lubrication equations
3.3.2 Pressure boundary conditions
3.3.3 Lubrication parameters
3.3.4 Lubrication characteristics
3.3.5 Spiral groove face seal
3.3.6 Lubrication equations
3.3.7 Pressure boundary conditions
3.3.8 Seal performance parameters
3.3.9 Lubrication regularity
References
Gas thermohydrodynamic lubrication of rigid surfaces Sliders
4.1.1 Gas lubrication equations
4.1.2 Boundary conditions
4.1.3 Thermal lubrication characteristics
Journal bearing and radial seal
4.2.1 Lubrication equations
4.2.2 Thermal boundary condition
4.2.3 Lubrication property
Spiral groove thrust bearing
4.3.1 Lubrication equations
4.3.2 Boundary conditions
4.3.3 Lubrication property
Spiral groove face seal
4.4.1 Temperature characteristics of gas film
4.4.2 Lubrication property
References
Contents VII
CHAPTER 5 Gas thermoelastohydrodynamic lubrication of face seals
5.1 Fundamental equations
5.1.1 Lubrication equations
5.1.2 Boundary conditions
5.2 Choked fluid effect
5.2.1 Model validation
5.2.2 Pressure distribution characteristics
5.3 Characteristics of thermoelastic distortions of seal faces
5.4 Characteristics of gas thermoelastohydrodynamic lubrication
5.4.1 Mechanical distortions
5.4.2 Thermal distortions
5.4.3 Thermoelastic distortions
References
CHAPTER 6 Transient thermoelastohydrodynamic gas lubrication of face seals
6.1 Fundamental equations
6.1.1 Dynamic equations
6.1.2 Lubrication equations
6.1.3 Boundary conditions
6.1.4 Dynamic characteristic parameter
6.2 Dynamic characteristics of isothermal gas lubrication
6.2.1 Axial stiffness and damping
6.2.2 Angular stiffness and damping
6.2.3 Amplitude-frequency characteristics of gas film
6.3 Dynamic characteristics of thermal gas lubrication of rigid surfaces
6.3.1 Axial stiffness and damping
6.3.2 Angular stiffness and damping
6.3.3 Amplitude-frequency characteristics of gas film
6.4 Dynamic characteristics of gas thermoelastohydrodynamic
lubrication
6.4.1 Axial stiffness and damping
6.4.2 Angular stiffness and damping of gas film
6.4.3 Amplitude-frequency characteristics of gas film
References
VIII Contents
CHAPTER 7 Vapor-condensed gas lubrication of face seals
7.

随着现代机械装备不断向高压、高速和高（低）温现等高参数化发展，高速气体轴承和高压气体密封设计中所面临的流固热等多场耦合、介质相变、高速流效应等气体润滑理论和设计方法问题日益突出。本书针对精密机电装备、石油、化工流程工业装备以及航空装备中典型气体轴承和密封结构形式，系统的阐述了气体润滑理论和分析方法，可作为高校机械工程等相关专业研究生教材，也可为相关领域的气体轴承和密封设计提供参考。