Mixed lubrication in hydrodynamic bearings
This Series provides the necessary elements to the development and validation of numerical prediction models for hydrodynamic bearings. This book is dedicated to the mixed lubrication.
| Otros Autores: | , , |
|---|---|
| Formato: | Libro electrónico |
| Idioma: | Inglés |
| Publicado: |
London : Hoboken, NJ :
ISTE
2014.
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| Colección: | Wiley ebooks.
Numerical methods in engineering series. |
| Acceso en línea: | Conectar con la versión electrónica |
| Ver en Universidad de Navarra: | https://innopac.unav.es/record=b46130263*spi |
Tabla de Contenidos:
- Cover; Title Page; Copyright; Contents; Preface; Nomenclature; Chapter 1: Introduction; 1.1. Lubrication regimes
- Stribeck curve; 1.2. Topography of rough surfaces; 1.2.1. 2D profile parameters; 1.2.1.1. Definition of the reference height; 1.2.1.2. Statistical treatment of the ordinate; 1.2.1.3. Statistical treatment of the ordinate respective to the abscissa; 1.2.1.4. Fractal analysis; 1.2.2. Common standard profile parameters; 1.2.2.1. EN ISO 4287, 4288 Standard: "Mean line"; 1.2.2.2. NF EN ISO 12085 Standard "motifs and envelope line"; 1.2.2.3. EN ISO 13565 standard: Abbott curve.
- 1.3. BibliographyChapter 2: Computing the Hydrodynamic Pressure; 2.1. Patir and Cheng stochastic model; 2.1.1. Model description; 2.1.2. Computation of the flow factors; 2.1.3. Computation of the friction torque for a journal bearing; 2.1.4. Application limits for the Patir and Cheng model; 2.2. Model based on a direct computation of the flow factors; 2.2.1. Model description; 2.2.2. Introduction of the cross-factors: new expression of the Reynolds equation.; 2.2.3. Flow factors calculation methods.
- 2.2.4. Calculation of the hydrodynamic load capacity and friction force in the presence of the contact zones2.2.5. Recommendations for the calculation of flow and shear factors; 2.2.6. Calculation of the principal direction; 2.2.7. Analysis of the combination of two combined rough surfaces; 2.2.8. Examples relating to real rough surfaces; 2.3. Homogenization method; 2.3.1. Incompressible and isoviscous steady-state case; 2.3.2. Incompressible and isoviscous unsteady case; 2.3.3. Taking into account the cavitation; 2.3.4. Non-Newtonian or thermoviscous fluid.
- 2.3.5. Implementation for internal combustion engine bearing computation2.4. Comparison between the flow factors obtained with Patir and Cheng, direct computation and homogenization models; 2.5. Example of pressure profiles obtained from flow factors calculated with Patir and Cheng, direct computation and homogenization models; 2.6. Comparison with deterministic computations; 2.7. Bibliography; Chapter 3: Computing the Contact Pressure; 3.1. Concept of sum surface; 3.1.1. The microgeometric properties of the sum surface; 3.1.2. Elastic and plastic properties of the sum surface.
- 3.2. Elastic contact model proposed by Greenwood and Williamson3.3. Elasto-plastic contact model proposed by Robbe-Valloire et al.; 3.3.1. Elasto-plastic constitutive law; 3.3.2. Description of microgeometric properties of rough surfaces; 3.3.2.1. Asperities' radius; 3.3.2.2. Distribution of asperities' heights; 3.3.3. Asperity deformation; 3.3.3.1. Elastic deformation; 3.3.3.2. Elasto-plastic deformation; 3.3.3.3. Plastic deformation; 3.3.4. Contact between two rough surfaces; 3.4. Elasto-plastic double-layer contact model proposed by Progri et al.; 3.4.1. Elastic regime.
