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1. |
Record Nr. |
UNINA9910132157803321 |
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Autore |
Bonneau D (Dominique) |
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Titolo |
Hydrodynamic bearings / / Dominique Bonneau, Aurelian Fatu, Dominique Souchet |
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Pubbl/distr/stampa |
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London, [England] ; ; Hoboken, New Jersey : , : ISTE : , : Wiley, , 2014 |
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©2014 |
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ISBN |
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1-119-00807-7 |
1-119-00476-4 |
1-119-00806-9 |
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Descrizione fisica |
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1 online resource (221 p.) |
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Collana |
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Numerical Methods in Engineering Series |
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Disciplina |
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Soggetti |
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Bearings (Machinery) |
Fluid-film bearings - Mathematical models |
Lubrication and lubricants |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references at the end of each chapters and index. |
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Nota di contenuto |
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Cover; Title Page; Copyright; Contents; Foreword by J.F. Booker; Foreword by Jean Frêne; Preface; Nomenclature; Chapter 1: The Lubricant; 1.1. Description of lubricants; 1.2. The viscosity; 1.2.1. Viscosity - temperature relationship; 1.2.2. Viscosity - pressure relationship; 1.2.3. Viscosity - pressure - temperature relationship; 1.2.4. Non-Newtonian behavior; 1.3. Other lubricant properties; 1.4. Lubricant classification and notation; 1.5. Bibliography; Chapter 2: Equations of Hydrodynamic Lubrication; 2.1. Hypothesis; 2.2. Equation of generalized viscous thin films |
2.3. Equations of hydrodynamic for journal and thrust bearings2.3.1. Specific case of an uncompressible fluid; 2.3.2. Standard Reynolds equation for a journal bearing: general case; 2.3.3. Reynolds equation for a thrust bearing: general case; 2.3.4. Equation of volume flow rate; 2.3.5. Equations of hydrodynamic for journal and thrust bearings lubricated withan isoviscous uncompressible fluid; 2.4. Film rupture; second form of Reynolds equation; 2.5. Particular form of the viscous thin film equation in the case of wall slipping; 2.6. Boundary |
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conditions; lubricant supply |
2.6.1. Conditions on bearing edges2.6.2. Conditions for circular continuity; 2.6.3. Conditions on non-active zone boundaries; 2.6.4. Boundary conditions for supply orifices; 2.7. Flow rate computation; 2.7.1. First assumptions; 2.7.2. Model and additional assumptions; 2.7.3. Pressure expression for the full film fringes on the bearing edges; 2.7.4. Evolution of the width of the full film fringes on the bearing edges; 2.7.4.1. The pressure in the full film fringe remains greater than the cavitationpressure |
2.7.4.2. The pressure in the full film fringe becomes lower than the cavitation pressure2.7.5. Computation of the flow rate for lubricant entering by the bearing sides; 2.8. Computation of efforts exerted by the pressure field and the shear stress field: journal bearing case; 2.9. Computation of efforts exerted by the pressure field and the shear stress field: thrust bearing case; 2.10. Computation of viscous dissipation energy: journal bearing case; 2.11. Computation of viscous dissipation energy: thrust bearing case; 2.12. Different flow regimes; 2.13. Bibliography |
Chapter 3: Numerical Resolution of the Reynolds Equation3.1. Definition of the problems to be solved; 3.1.1. Definition of the problems to be solved; 3.1.2. Problem 2: determining of the pressure and the lubricant filling; 3.1.3. Other problems; 3.2. The finite difference method; 3.2.1. Computation grid; 3.2.2. Discretization of standard Reynolds equation (problem 1); 3.2.3. Discretization of modified Reynolds equation (problem 2); 3.3. The finite volume method3; 3.3.1. Mesh of the film domain; 3.3.2. Discretization of the standard Reynolds equation (problem 1) |
3.3.3. Discretization of modified Reynolds equation (problem 2) |
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Sommario/riassunto |
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This Series provides the necessary elements to the development and validation of numerical prediction models for hydrodynamic bearings. This book describes the rheological models and the equations of lubrication. It also presents the numerical approaches used to solve the above equations by finite differences, finite volumes and finite elements methods. |
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2. |
Record Nr. |
UNINA9910299589003321 |
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Autore |
Al-Mahaidi Riadh |
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Titolo |
Multi-axis Substructure Testing System for Hybrid Simulation / / by Riadh Al-Mahaidi, M. Javad Hashemi, Robin Kalfat, Graeme Burnett, John Wilson |
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Pubbl/distr/stampa |
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Singapore : , : Springer Singapore : , : Imprint : Springer, , 2018 |
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ISBN |
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Edizione |
[1st ed. 2018.] |
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Descrizione fisica |
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1 online resource (XVII, 81 p. 57 illus., 45 illus. in color.) |
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Collana |
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SpringerBriefs in Structural Mechanics , , 2520-8020 |
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Disciplina |
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Soggetti |
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Engineering geology |
Engineering—Geology |
Foundations |
Hydraulics |
Geotechnical engineering |
Mechanics |
Mechanics, Applied |
Geoengineering, Foundations, Hydraulics |
Geotechnical Engineering & Applied Earth Sciences |
Solid Mechanics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references at the end of each chapters. |
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Nota di contenuto |
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Introduction -- Background -- State-of-the-Art System for Hybrid Simulation -- Application of the MAST System for Collapse Experiments -- Closure. |
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Sommario/riassunto |
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This book describes the multi-axis substructure testing (MAST) system, a simulator developed at Swinburne University of Technology, Australia, which provides state-of-the-art technology for large-scale hybrid testing of structures under realistic scenarios depicting extreme events. The book also demonstrates the responses of physical specimens while they serve as part of the virtual computer model of the full structure subjected to extreme dynamic forces. Experimental studies using the MAST system are expected to enhance design and construction methods and significantly improve the repair and retrofitting of |
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structures endangered by natural disasters and man-made hazards, providing a direct benefit to society by improving public safety and the re silience of the built environment. An additional benefit is increased sustainability in the form of reduced direct and indirect economic losses and social and environmental impacts in the face of extreme events. This book will be of interest to researchers and advanced practitioners in the fields of structural earthquake engineering, geotechnical earthquake engineering, engineering seismology, and experimental dynamics, including seismic qualification. . |
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