The Numerical Solution of the Elastohydrodynamically Lubricated Line- and Point Contact Problem, Using Multigrid Techniques
| Author | : A. A. Lubrecht |
| Publisher | : |
| Total Pages | : 236 |
| Release | : 1987 |
| Genre | : Hydroelasticity |
| ISBN | : |
The Numerical Solution Of The Elastohydrodynamically Lubricated Line And Point Contact Problem Using Multigrid Techniques
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Tribological Design of Machine Elements
| Author | : D. Berthe |
| Publisher | : Elsevier |
| Total Pages | : 535 |
| Release | : 1989-10-03 |
| Genre | : Technology & Engineering |
| ISBN | : 0080875785 |
On previous occasions each Symposium has focused attention on a current and significant research topic, usually reflecting the interests of the Leeds or Lyon research groups, however this time the main focus was on the vitally important subject of technology transfer, providing the 154 delegates from 21 countries with the rare opportunity to discuss the impact of their studies on machine design.
An efficient solution procedure for elastohydrodynamic contact problems considering structural dynamics
| Author | : Schmidt, Jan Henrik |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 164 |
| Release | : 2019-01-14 |
| Genre | : Structural dynamics |
| ISBN | : 3731508729 |
This work presents an efficient solution procedure for the elastohydrodynamic (EHD) contact problem considering structural dynamics. The contact bodies are modeled using reduced finite element models. Singly diagonal implicit Runge-Kutta (SDIRK) methods are used for adaptive time integration. The structural model is coupled with the nonlinear Reynolds Equation using a monolithic coupling approach. Finally, a reduced order model of the complete nonlinear coupled problem is constructed.
Finite Element Modeling of Elastohydrodynamic Lubrication Problems
| Author | : Wassim Habchi |
| Publisher | : John Wiley & Sons |
| Total Pages | : 464 |
| Release | : 2018-03-21 |
| Genre | : Technology & Engineering |
| ISBN | : 1119225140 |
Covers the latest developments in modeling elastohydrodynamic lubrication (EHL) problems using the finite element method (FEM) This comprehensive guide introduces readers to a powerful technology being used today in the modeling of elastohydrodynamic lubrication (EHL) problems. It provides a general framework based on the finite element method (FEM) for dealing with multi-physical problems of complex nature (such as the EHL problem) and is accompanied by a website hosting a user-friendly FEM software for the treatment of EHL problems, based on the methodology described in the book. Finite Element Modeling of Elastohydrodynamic Lubrication Problems begins with an introduction to both the EHL and FEM fields. It then covers Standard FEM modeling of EHL problems, before going over more advanced techniques that employ model order reduction to allow significant savings in computational overhead. Finally, the book looks at applications that show how the developed modeling framework could be used to accurately predict the performance of EHL contacts in terms of lubricant film thickness, pressure build-up and friction coefficients under different configurations. Finite Element Modeling of Elastohydrodynamic Lubrication Problems offers in-depth chapter coverage of Elastohydrodynamic Lubrication and its FEM Modeling, under Isothermal Newtonian and Generalized-Newtonian conditions with the inclusion of Thermal Effects; Standard FEM Modeling; Advanced FEM Modeling, including Model Order Reduction techniques; and Applications, including Pressure, Film Thickness and Friction Predictions, and Coated EHL. This book: Comprehensively covers the latest technology in modeling EHL problems Focuses on the FEM modeling of EHL problems Incorporates advanced techniques based on model order reduction Covers applications of the method to complex EHL problems Accompanied by a website hosting a user-friendly FEM-based EHL software Finite Element Modeling of Elastohydrodynamic Lubrication Problems is an ideal book for researchers and graduate students in the field of Tribology.
Elastohydrodynamic Lubrication for Line and Point Contacts
| Author | : Ilya I. Kudish |
| Publisher | : CRC Press |
| Total Pages | : 703 |
| Release | : 2013-06-17 |
| Genre | : Technology & Engineering |
| ISBN | : 1466583908 |
Elastohydrodynamic Lubrication for Line and Point Contacts: Asymptotic and Numerical Approaches describes a coherent asymptotic approach to the analysis of lubrication problems for heavily loaded line and point contacts. This approach leads to unified asymptotic equations for line and point contacts as well as stable numerical algorithms for the so
Elasto-Hydrodynamic Lubrication
| Author | : D. Dowson |
| Publisher | : Elsevier |
| Total Pages | : 254 |
| Release | : 2014-07-18 |
| Genre | : Technology & Engineering |
| ISBN | : 1483181898 |
Elasto-Hydrodynamic Lubrication deals with the mechanism of elasto-hydrodynamic lubrication, that is, the lubrication regime in operation over the small areas where machine components are in nominal point or line contact. The lubrication of rigid contacts is discussed, along with the effects of high pressure on the lubricant and bounding solids. The governing equations for the solution of elasto-hydrodynamic problems are presented. Comprised of 13 chapters, this volume begins with an overview of elasto-hydrodynamic lubrication and representation of contacts by cylinders, followed by a discussion on equations relevant to lubrication, including the Reynolds equation. The reader is then introduced to lubrication of rigid cylinders; the importance of film thickness in highly loaded rigid contacts; the elasticity of solids in contact; and the theory of elasto-hydrodynamic lubrication. Subsequent chapters focus on apparatus and measurements of film thickness and film shape; friction and viscosity; and lubrication of gears and roller bearings. This book will be of interest to tribologists.
Lubrication at the Frontier: The Role of the Interface and Surface Layers in the Thin Film and Boundary Regime
| Author | : M. Priest |
| Publisher | : Elsevier |
| Total Pages | : 911 |
| Release | : 1999-07-01 |
| Genre | : Technology & Engineering |
| ISBN | : 0080535666 |
The 25th Leeds-Lyon Symposium on Tribology was held at the Institut des Sciences Appliquées de Lyon, from 8-11th September, 1998. Its central theme was, "Lubrication at the frontier: the role of the interface and surface layers in the thin film and boundary regime". This topic was chosen because it represents an important evolution of the research field.The Symposium opened with a keynote address entitled "Role of surface-anchored polymer chains in polymer friction" which described the processes taking place at the interface between "solid" and "liquid". The keynote address was followed by two invited lectures. Firstly, "Fuel efficient engine oils, additive interactions, boundary friction and wear" presented the industrial point of view on lubricant formulation and engine testing and its evolution. The second lecture was entitled "For establishment of a new EHL theory" and stressed the need to extend the current EHL theory.Beginning in 1974, The Leeds-Lyon Symposia have now covered a wide range of topics. The essential aim each year is to select a topic of current interest to tribologists and to contribute to further the advance of knowledge in selected fields.
Proceedings of the Fourth Copper Mountain Conference on Multigrid Methods
| Author | : Jan Mandel |
| Publisher | : SIAM |
| Total Pages | : 462 |
| Release | : 1989-01-01 |
| Genre | : Mathematics |
| ISBN | : 9780898712483 |
On the Use of Model Order Reduction Techniques for the Elastohydrodynamic Contact Problem
| Author | : Maier, Daniel |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 182 |
| Release | : 2015-05-12 |
| Genre | : Technology (General) |
| ISBN | : 3731503697 |
The objective of this work is to develop a method which solves the nonlinear elastohydrodynamic contact problem in a fast and precise way using model order reduction techniques. The reduction procedure is based on a projection onto a low-dimensional subspace using different hyper-reduction procedures. The method provides fast and highly accurate reduced order models for stationary and transient, Newtonian and Non-Newtonian EHD line and point contact problems.
Lubricants and Lubrication
| Author | : G. Dalmaz |
| Publisher | : Elsevier |
| Total Pages | : 709 |
| Release | : 1995-10-05 |
| Genre | : Technology & Engineering |
| ISBN | : 0080875947 |
These proceedings review progress in the development of lubricants and in the understanding of the phenomena of lubrication.The contents include papers on the impact of automotive technology and environmental factors upon lubricant requirements, elasto-hydrodynamic lubrication, boundary lubrication, machine elements, bio-tribology, metal forming, rheology, lubricated wear and very thin film (nano metre) lubrication. Presented by leading scientists from 22 different countries, these proceedings provide an up-to-date review of developments in this field.
