Tribology Modelling: Friction and wear prediction across the scales

Name: Tribology Modelling: Friction and wear prediction across the scales
Start: 2017-09-13T08:30:00
Location: National Motorcycle Museum

National Motorcycle Museum, Birmingham

13 September 2017
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"Attending this event will provide a great opportunity to find out how other industries and universities are dealing with tribological challenges"
Dr Guillermo E. Morales-Espejel, Principal Scientist, SKF Research and Technology Development

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Overview

Tribology modelling is an increasingly important complement to experiments and it is essential for engineers to keep up-to-date on how to best take advantage of the techniques and capabilities available.

Attend this seminar to learn about state of the art modelling approaches in tribology and gain insight into the latest methods and approaches for predicting friction and wear in tribological systems. Join thought-provoking discussions with key figures from industry and academia to take away valuable lessons learned, which can be applied to your day-to-day activities and enable optimisation of resources.

Key programme highlights include:

Take into account realistic lubricant properties from lubrication models with Shell Global Solutions (UK)
Gain insights into molecular modelling of lubricants and additives from Imperial College London
SKF Research and Technology Development discuss modelling tribology of rolling bearings
Find out how MAHLE Engine Systems UK Ltd are moving from lubrication theory to practical engine applications
Understand tribofilms and their effect in boundary lubrication modelling with the University of Leeds

Confirmed seminar speakers:

Robert Ian Taylor, Technology Manager, Lubricants Innovation Team, Shell Global Solutions (UK)
James P. Ewen, PhD Researcher, Tribology Group, Imperial College London
Andreas Almqvist, Professor, Division of Machine Elements, Luleå University of Technology
Dr Guillermo E. Morales-Espejel, Principal Scientist, SKF Research and Technology Development
Dr Ali Ghanbarzadeh, Post-Doctoral Research Fellow, School of Mechanical Engineering, University of Leeds
Dr Omar Mian, Head of Numerical Simulation, MAHLE Engine Systems UK Ltd
Rob Bosman, Associate Professor Physics of Durability, University of Twente
Robbie Balcombe, Technical Director, COMSOL Ltd
Prof. Pwt Evans, Cardiff School of Engineering, Cardiff University

Day 1

08:30 - Seminar Programme

	WEDNESDAY 13^TH SEPTEMBER 2017
08:30	REGISTRATION AND REFRESHMENTS
09:00	CHAIR’S OPENING REMARKS
09:15	INCLUSION OF REALISTIC LUBRICANT PROPERTIES IN LUBRICATION MODELS Robert Ian Taylor, Technology Manager, Lubricants Innovation Team, Shell Global Solutions (UK) Lubricants are key engineering components The choice of lubricant viscosity grade and base oil type (mineral or synthetic) have a significant impact on a machine’s energy efficiency Careful measurement of how lubricant viscosity varies with temperature and shear rate can help understand the performance of different lubricants – and models which take into account such realistic lubricant viscosity variation are essential for accurate simulations
09:40	TRIBOFILMS AND THEIR EFFECT IN BOUNDARY LUBRICATION MODELLING Dr Ali Ghanbarzadeh, Post-Doctoral Research Fellow, School of Mechanical Engineering, University of Leeds The kinetics of the tribofilm growth is considered in the tribochemistry model Tribofilm formation as well as its durability has been considered The role of the tribofilm in reducing wear has been proposed, implemented and tested
10:05	MODELLING AND SIMULATION OF FRICTION AND FLOW OF THIN FILMS Andreas Almqvist, Professor, Division of Machine Elements, Luleå University of Technology Friction dynamics caused by surface texture A low degree of freedom approach for ultrafast friction prediction Leakage in thin porous media; with application to metal-to-metal seals
10:30	QUESTION AND ANSWER SESSION
10:45	NETWORKING REFRESHMENT BREAK
11:15	MODELLING TRIBOLOGY OF ROLLING BEARINGS Dr Guillermo E. Morales-Espejel, Principal Scientist, SKF Research and Technology Development Modelling of Lubrication (fast methods, micro-geometry and mixed-lubrication) Modelling of Surface failure modes (surface distress, tribolayer, mild-wear) Modelling of Bearing Life (tribological effects in bearing life)
11:40	MOLECULAR MODELLING OF LUBRICANTS AND ADDITIVES James P. Ewen, PhD Researcher, Tribology Group, Imperial College London Molecular simulation techniques yield valuable structural, flow and friction information This information can be used to explain important experimental observations and give new insights Examples from several industrially-important lubricant and additive systems are given
12:05	MODELLING THE TRIBOLOGY OF GEAR LUBRICATION Prof. Pwt Evans, Cardiff School of Engineering, Cardiff University Mixed lubrication in gear contacts Progressive micropitting as a result of fatigue Effects of plastic deformation of surface roughness asperities
12:30	QUESTION AND ANSWER SESSION
12:45	NETWORKING LUNCH
13:45	FROM LUBRICATION THEORY TO PRACTICAL ENGINE APPLICATIONS Dr Omar Mian, Head of Numerical Simulation, MAHLE Engine Systems UK Ltd From first derivation of the Reynolds equation, it took about a hundred years for a full solution via numericalcomputational methods Lubrication theory on its own is not enough for practical applications without additional considerations such as coupling to solve for elasticity, thermal, materials, mechanics and roughness The increase in computer power is now offering the possibility to solve the full Navier-Stokes equation via CFD code and link the solution beyond the clearance space of sliding bearings
14:10	A MECHANICAL APPROACH TOWARDS UNDERSTANDING WEAR Rob Bosman, Associate Professor Physics of Durability, University of Twente Mechanical Wear Modelling: how can mechanical models be implemented to predict wear during running in and steady state wear. Non-linear contact mechanics: implementing efficient Semi-Analytical-Methods to engineering issues. Boundary Lubricated wear: wear mainly takes place when solids come into contact, how to calculate this situation efficiently with the correct assumptions is discussed.
14:35	QUESTION AND ANSWER SESSION
14:45	NETWORKING REFRESHMENT BREAK
15:15	TRIBOLOGY MODELLING: COUPLING PHYSICAL PHENOMENA WITH A MULTIPHYSICS APPROACH Robbie Balcombe, Technical Director, COMSOL Ltd Tribology as a science involves the interaction between different physical phenomena: for example, fluid structure interaction in elastohydrodynamic lubrication Multiphysics modelling tools are therefore useful for developing realistic simulations of tribological systems. This talk will focus on how the commercial finite element software COMSOL Multiphysics® is being applied to tribological modelling
15:45	PANEL SESSION: THE FUTURE OF MODELLING TRIBOLOGY
16:15	CHAIR’S CLOSING REMARKS
16:25	END OF SEMINAR

Andreas Almqvist: Professor, Division of Machine Elements, Luleå University of Technology

Andreas is the scientific leader for a long-term computational tribology project financed by the Swedish Research Council. During the last 3-4 years specific attention has been devoted to modelling and simulation of leakage in seals and a fruitful collaboration between the Fluid Mechanics, Mathematics and Machine Elements divisions has been established. Andreas is Associate Editor for The Proceedings of the IMechE Part J - Journal of Engineering Tribology, one of the major journals in the field. He’s also engaged in teaching and contributes to the development of engineering education at LTU as coordinator for the M.Sc. Programme in Engineering Physics.

Dr Guillermo E. Morales-Espejel: Principal Scientist, SKF Research and Technology Development

PhD in Tribology from the University of Cambridge, U.K., holder of “Habilitation à Diriger des Recherches (INSA-Lyon)”, 10 years lecturer in university and 18 years of experience in rolling bearings. Author of more than 70 scientific papers and several book chapters. Associated Editor of Tribology Transactions and IMechE Part J.
Scientific interests are: Modelling of Bearing life, friction, lubrication and surface life.

James P. Ewen: PhD Researcher, Tribology Group, Imperial College London

James graduated from the University of Bath with a Masters in Chemistry degree (First Class Hons.) in 2014. The same year, he began a PhD in the Tribology Group at Imperial College London, under the supervision of Prof. Daniele Dini, Prof. Hugh Spikes and Dr. Neal Morgan (Shell). His PhD research involves Nonequilibrium Molecular Dynamics (NEMD) simulations of lubricants and additives. His CASE studentship is co-funded by Shell and the EPSRC, and involves close collaboration with Shell as well as several other industrial and academic partners.

Dr Omar Mian: Head of Numerical Simulation, MAHLE Engine Systems UK Ltd

After a degree in Mechanical Engineering from Imperial College in 1981 and a Masters in Tribology from Leeds University, Omar worked on solving production issues with Carpets International. A CASE award for a PhD with Vickers plc and Leeds University then followed until joining Glacier bearings in the Alperton (London) R&D centre in 1986. During the subsequent thirty year career in the automotive industry, a wide variety of roles followed including product development, test rig development, engine testing, design/deployment of production and handling equipment, training, software coding, developing the "plain bearings encyclopaedia" (internal use) and about thirty published technical papers.

Dr Robbie Balcombe: Technical Director, COMSOL Ltd

Robbie works as the technical team director at COMSOL UK. He graduated from the University of Strathclyde in 2007 with a MEng in Aero-Mechanical Engineering, and then carried out his PhD in the area of numerical modelling of rolling contact fatigue at Imperial College London.

Robert Ian Taylor: Shell Global Solutions (UK), Technology Manager, Lubricants Innovation Team

Ian is a Technology Manager in Shell’s Lubricants innovation team and focuses on Technology Scouting. He is also responsible for projects on energy efficient lubricants and lubricant sensors.
Ian is a member of the Society of Tribologists and Engineers (STLE), the Institute of Physics and the American Physical Society. Ian is an Associate Editor of the Institution of Mechanical Engineers Journal of Engineering Tribology (Part J).
He was previously Technology Manager for Shell’s Lubrication Science Team, and has been with Shell since 1991. He has a degree in Physics from Cambridge University and a PhD in Applied Physics and Electronics.

Dr Ali Ghanbarzadeh: Dr Ali Ghanbarzadeh, Post-Doctoral Research Fellow, School of Mechanical Engineering, University of Leeds

Ali has finished his undergraduate studies in Mechanical Engineering from Tehran Polytechnic. He then moved to University of Leeds to do a PhD in tribochemistry of internal combustion engines with a focus on incorporating the effect of tribofilm in the modelling of surfaces and interfaces. After obtaining his PhD, he has been working as a research fellow at the institute of Functional Surfaces. Ali is active in both experimental and analytical tribology. His focus is on developing new methodologies as well as new analytical and numerical techniques to capture the behaviour of surfaces and interfaces in tribology.

Dr Chris Warrens: Expert Technologist, Research and Technology Fuels and Lubricants, BP

Chris Warrens is an Expert Technologist in the Research and Innovation Team at BP’s Formulated Product Technology Centre, based in Pangbourne in the UK. He has a D Phil in chemistry and has worked for BP for nearly 30 years. His research interests include modelling the behaviour of lubricants at both atomistic and bulk scales and the development of current and future fuel efficient engine crankcase lubricants.

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