Professor Rob Dwyer-Joyce

BSc PhD CEng FIMechE

Prof Dwyer-Joyce

Professor of Lubrication Engineering

Head of Department

Department of Mechanical Engineering
Sir Frederick Mappin Building
Mappin Street
Sheffield
S1 3JD
UK

Telephone: +44(0)114 2227736
Fax: +44(0)114 2227840

email : r.dwyer-joyce@sheffield.ac.uk

Profile

Rob Dwyer-Joyce is Professor of Lubrication Engineering in the Department of Mechanical Engineering. He has a first degree in Mechanical Engineering from Imperial College and a PhD in Tribology. After graduating he worked for British Gas in the Petroleum Production Division and offshore on the Rough gas field. Rob joined the Department in 1994; he manages the Leonardo Centre for Tribology that specialises in industrial wear and lubrication problems, and the development of metrology tools for tribology. Rob teaches fluid mechanics and tribology of machine elements to undergraduate and postgraduate students.

Other professional activities and achievements:

Editor in Chief of IMechE Proceedings part J
Director of Leonardo Centre for Tribology & Surface Engineering
Fellow of the Institution of Mechanical Engineers
Associate Editor of ASME Journal of Tribology
Board member of Journal of Lubrication Science, Wiley
STLE Frank P Bussick Award for best paper 2008
STLE Edmund Bisson Award for best paper 2005
KL Johnson best paper on Contact Mechanics, ASME Journal of Tribology 2006
Fylde Electronic Laboratories Prize for best paper in Strain 2008
EPSRC college member

Areas of Research

Professor Dwyer-Joyce's research covers a range of industrial wear and lubrication problems. The work involves the development of metrology tools, experimental techniques (wear, friction, bearings and lubrication rigs), and advanced analytical models. The projects are funded by a combination of EPSRC, EU and industry.

One research theme is the wear of engineering components. This involves testing on specimens and real components, as well as modelling and development of wear resistant systems. Projects have included wear of railway wheels, recession of engine valves, wear of rolling bearings, polymer bearing and gears, aircraft landing gear pins, and wear in automotive chain drives. Recently this work has been extended into aspects of bio-tribology, including design of a mandibular joint replacement, and human tooth wear.

Another activity is the development of sensors for studying interfaces in machine components. Instruments have been developed to determine the contact area and pressure distribution. This has been used to study contacts in CV joints, graphite nuclear reactor bricks, and seals. Some unique work has been performed to measure the contact stress in shrink fitted components like railway wheel axles.

Professor Dwyer-Joyce's research group has developed and patented a device for the ultrasonic measurement of lubricant film thickness. The instrument allows the on-line measurement of oil film thickness (down to nanometer thick films) in components. This has been used to measure films in rolling bearings, prosthetic hip joints, motorsport pistons, seals, and the thrust pads for the Dinorwig power station. This work is currently being commercialised by Tribosonics Ltd. a University spinout company.

Research Projects

The measurement of lubricant films in machine elements using ultrasound
Design and development of low maintenance articulating pin joints
Non-destructive determination of contact stress in components
Railway wheel and rail wear modelling and experiments
Oil film measuring in piston rings, prosthetic hip joints, mechanical seals, and rolling bearings
Effectiveness of teeth cleaning and oral hygiene
Abrasive wear in the rice processing industry
Low friction materials for bridge bearings

Teaching

Prof. Dwyer-Joyce teaches Fluids Engineering (MEC208) to Mechanical, Aerospace and Biomechanical Engineering students. This second year course is all about the interaction between fluids and engineering machines and structures. It gives students the tools to determine how the properties of liquids and gases are changed when they interact with components like pipelines, pumps, aerofoils or turbine blades, and how this results in transfer of force, torque, momentum and energy.

Current Research Grants

Northern Wind Innovation Programme with Ricardo (Jan 2010), 'Superlife Bearing' for offshore wind turbine applications. £70,000
EU RCFS grant (Dec 2009), 'Roll gap Sensors'. Four year project to design and build sensors for metal rolling. £114,860
Unilever Research Ltd. (2010), PhD studentship to study abrasion in oral hygiene. £96,000
EPSRC grant `Encyclopaedic´ (Oct 2008), Four year project, Measurement of oil films for automotive piston rings. £472,424
EPSRC iCASE Studentship (2008), Abrasion or machine elements by rice particles. £63,789
Buhler Sortex Ltd EPSRC iCASE Studentship (2008), Abrasion or machine elements by rice particles. £21,263
Jacob Wallenberg Research Grant, (2008), SEK100,000. Bearing related research. £8,650
Messier-Dowty (Sep 2008). Three year PhD project to develop analysis tools for landing gear pin joint tribology. £85,000.
Ekspan Ltd. Knowledge Transfer Partnership (Jan 2008). Two year project to study `Bridge bearing design and performance´. £99,044
Marie Curie Transfer of Knowledge Project (ToK), (July 2006). Two year project to implement railway wheel design tools into an industrial environment. Joint with Alstom Ferroviaria and University of Zilina, Slovakia. £168,535

Journal articles

Dwyer-Joyce RS, Yao C, Lewis R & Brunskill H (2013) An ultrasonic sensor for monitoring wheel flange/rail gauge corner contact. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT, 227(F2), 188-195.
Ahmad MA, Kasolang S, Abdullah NR & Dwyer-Joyce R (2013) The effect of oil supply pressure on the circumferential pressure profile in hydrodynamic journal bearing. Applied Mechanics and Materials, 315, 809-814.
Ahmad MA, Kasolang S & Dwyer-Joyce R (2013) Experimental study of oil supply pressure effects on bearing friction in hydrodynamic lubrication. Applied Mechanics and Materials, 315, 977-981.
Dwyer-Joyce R & Rahnejat H (2013) Special Issue on Automotive Piston-Cylinder Tribology. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY, 227(J2), 99-99.
Avan EY, Spencer A, Dwyer-Joyce RS, Almqvist A & Larsson R (2013) Experimental and numerical investigations of oil film formation and friction in a piston ring-liner contact. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY, 227(J2), 126-140.
Mills RS, Avan EY & Dwyer-Joyce RS (2013) Piezoelectric sensors to monitor lubricant film thickness at piston-cylinder contacts in a fired engine. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY, 227(J2), 100-111.
Kasolang S, Ahmed DI, Dwyer-Joyce RS & Yousif BF (2013) Performance analysis of journal bearings using ultrasonic reflection. Tribology International, 64, 78-84.
Mulvihill DM, Kartal ME, Nowell D, Brunskill H & Dwyer-Joyce RS (2013) A Comparison of Contact Stiffness Measurements Obtained by the Digital Image Correlation and Ultrasound Techniques. Experimental Mechanics, 1-19.
Mills R, Avan EY & Dwyer-Joyce R (2013) Measuring lubricant films at the piston-cylinder contact: An overview of current technologies with focus on ultrasound. SAE Technical Papers, 2.
Vail JR, Mills RS, Stephen JT, Marshall MB & Dwyer-Joyce RS (2013) An ultrasonic method for measuring fluid penetration rate into threaded contacts. Tribology International, 67, 21-26.
Mills R, Avan EY & Dwyer-Joyce R (2013) Measuring lubricant films at the piston-cylinder contact: An overview of current technologies with focus on ultrasound. SAE Technical Papers, 2.
Mulvihill DM, Kartal ME, Nowell D, Brunskill H & Dwyer-Joyce RS (2013) A Comparison of Contact Stiffness Measurements Obtained by the Digital Image Correlation and Ultrasound Techniques. Experimental Mechanics, 53(7), 1245-1263.
Hunter A, Dwyer-Joyce R & Harper P (2012) Calibration and validation of ultrasonic reflection methods for thin-film measurement in tribology. Measurement Science and Technology, 23(10).
Wan Ibrahim MK, Gasni D & Dwyer-Joyce RS (2012) Profiling a Ball Bearing Oil Film with Ultrasonic Reflection. Tribology Transactions, 55(4), 409-421.
Baker A, Dwyer-Joyce RS, Briggs C & Brockfeld M (2012) Effect of different rubber materials on husking dynamics of paddy rice. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY, 226(J6), 516-528.
Zhu J, Pugh S & Dwyer-Joyce RS (2012) Model and experiments to determine lubricant film formation and frictional torque in aircraft landing gear pin joints. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 226(4), 315-327.
Avan EY, Mills R & Dwyer-Joyce R (2011) Frictional characteristics of ultrasonically measured lubricant films in a simulated piston ring liner contact. SAE Technical Papers.
Dwyer-Joyce RS, Reddyhoff T & Zhu J (2011) Ultrasonic Measurement for Film Thickness and Solid Contact in Elastohydrodynamic Lubrication. JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 133(3).
Gasni D, Wan Ibrahim MK & Dwyer-Joyce RS (2011) Ultrasonic reflection technique for measuring film thickness in the I-EHL regime. Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2011, 163-165.
Wan Ibrahim MK, Gasni D & Dwyer-Joyce RS (2011) Profiling the oil film of a ball bearing with ultrasonic reflection. Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2011, 125-128.
Kasolang S, Ahmad MA & Dwyer Joyce RS (2011) Measurement of circumferential viscosity profile in stationary journal bearing by shear ultrasonic reflection. Tribology International, 44(11), 1264-1270.
Dwyer-Joyce RS, Zhu J & Reddyhoff T (2011) Ultrasonic measurement for film thickness and solid contact in elastohydrodynamic lubrication. Journal of Tribology, 133(3).
Zorcolo A, Lewis R & Dwyer-Joyce RS (2011) Particle/applicator interactions in household surface cleaning. Wear, 271(9-10), 2579-2587.
Hugo A-M, Scelsi L, Hodzic A, Dwyer-Joyce R & Jones FR (2011) Development of recycled polymer composites for structural applications. Plastics, Rubber and Composites, 40(6-7), 317-323.
Avan EY, Mills R & Dwyer-Joyce R (2011) Frictional characteristics of ultrasonically measured lubricant films in a simulated piston ring liner contact. SAE 2011 World Congress and Exhibition.
Pombo J, Ambrósio J, Pereira M, Lewis R, Dwyer-Joyce R, Ariaudo C & Kuka N (2011) Development of a wear prediction tool for steel railway wheels using three alternative wear functions. Wear, 271(1-2), 238-245.
Gasni D, Wan Ibrahim MK & Dwyer-Joyce RS (2011) Measurements of lubricant film thickness in the iso-viscous elastohydrodynamic regime. Tribology International, 44(7-8), 933-944.
Avan EY, Mills R & Dwyer-Joyce R (2010) Ultrasonic imaging of the piston ring oil film during operation in a motored engine - Towards oil film thickness measurement. SAE Technical Papers, 786-793.
Pombo J, Ambrosio J, Pereira M, Lewis R, Dwyer-Joyce R, Ariaudo C & Kuka N (2010) A study on wear evaluation of railway wheels based on multibody dynamics and wear computation. MULTIBODY SYST DYN, 24(3), 347-366.
Kirk KJ, Elgoyhen J, Hood JP, Hutson D, Dwyer-Joyce RS, Zhang J & Drinkwater BW (2010) Ultrasonic condition monitoring using thin-film piezoelectric sensors. INSIGHT, 52(4), 184-+.
Tassini N, Quost X, Lewis R, Dwyer-Joyce R, Ariaudo C & Kuka N (2010) A numerical model of twin disc test arrangement for the evaluation of railway wheel wear prediction methods. WEAR, 268(5-6), 660-667.
Gonzalez-Valadez M, Baltazar A & Dwyer-Joyce RS (2010) Study of interfacial stiffness ratio of a rough surface in contact using a spring model. WEAR, 268(3-4), 373-379.
Pang XP, Qin N, Dwyer-Joyce RS, Chen J & Wang JX (2010) A General Profile Parameterization of Hydrodynamic Journal Bearings for Efficient Shape Optimization. TRIBOL T, 53(1), 117-126.
Lewis R, Dwyer-Joyce RS, Olofsson U, Pombo J, Ambrosio J, Pereira M, Ariaudo C & Kuka N (2010) Mapping railway wheel material wear mechanisms and transitions. P I MECH ENG F-J RAI, 224(F3), 125-137.
Dwyer-Joyce RS, Goodman MA & Lewis R (2010) A comparative study of ultrasonic direct contact, immersion, and layer resonance methods for assessment of enamel thickness in teeth. P I MECH ENG J-J ENG, 224(J6), 519-528.
Pombo J, Ambrosio J, Pereira M, Lewis R, Dwyer-Joyce R, Ariaudo C & Kuka N (2010) A RAILWAY WHEEL WEAR PREDICTION TOOL BASED ON A MULTIBODY SOFTWARE. JOURNAL OF THEORETICAL AND APPLIED MECHANICS, 48(3), 751-770.
Pombo J, Ambrósio J, Pereira M, Lewis R, Dwyer-Joyce R, Ariaudo C & Kuka N (2010) A study on wear evaluation of railway wheels based on multibody dynamics and wear computation. Multibody System Dynamics, 1-20.
Zhu J, Pugh S, Dwyer-Joyce RS, Beke A, Cumner G & Ellaway T (2010) Experiments on the pressure distribution and frictional torque in articulating pin joints. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 224(10), 1153-1162.
Dwyer-Joyce RS, Yao C, Zhang J, Lewis R & Drinkwater BW (2009) Feasibility Study for Real Time Measurement of Wheel-Rail Contact Using an Ultrasonic Array. J TRIBOL-T ASME, 131(4).
Camacho J, Lewis R & Dwyer-Joyce RS (2009) Solid particle erosion caused by rice grains. WEAR, 267(1-4), 223-232.
Gonzalez-Valadez M & Dwyer-Joyce RS (2009) Asperity Creep Measured by the Reflection of Ultrasound at Rough Surface Contact. J TRIBOL-T ASME, 131(2).
Mills R, Dwyer-Joyce RS & Loo-Morrey M (2009) The mechanisms of pedestrian slip on flooring contaminated with solid particles. TRIBOL INT, 42(3), 403-412.
Drinkwater BW, Zhang J, Kirk KJ, Elgoyhen J & Dwyer-Joyce RS (2009) Ultrasonic Measurement of Rolling Bearing Lubrication Using Piezoelectric Thin Films. J TRIBOL-T ASME, 131(1).
Avan EY, Mills RS, Dwyer-Joyce RS & Akturk N (2009) Oil film thickness measurement between an automotive piston ring and cylinder using an ultrasonic technique. World Tribology Congress 2009 - Proceedings, 718-718.
Pombo J, Ambrósio J, Pereira M, Quost X, Tassini N, Lewis R, Dwyer-Joyce R, Ariaudo C & Kuka N (2008) A railway wheel wear prediction tool based on multibody software. Proceedings of the Mini Conference on Vehicle System Dynamics, Identification and Anomalies, 159-168.
Brockett CL, Harper P, Williams S, Isaac GH, Dwyer-Joyce RS, Jin Z & Fisher J (2008) The influence of clearance on friction, lubrication and squeaking in large diameter metal-on-metal hip replacements.. J Mater Sci Mater Med, 19(4), 1575-1579.
Reddyhoff T, Dwyer-Joyce RS, Zhang J & Drinkwater BW (2008) Auto-calibration of ultrasonic lubricant-film thickness measurements. MEAS SCI TECHNOL, 19(4).
Reddyhoff T, Dwyer-Joyce RS & Harper P (2008) A new approach for the measurement of film thickness in liquid face seals. TRIBOL T, 51(2), 140-149.
Kasolang S & Dwyer-Joyce RS (2008) Observations of Film Thickness Profile and Cavitation Around a Journal Bearing Circumference. TRIBOLOGY TRANSACTIONS, 51(2), 231-242.
Camacho J, Lewis R & Dwyer-Joyce RS (2007) Wear of a chute in a rice sorting machine. WEAR, 263, 65-73.
Lewis R, Barber SC & Dwyer-Joyce RS (2007) Particle motion and stain removal during simulated abrasive tooth cleaning. WEAR, 263, 188-197.
Zhang J, Drinkwater BW & Dwyer-Joyce RS (2007) Ultrasonic oil-film thickness measurement: an angular spectrum approach to assess performance limits.. J Acoust Soc Am, 121(5 Pt1), 2612-2620.
Dwyer-Joyce RS, Lewis R, Ward A & Patterson EA (2006) Determination of impact stresses in an automotive chain drive component. SAE Technical Papers.
Green DA, Lewis R & Dwyer-Joyce RS (2006) Wear of valve train components due to soot contaminated lubricant. SAE Technical Papers.
Dwyer-Joyce RS, Green DA, Harper P, Lewis R, Balakrishnan S, King PD, Rahnejat H & Howell-Smith S (2006) The measurement of liner - Piston skirt oil film thickness by an ultrasonic means. SAE Technical Papers.
Slatter T, Lewis R & Dwyer-Joyce RS (2006) Valve recession modelling. SAE Technical Papers.
Green DA, Lewis R, Marshall MB & Dwyer-Joyce RS (2006) Ultrasonic Measurement of Contact Pressures in Automotive Component Contacts. Transactions of the SAE, Journal of Materials and Manufacturing, 991-999.
Braghin F, Lewis R, Dwyer-Joyce RS & Bruni S (2006) A mathematical model to predict railway wheel profile evolution due to wear. WEAR, 261(11-12), 1253-1264.
Gallardo-Hernandez EA, Lewis R & Dwyer-Joyce RS (2006) Temperature in a twin-disc wheel/rail contact simulation. TRIBOLOGY INTERNATIONAL, 39(12), 1653-1663.
Korach C, Stempfle P, Mischler S, Yan Y, Neville A, Najjar D, Torrance AA, Bigerelle M, Migaud H, Iost A, Wang L, Ito K, Martin JM, Minfray C, Kato K, Roper GW, Morina A, Green JH, Priest M, Coy R, Booth JE, Nelson K, Harvey TJ, Wood RJK, Yamaguchi ES, Harrison JJ, Powrie HEG, Maillat M, Liu Y, Gubisch M, Haensel T, Scherge M, Spiess L, Schaefer JA, Fontaine J, Erdemir A, Haque T, Yamamoto K, Matsukato K, Higgs F, Stachowiak GW, Podsiadlo P, Soom A, Fox M, Tamminen J, Sandstrom CE, Andersson P, Herbst H, Coy RC, Gallardo-Hernandez AE, Lewis R, Dwyer-Joyce RS, Poll G, Evans HP, Liu S, Hild W, Luo J, Kano M, Yasuda Y, Martins RC, Amaro RI, Seabra JO, Ciulli E, Lubrecht T, Hohn BR, Michaelis K, Kreil O, Vergne P, Krupka I, Hard M, Liska M, Campos A, Sottomayor A, Mourier L, Mazuyer D, Lubrecht AA & Donnet C (2006) Special issue: Interactions of Tribology and the Operating Environment: Proceedings of the 32nd Leeds-Lyon Symposium on Tribology (Lyon, 2005) - Discussion. TRIBOL INT, 39(12), I-VII.
Lewis R & Dwyer-Joyce RS (2006) Interactions between toothbrush and toothpaste particles during simulated abrasive cleaning. P I MECH ENG J-J ENG, 220(J8), 755-765.
Dwyer-Joyce RS, Harper P, Pritchard J & Drinkwater BW (2006) Oil film measurement in polytetrafluoroethylene-faced thrust pad bearings for hydrogenerator applications. P I MECH ENG A-J POW, 220(A6), 619-628.
Nilsson R, Dwyer-Joyce RS & Olofsson U (2006) Abrasive wear of rolling bearings by lubricant borne particles. P I MECH ENG J-J ENG, 220(J5), 429-439.
Marshall MB, Lewis R, Dwyer-Joyce RS, Olofsson U & Bjorklund S (2006) Experimental characterization of wheel-rail contact patch evolution. J TRIBOL-T ASME, 128(3), 493-504.
Zhang J, Drinkwater BW & Dwyer-Joyce RS (2006) Monitoring of lubricant film failure in a ball bearing using ultrasound. J TRIBOL-T ASME, 128(3), 612-618.
Green DA, Lewis R & Dwyer-Joyce RS (2006) Wear effects and mechanisms of soot-contaminated automotive lubricants. P I MECH ENG J-J ENG, 220(J3), 159-169.
Green D, Lewis R & Dwyer-Joyce RS (2006) The wear effects and mechanisms of soot contaminated automotive lubricants. P I MECH ENG J-J ENG, 220(J3), 335-335.
Dwyer-Joyce RS & Hankinson N (2006) An ultrasonic technique for the measurement of elastic properties of soft surface coatings. TRIBOL INT, 39(4), 326-331.
Lewis R & Dwyer-Joyce RS (2006) Wear at the wheel/rail interface when sanding is used to increase adhesion. P I MECH ENG F-J RAI, 220(1), 29-41.
Marshall MB, Lewis R & Dwyer-Joyce RS (2006) Characterisation of contact pressure distribution in bolted joints. STRAIN, 42(1), 31-43.
Zhang J, Drinkwater BW & Dwyer-Joyce RS (2006) Acoustic measurement of lubricant-film thickness distribution in ball bearings. J ACOUST SOC AM, 119(2), 863-871.
Dwyer-Joyce RS & Kasolang S (2006) Thickness measurements around the circumference of a journal bearing. Proceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006, 2006.
Dwyer-Joyce RS, Mills R & Loo-Morrey M (2006) Pedestrian slips caused by particle contamination. Proceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006, 2006.
Dwyer-Joyce RS & Reddyhoff T (2006) Ultrasonic measurement of EHL oil films in a mixed regime contact. Proceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006, 2006.
Reddyhoff T, Dwyer-Joyce R & Harper P (2006) Ultrasonic measurement of film thickness in mechanical seals. Sealing Technology(7), 7-11.
Reddyhoff T, Kasolang S, Dwyer-Joyce RS & Drinkwater BW (2005) The phase shift of an ultrasonic pulse at an oil layer and determination of film thickness. P I MECH ENG J-J ENG, 219(J6), 387-400.
Dwyer-Joyce RS (2005) The application of ultrasonic NDT techniques in tribology. P I MECH ENG J-J ENG, 219(J5), 347-366.
Zhang J, Drinkwater BW & Dwyer-Joyce RS (2005) Calibration of the ultrasonic lubricant-film thickness measurement technique. MEAS SCI TECHNOL, 16(9), 1784-1791.
Lewis R, Marshall MB & Dwyer-Joyce RS (2005) Measurement of interface pressure in interference fits. P I MECH ENG C-J MEC, 219(2), 127-139.
Lewis R & Dwyer-Joyce RS (2005) Wear of human teeth: a tribological perspective. P I MECH ENG J-J ENG, 219(J1), 1-18.
Dwyer-Joyce RS, Reddyhoff T & Drinkwater B (2005) Ultrasonic phase and amplitude and the measurement of oil film thickness. Proceedings of the World Tribology Congress III - 2005, 515-516.
Dwyer-Joyce RS & Valadez MG (2005) Shear and normal stiffness of mixed liquid-solid contacts. Proceedings of the World Tribology Congress III - 2005, 349-350.
Dwyer-Joyce RS, Reddyhoff T & Drinkwater B (2005) Ultrasonic phase and amplitude and the measurement of oil film thickness. Proceedings of the World Tribology Congress III - WTC 2005.
Dwyer-Joyce RS (2005) The life cycle of a debris particle. Tribology and Interface Engineering Series, 48, 681-690.
Harper P, Dwyer-Joyce RS, Sjödin U & Olofsson U (2005) Evaluation of an ultrasonic method for measurement of oil film thickness in a hydraulic motor piston ring. Tribology and Interface Engineering Series, 48, 305-312.
Lewis R & Dwyer-Joyce RS (2004) Wear mechanisms and transitions in railway wheel steels. P I MECH ENG J-J ENG, 218(J6), 467-478.
Marshall MB, Lewis R, Drinkwater BW & Dwyer-Joyce RS (2004) An ultrasonic approach for contact stress mapping in machine joints and concentrated contacts (vol 39, pg 339, 2004). J STRAIN ANAL ENG, 39(6), 745-750.
Dwyer-Joyce RS, Harper P & Drinkwater BW (2004) A method for the measurement of hydrodynamic oil films using ultrasonic reflection. TRIBOL LETT, 17(2), 337-348.
Lewis R, Dwyer-Joyce RS & Pickles MJ (2004) Interaction between toothbrushes and toothpaste abrasive particles in simulated tooth cleaning. WEAR, 257(3-4), 368-376.
Drinkwater BW & Dwyer-Joyce RS (2004) The on-line measurement of lubricant film thickness for condition monitoring. INSIGHT, 46(8), 456-460.
Marshall MB, Lewis R, Drinkwater BW & Dwyer-Joyce RS (2004) An ultrasonic approach for contact stress mapping in machine joints and concentrated contacts. J STRAIN ANAL ENG, 39(4), 339-350.
Dwyer-Joyce RS, Reddyhoff I & Drinkwater BW (2004) Operating limits for acoustic measurement of rolling bearing oil film thickness. TRIBOLOGY TRANSACTIONS, 47(3), 366-375.
Marshall MB, Lewis R, Drinkwater BW & Dwyer-Joyce RS (2004) Erratum: An ultrasonic approach for contact stress mapping in machine joints and concentrated contacts (Journal of Strain Analysis 39:4 (339-350)). Journal of Strain Analysis for Engineering Design, 39(6), 745-750.
Dwyer-Joyce RS & Hankinson N (2004) An ultrasonic technique for the measurement of elastic properties of soft surface coatings. Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2004(PART B), 1361-1369.
Dwyer-Joyce RS, Harper P & Drinkwater BW (2004) Evaluation of an ultrasonic oil film measurement technique for PTFE faced thrust pad bearings. Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2004(PART A), 697-710.
Dwyer-Joyce R, Reddyhoff T & Drinkwater B (2004) Operating limits for acoustic measurement of rolling bearing oil film thickness. Tribology Transactions, 47(3), 366-375.
Lewis R & Dwyer-Joyce RS (2003) Combating automative engine valve recession. TRIBOL LUBR TECHNOL, 59(10), 48-51.
Dwyer-Joyce RS, Drinkwater BW & Donohoe CJ (2003) The measurement of lubricant-film thickness using ultrasound. P ROY SOC LOND A MAT, 459(2032), 957-976.
Dwyer-Joyce RS & Drinkwater BW (2003) In situ measurement of contact area and pressure distribution in machine elements. TRIBOL LETT, 14(1), 41-52.
Lewis R, Dwyer-Joyce RS & Lewis J (2003) Disc machine study of contact isolation during railway track sanding. P I MECH ENG F-J RAI, 217(1), 11-24.
Lewis R & Dwyer-Joyce RS (2003) Combating automotive engine valve recession. Lubrication Engineering, 59(10), 48-51.
Quinn AM, Drinkwater BW & Dwyer-Joyce RS (2002) The measurement of contact pressure in machine elements using ultrasound. ULTRASONICS, 39(7), 495-502.
Lewis R & Dwyer-Joyce RS (2002) Wear of diesel engine inlet valves and seat inserts. P I MECH ENG D-J AUT, 216(D3), 205-216.
Hyde TR, Hydey T, Mergler YJ, Huis In 't Veld AJ, Beke AF, Dwyer-Joyce RS, Jones FR, Gregory J, Kapoor A, Deters L, Mueller F, Berger M, Cheikh M, Quilici S, Gailletaud G & Jacq C (2002) Session V - Tribological studies of dry and lubricated surfaces (1) - Dry. Tribology Series, 41, 871-872.
Kapoor A, Fletcher DI, Franklin FJ, Beke AF, Ward A, Lewis R, Dwyer-Joyce RS, Olver A, Sperring TP, Roylance BJ, Sperring T, Williams JA, Wang Y, Hadfield M, Diab Y, Coulon S, Ville F, Flamand L, Deters L, Poll G & Childs THC (2002) Session IX - Friction, wear and life of line contacts in machine elements (1) - Life predictions. Tribology Series, 41, 881-883.
Glavatskih S, Dwyer-Joyce RS, Harper P, Xu H, Booker JF, Medley JB, Mihara Y, Sekine K, Someya T, Zhou Q, Grau G, Saïd BB, Berthier Y, Iordanoff I & Mehenny DS (2002) Session X component tribology (1) - Plain bearings. Tribology Series, 41, 883-885.
Adachi K, Yamaguchi T, Kato K, Ishimine Y, Hollingsworth B, Glavatskih S, Booker JF, Bou-Said B, Kobayashi A, Harper B, Dwyer-Joyce RS, Drinkwater BW, Sperring T, Tournerie B, Danos JC & Fréne J (2002) Session XIII component tribology (2) - Bearings and mechanisms. Tribology Series, 41, 888-890.
Lewis R & Dwyer-Joyce RS (2001) Design tools for prediction of valve recession and solving valve/seat failure problems. SAE Technical Papers.
Dwyer-Joyce RS, Quinn AM & Drinkwater BW (2001) Experimental procedure for mapping Hertzian contacts. SCI CHINA SER A, 44, 423-430.
Dwyer-Joyce RS, Drinkwater BW & Quinn AM (2001) The use of ultrasound in the investigation of rough surface interfaces. J TRIBOL-T ASME, 123(1), 8-16.
Robinson AM, Drinkwater BW, Dwyer-Joyce RS & Payne JFB (2001) Measurement of the stiffness of joints in a graphite brick assembly. P I MECH ENG C-J MEC, 215(2), 167-177.
Grieve DG, Dwyer-Joyce RS & Beynon JH (2001) Abrasive wear of railway track by solid contaminants. P I MECH ENG F-J RAI, 215(3), 193-205.
Gao N, Dwyer-Joyce RS & Grieve DG (2001) Disc machine testing to assess the life of surface-damaged railway track. P I MECH ENG F-J RAI, 215(4), 261-275.
Dwyer-Joyce RS & Gao N (2001) Contact fatigue in damaged railway track. Tribology Series, 39, 811-817.
Ward A & Dwyer-Joyce RS (2001) Model experiments on automotive chain drive systems. Tribology Series, 39, 851-861.
Hodgson K, Dwyer-Joyce RS & Drinkwater BW (2001) Towards an ultrasonic mapping of the contact pressure within an engineering component. Tribology Series, 39, 79-85.
Dwyer-Joyce RS, Robinson AM, Drinkwater BW & Payne JFB (2001) Model experiments to determine the stiffness of joints in graphite reactor cores. Tribology Series, 39, 87-95.
Hankinson N, Dwyer-Joyce RS, Drinkwater B & Morgan L (2001) Observations of rough crack face contact under load. Tribology Series, 39, 819-827.
Hankinson N, Dwyer-Joyce RS, Drinkwater B & Morgan L (2001) Ultrasonic reflection from cracks in electric resistance welds in gas pipes. International Gas Research Conference Proceedings.
Gao N & Dwyer-Joyce RS (2000) The effects of surface defects on the fatigue of water- and oil-lubricated contacts. P I MECH ENG J-J ENG, 214(J6), 611-626.
Hodgson K, Dwyer-Joyce RS & Drinkwater BW (2000) Ultrasound as an experimental tool for investigating engineering contacts. Tribologia, 19(4), 9-17.
Roylance BJ, Williams JA & Dwyer-Joyce R (2000) Wear debris and associated wear phenomena - fundamental research and practice. P I MECH ENG J-J ENG, 214(J1), 79-105.
Lewis R, Dwyer-Joyce RS & Josey G (1999) Investigation of wear mechanisms occurring in passenger car diesel engine inlet valves and seat inserts. SAE Technical Papers.
Gao N, Dwyer-Joyce RS & Beynon JH (1999) Effects of surface defects on rolling contact fatigue of 60/40 brass. WEAR, 229, 983-994.
Dwyer-Joyce RS (1999) Predicting the abrasive wear of ball bearings by lubricant debris. Wear, 233-235, 692-701.
Dwyer-Joyce RS, Ushijima Y, Murakami Y & Shibuta R (1998) Some experiments on the microindentation of digital audio tape. TRIBOL INT, 31(9), 525-530.
Drinkwater BW, DwyerJoyce R & Cawley P (1997) A study of the transmission of ultrasound across solid-rubber interfaces. J ACOUST SOC AM, 101(2), 970-981.
Dwyer-Joyce RS, Bullough WA & Lingard S (1996) Elastohydrodynamic performance of unexcited electro-rheological fluids. International Journal of Modern Physics B, 10(23-24), 3181-3189.
Drinkwater BW, Dwyer-Joyce RS & Cawley P (1996) A study of the interaction between ultrasound and a partially contacting solid-solid interface. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 452(1955), 2613-2628.
Dwyer-Joyce RS & Heymer J (1996) The entrainnient of solid particles into rolling elastohydrodynamic contacts. Tribology Series, 31, 135-140.
Dwyer-Joyce RS, Sayles RS & Ioannides E (1994) An investigation into the mechanisms of closed three-body abrasive wear. Wear, 175(1-2), 133-142.
Beghini E, Dwyer-Joyce RS, Loannides E, Jacobson B, Lubrecht AA & Tripp JH (1992) Elastic/plastic contact and endurance life prediction. Journal of Physics D: Applied Physics, 25(3), 379-383.
Dwyer-Joyce RS, Hamer JC, Sayles RS & Ioannides E (1992) Paper II (iv) Lubricant Screening for Debris Effects to Improve Fatigue and Wear Life. Tribology Series, 21(C), 57-63.
Lubrecht AA, Dwyer-Joyce RS & Ioannides E (1992) Paper IV (iii) Analysis of the Influence of Indentations on Contact Life. Tribology Series, 21(C), 173-181.
Dwyer-Joyce RS, Hamer JC, Sayles RS & Ioannides E (1990) Surface damage effects caused by debris in rolling bearing lubricants, with an emphasis on friable materials.
Avan EY, Mills RS & Dwyer-Joyce RS () Ultrasonic Imaging of the Piston Ring Oil Film during operation in a Motored Engine – Towards Oil Film Measurement. SAE International Journal of Fuels and Lubricants, 3, 786-793.
Marshall MB, Lewis R, Dwyer-Joyce RS, Demilly F & Flament Y () Ultrasonic Measurement Of Railway Wheel Hub/Axle Press-Fit Contact Pressures. Proc. I.Mech.E. part F, 225, 287-298.

Conferences

Pugh SD, Zhu JJ & Dwyer-Joyce RS (2011) Experiments on Grease Performance in Aircraft Landing Gear Pin Joints. PROCEEDINGS OF THE STLE/ASME INTERNATIONAL JOINT TRIBOLOGY CONFERENCE, 2010, 199-201.
Avan EY, Mills RS & Dwyer-Joyce RS (2011) SIMULTANEOUS FILM THICKNESS AND FRICTION MEASUREMENT FOR A PISTON RING-CYLINDER CONTACT. PROCEEDINGS OF THE STLE/ASME INTERNATIONAL JOINT TRIBOLOGY CONFERENCE, 2010, 191-193.
Dwyer-Joyce RS, Zhu J & Reddyhoff T (2011) ULTRASONIC MEASUREMENT FOR FILM THICKNESS AND SOLID CONTACT IN ELASTOHYDRODYNAMIC LUBRICATION. PROCEEDINGS OF THE STLE/ASME INTERNATIONAL JOINT TRIBOLOGY CONFERENCE, 2010, 111-113.
Wheals JC, Hicks RJ, Guern P, Dwyer-Joyce R & Marshall M (2010) Engineering a 10MW gearbox for reliable offshore operation. European Wind Energy Conference and Exhibition 2010, EWEC 2010, 5, 3964-3977.
Herbert S, Dwyer-Joyce R, Marshall M & Streatfield A (2010) Monitoring lubrication in wind turbine rolling bearings. European Wind Energy Conference and Exhibition 2010, EWEC 2010, 4, 2538-2558.
Tassini N, Quost X, Lewis R, Dwyer-Joyce R, Ariaudo C & Kuka N (2009) A NUMERICAL MODEL OF TWIN DISC TEST ARRANGEMENT FOR EVALUATING RAILWAY WHEEL WEAR PREDICTION ALGORITHMS. PROCEEDINGS OF THE STLE/ASME INTERNATIONAL JOINT TRIBOLOGY CONFERENCE 2008, 469-471.
Dwyer-Joyce RS, Yao C & Lewis R (2009) A COMPARISON OF THREE METHODS FOR THE MEASUREMENT OF WHEEL RAIL CONTACT. PROCEEDINGS OF THE STLE/ASME INTERNATIONAL JOINT TRIBOLOGY CONFERENCE 2008, 541-543.
Kasolang S & Dwyer-Joyce RS (2008) Viscosity measurement in thin lubricant films using shear ultrasonic reflection. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY, 222(J3), 423-429.
Drinkwater BW, Zhang J, Kirk K, Elgoyhen J & Dwyer-Joyce RS (2008) Ultrasonic measurement of rolling element bearing lubrication using piezoelectric thin film transducers. REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOL 27A AND 27B, 975, 888-895.
Dwyer-Joyce RS, Drinkwater BW, Zhang J, Elgoyhen J & Kirk KJ (2008) Instrumentation of a rolling bearing with a thin film piezo coating for oil film measurement. PROCEEDINGS OF THE ASME/STLE INTERNATIONAL JOINT TRIBOLOGY CONFERENCE, PTS A AND B, 383-385.
Dwyer-Joyce RS & Beke A (2008) Contact stress, frictional torque and lubrication in articulating pin joints. PROCEEDINGS OF THE ASME/STLE INTERNATIONAL JOINT TRIBOLOGY CONFERENCE, PTS A AND B, 443-445.
Quost X, Tassini N, Lewis R, Dwyer-Joyce R, Ariaudo C & Kuka N (2008) Predicting railway wheel wear starting from multi-body analysis: A preliminary study. JRC2008: PROCEEDINGS OF THE ASME/IEEE/ASCE JOINT RAIL CONFERENCE, 79-87.
Dwyer-Joyce RS, Yao C & Lewis R (2008) Feasability study for an ultrasonic sensor for monitoring wheel flange contact. JRC2008: PROCEEDINGS OF THE ASME/IEEE/ASCE JOINT RAIL CONFERENCE, 119-124.
Dwyer-Joyce RS, Yao C, Lewis R, Zhang J & Drinkwater BW (2008) A rail mounted ultrasonic sensor for contact patch measurement. JRC2008: PROCEEDINGS OF THE ASME/IEEE/ASCE JOINT RAIL CONFERENCE, 125-130.
Zhang J, Drinkwater BW & Dwyer-Joyce RS (2006) The measurement of oil film thickness in ball bearings using ultrasound. Review of Progress in Quantitative Nondestructive Evaluation, Vols 25A and 25B, 820, 1794-1801.
Dwyer-Joyce RS, Osborne P & Beck SBM (2006) Measurements of contact and leakge in a pipe flange gasket. Proceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006, 2006
Lewis R, Bruni S, Ekberg A & Dwyer-Joyce RS (2005) A design tool for railway wheels incorporating damage models and dynamic simulations. Proceedings of the 2005 ASME/IEEE Joint Rail Conference, 29, 73-81.
Marshall MB, Lewis R & Dwyer-Joyce RS (2005) The application of ultrasound as a tool for studying contact stresses in railway engineering component contacts. Proceedings of the 2005 ASME/IEEE Joint Rail Conference, 29, 83-88.
Dwyer-Joyce RS, Lewis R & Goodman M (2005) Ultrasound as a tool to measure the wear of human tooth enamel. Proceedings of the World Tribology Congress III - 2005, 645-646.
Marshall MB, Lewis R, Dwyer-Joyce RS, Demilly F & Flament Y (2005) Ultrasonic measurement of wheel HUB/AXLE interference fit pressures. Proceedings of the World Tribology Congress III - 2005, 239-240.
Gonzalez-Valadez M, Dwyer-Joyce RS & Lewis R (2005) Ultrasonic reflection from mixed liquid-solid contacts and the determination of interface stiffness. Tribology and Interface Engineering Series, 48, 313-320.
Drinkwater BW, Dwyer-Joyce RS & Harper P (2004) On-line measurement of lubricant film thickness using ultrasonic reflection coefficients. REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 23A AND 23B, 23, 984-991.
Dwyer-Joyce RS & Gonzalez-Valadez M (2004) Ultrasonic determination of normal and shear interface stiffness and the effect of Poisson's ratio.. Transient Processes in Tribology, 43, 143-149.
Marshall MB, Lewis R, Dwyer-Joyce RS, Olofsson U & Bjorklund S (2004) Ultrasonic characterisation of a wheel/rail contact. Transient Processes in Tribology, 43, 151-158.
Lewis R & Dwyer-Joyce RS (2004) Wheel-rail wear and surface damage caused by adhesion sanding. Transient Processes in Tribology, 43, 731-741.
Lewis R, Dwyer-Joyce R, Slatter T & Brooks A (2004) Valve recession: From experiment to predictive model. VDI Berichte(1813), 79-93.
Braghin F, Bruni S, Dwyer-Joyce R & Lewis R (2004) A fast and reliable algorithm for the estimation of railway wheel wear. Proceedings of the Mini Conference on Vehicle System Dynamics, Identification and Anomalies, 201-208.
Beke AF, Dwyer-Joyce RS, Jones FR & Gregory J (2003) Wear testing of acetal for the prediction of polymer rolling bearing durability. TRIBOLOGICAL RESEARCH AND DESIGN FOR ENGINEERING SYSTEMS, 175-182.
Ward A, Lewis R & Dwyer-Joyce RS (2003) Incorporating a railway wheel wear model into multi-body simulations of wheelset dynamics. TRIBOLOGICAL RESEARCH AND DESIGN FOR ENGINEERING SYSTEMS, 367-376.
Lewis R, Marshall MB & Dwyer-Joyce RS (2003) Ultrasonic characterisation of an interference fit. TRIBOLOGICAL RESEARCH AND DESIGN FOR ENGINEERING SYSTEMS, 449-458.
Harper P, Hollingsworth B, Dwyer-Joyce R & Drinkwater B (2003) Journal bearing oil film measurement using ultrasonic reflection. TRIBOLOGICAL RESEARCH AND DESIGN FOR ENGINEERING SYSTEMS, 469-476.
Quinn AM, Drinkwater BT & Dwyer-Joyce RS (2002) High frequency measurements of the contact between machine elements using ultrasound. REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 21A & B, 615, 67-74.
Bucher FH & Dwyer-Joyce RS (2002) The real area of contact - A combination of experimental and numerical approaches. CONTACT MECHANICS, 219-228.
Jackson A, Webster MN, Medley JB, Lewis R, Marshall MB, Dwyer-Joyce RS, Xu H, Lubrecht AA, Dowson D & Hooke CJ (2002) Session XII tribological studies of dry and lubricated surfaces (3) - Lubricated. Tribology Series, 41, 886-888.
Harper P, Dwyer-Joyce R, Hollingsworth B & Drinkwater B (2002) Journal bearing oil film measurement using ultrasonic reflection. Tribology Series, 41, 469-476.
Quinn AM, Drinkwater BW & Dwyer-Joyce RS (2001) Ultrasonic characterization of the contact of components in machine elements. REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 20A AND 20B, 557, 1501-1508.
Lewis R & Dwyer-Joyce RS (2001) An experimental approach to solving combustion engine valve and seat wear problems. Tribology Series, 39, 629-640.
Robinson AM, Drinkwater BW & Dwyer-Joyce RS (2000) The stiffness of graphite-graphite joints: Ultrasonic investigation and modelling. REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 19A AND 19B, 509, 1293-1300.
Hodgson K, Dwyer-Joyce RS & Drinkwater BW (2000) Ultrasound as an experimental tool for investigating engineering contacts. 9TH NORDIC SYMPOSIUM ON TRIBOLOGY NORDTRIB 2000, VOL 2, 201, 377-386.
Dwyer-Joyce RS & Drinkwater BW (1998) Analysis of contact pressure using ultrasonic reflection. EXPERIMENTAL MECHANICS, VOLS 1 AND 2, 747-753.
Drinkwater B, DwyerJoyce R & Cawley P (1997) The interaction of ultrasound with a partially contacting solid-solid interface in the low frequency regime. REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 16A AND 16B, 16, 1229-1236.
DRINKWATER B, DWYERJOYCE R & CAWLEY P (1995) A STUDY OF THE TRANSMISSION OF ULTRASOUND ACROSS REAL ROUGH SOLID-SOLID INTERFACES. REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 14A AND 14B, 14, 1829-1836.
DRINKWATER B, DWYERJOYCE R & CAWLEY P (1994) A STUDY OF THE TRANSMISSION OF ULTRASOUND ACROSS REAL ROUGH SOLID-SOLID INTERFACES. 1994 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1-3, 1081-1084.
Dwyer-Joyce R, Hamer JC, Hutchinson JM, Ionannides E & Sayles RS (1991) Paper XIV (ii) A Pitting Fatigue Model for Gear Tooth Contacts. Tribology Series, 18(C), 391-400.