Journal Articles
Tomlinson, K, Davison, S,
King, P, Howell-Smith, S, Slatter, T, Morris, N (2024)
On the role of friction modifier additives in the oil control ring and piston liner contact,
Journal of Tribology, 146(4), 042201, ISSN: 0742-4787. DOI:
10.1115/1.4064302.
Forder, M, Morris, N,
King, P, Balakrishnan, S, Howell-Smith, S (2022)
An experimental investigation of low viscosity lubricants on three piece oil control rings cylinder liner friction,
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 236(11), pp.2261-2271, ISSN: 1350-6501. DOI:
10.1177/13506501221076892.
Morris, N, Davies, JA, Leighton, M,
King, P, Rahnejat, H (2019)
Oil film separation and drag torque in disengaged wet brakes,
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 234(1), pp.17-27, ISSN: 0954-4070. DOI:
10.1177/0954407019844358.
Fatourehchi, E, Mohammadpour, M,
King, P, Rahnejat, H, Trimmer, G, Womersley, B, Williams, A (2019)
Effect of tooth profile modification on the durability of planetary hub gears,
International Journal of Powertrains, 8(1), pp.40-57, ISSN: 1742-4267. DOI:
10.1504/IJPT.2019.098120.
Leighton, M, Morris, N, Trimmer, G,
King, P, Rahnejat, H (2018)
Efficiency of disengaged wet brake packs,
Proc. IMechE, Part D: Journal of Automobile Engineering, ISSN: 0954-4070. DOI:
10.1177/0954407018758567.
Fatourehchi, E, Mohammadpour, M,
King, P, Rahnejat, H, Trimmer, G, Womersley, B, Williams, A (2018)
Microgeometrical tooth profile modification influencing efficiency of planetary hub gears,
International Journal of Powertrains, ISSN: 1742-4267. DOI:
10.1504/IJPT.2018.10011451.
Gore, M, Morris, N, Rahmani, R, Rahnejat, H,
King, P, Howell-Smith, SJ (2017)
A combined analytical-experimental investigation of friction in cylinder liner inserts under mixed and boundary regimes of lubrication,
Lubrication Science, 29(5), pp.293-316, ISSN: 0954-0075. DOI:
10.1002/ls.1369.
Fatourehchi, E, Mohammadpour, M,
King, P, Rahnejat, H, Trimmer, G, Williams, A, Womersley, B (2017)
Effect of mesh phasing on the transmission efficiency and dynamic performance of wheel hub planetary gear sets,
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, ISSN: 2041-2983. DOI:
10.1177/0954406217737327.
Leighton, M, Morris, N, Gore, M, Rahmani, R, Rahnejat, H,
King, P (2016)
Boundary interactions of rough non-gaussian surfaces,
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, ISSN: 1350-6501. DOI:
10.1177/1350650116656967.
Morris, N, Rahmani, R, Rahnejat, H,
King, P, Howell-Smith, SJ (2015)
A numerical model to study the role of surface textures at top dead center reversal in the piston ring to cylinder liner contact,
Journal of Tribology, 138(2), 021703, ISSN: 0742-4787. DOI:
10.1115/1.4031780.
Gore, M, Rahmani, R, Rahnejat, H,
King, P (2015)
Assessment of friction from compression ring conjunction of a high-performance internal combustion engine: a combined numerical and experimental study,
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 230(12), pp.2073-2085, ISSN: 0954-4062. DOI:
10.1177/0954406215588480.
Howell-Smith, S, Rahnejat, H,
King, PD, Dowson, D (2014)
Reducing in-cylinder parasitic losses through surface modification and coating,
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING, 228(4), pp.391-402, ISSN: 0954-4070. DOI:
10.1177/0954407013512626.
Gore, M, Theaker, M, Howell-Smith, S, Rahnejat, H,
King, PD (2014)
Direct measurement of piston friction of internal-combustion engines using the floating-liner principle,
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 228(3), pp.344-354, ISSN: 0954-4070. DOI:
10.1177/0954407013511795.
Von Chappuis, H, Mavros, G,
King, PD, Rahnejat, H (2013)
Prediction of impulsive vehicle tyre-suspension response to abusive drive-over-kerb manoeuvres,
Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, 227(2), pp.133-149, ISSN: 1464-4193. DOI:
10.1177/1464419312469756.
Morris, NJ, Rahmani, R, Rahnejat, H,
King, P, Fitzsimons, B (2013)
The influence of piston ring geometry and topography on friction,
Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 227(2), pp.141-153, DOI:
10.1177/1350650112463534.
Shahmohamadi, H, Rahmani, R, Rahnejat, H, Garner, CP,
King, PD (2013)
Thermo-Mixed Hydrodynamics of Piston Compression Ring Conjunction,
Tribology Letters, pp.1-18, ISSN: 1023-8883. DOI:
10.1007/s11249-013-0163-5.
Morris, N, Rahmani, R, Rahnejat, H,
King, PD, Fitzsimons, B (2012)
Tribology of piston compression ring conjunction under transient thermal mixed regime of lubrication,
Tribology International, ISSN: 0301-679X.
Gore, M, Howell-Smith, SJ,
King, PD, Rahnejat, H (2012)
Measurement of incylinder friction using the floating liner principle,
Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division, pp.901-906, ISSN: 1529-6598. DOI:
10.1115/ICES2012-81028.
De la Cruz, M, Theodossiades, S,
King, PD, Rahnejat, H (2011) Transmission drive rattle with thermo-elastohydrodynamic impacts: Numerical and experimental investigations,
International Journal of Powertrains, (In press).
Mishra, PC, Rahnejat, H,
King, P (2010)
Transient thermo-elastohydrodynamics of rough piston ring conjunction, pp.518-541, DOI:
10.1533/9781845699932.2.518.
Slatter, T, Taylor, H, Lewis, R,
King, PD (2009)
The influence of laser hardening on wear in the valve and valve seat contact,
Wear, 267(5-8), pp.797-806, ISSN: 0043-1648. DOI:
10.1016/j.wear.2009.01.040.
Mishra, PC, Rahnejat, H,
King, PD (2009)
Tribology of the ring-bore conjunction subject to a mixed regime of lubrication,
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 223, pp.987-998, DOI:
10.1243/09544062JMES1220.
Jaiswal, M, Mavros, G, Rahnejat, H,
King, PD (2009)
Influence of tyre transience on anti-lock braking,
Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, Vol. 224, pp.1-17, DOI:
10.1243/14644193JMBD225.
Sharaf, AM, Mavros, G, Rahnejat, H,
King, PD, Mohan, SK (2008)
Optimisation of AWD off-road vehicle performance using visco-lock devices,
International Journal of Heavy Vehicle Systems, 15(2/3/4), pp.188-207.
Sharaf, AM, Rahnejat, H,
King, PD (2008)
Analysis of handling characteristics of all-wheel-drive off-road vehicles,
International Journal of Heavy Vehicle Systems, 15(1), pp.89-106, DOI:
10.1504/IJHVS.2008.017986.
Mavros, G, Rahnejat, H,
King, PD (2007)
A Framework for the Characterisation of the Transient Handling Responses of Non-linear Vehicles,
Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, 221(1), pp.1-11, ISSN: 1464-4193. DOI:
10.1243/1464419JMBD65.
Azman, M,
King, PD, Rahnejat, H (2007)
Combined bounce, pitch, and roll dynamics of vehicles negotiating single speed bump events,
Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, 221(1), pp.33-40, ISSN: 1464-4193. DOI:
10.1243/1464419JMBD55.
Gnanakumarr, MM,
King, PD, Theodossiades, S, Rahnejat, H (2006)
Methods of palliation for high frequency elasto-acoustic response of truck drivetrain systems,
International Journal of Heavy Vehicle Systems, 13(4), pp.253-262, ISSN: 1744-232X. DOI:
10.1504/IJHVS.2006.010582.
Balakrishnan, S,
King, PD, Howell Smith, S, Rahnejat, H (2006)
The measurement of liner-piston skirt oil film thickness by an ultrasonic means,
SAE Transactions: Journal of Engines, Paper No 2006-01-0648, 115(3), pp.348-353.
Rahnejat, H, Balakrishnan, S,
King, PD, Howell Smith, S (2006)
In-cylinder friction reduction using a surface finish optimization technique,
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 220(D9), pp.1309-1318, ISSN: 0954-4070. DOI:
10.1243/09544070JAUTO282.
Mavros, G, Rahnejat, H,
King, PD (2005)
Transient analysis of tyre friction generation using a brush model with interconnected viscoelastic bristles,
Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, 219(3), pp.275-283, ISSN: 1464-4193. DOI:
10.1243/146441905X9908.
Mavros, G, Rahnejat, H,
King, PD (2005)
Analysis of the transient handling properties of a tyre, based on the coupling of a flexible carcass-belt model with a separate tread incorporating transient viscoelastic frictional properties,
Vehicle System Dynamics, 43(s1), pp.199-208, ISSN: 0042-3114. DOI:
10.1080/00423110500140658.
Azman, M, Rahnejat, H,
King, PD, Gordon, TJ (2004)
Influence of anti-dive and anti-squat geometry in combined vehicle bounce and pitch dynamics,
Proceedings of the Institution of Mechanical Engineers Part K: Journal of Multi-body Dynamics, 218(4), pp.231-242, ISSN: 1464-4193. DOI:
10.1243/1464419043541464.
Mavros, G, Rahnejat, H,
King, PD (2004)
Investigation of steady-state tyre force and moment generation under combined longitudinal and lateral slip conditions,
Vehicle System Dynamics, Supplement, 41, pp.351-360, ISSN: 0042-3114.
King, PD, Jackson, MR, Galer Flyte, MD, Grafton, A (1996) The smart seat approach,
Sensor Review, 16(4), pp.25-30.
King, PD and West, TC (1995) High Speed Print Registration and Colour Quality Control,
Sensor Review, 15(3), pp.10-13, ISSN: 0260-2288.
Conferences
Morris, N, Forder, M, Dolatabadi, N,
King, P, Rahmani, R, Rahnejat, H, Howell-Smith, S (2023)
Oil control ring friction and low viscosity lubricants: A combined numerical and experimental analysis. In
Eight European Conference and Exhibition on ‘Lubrication Maintenance and Tribotechnology’ (LUBMAT) 2023; Eight European Conference and Exhibition on ‘Lubrication Maintenance and Tribotechnology’ (LUBMAT) 2023, Manchester, UK.
Tomlinson, K, Morris, N,
King, P, Slatter, T, Morris, N (2023) Measuring the frictional behaviour of lubricants with an antiwear additive and different friction modifiers. In
77th STLE Annual Meeting & Exhibition, Long Beach Convention Center, USA.
Forder, M, Umer, J, Morris, N,
King, P, Howell-Smith, SJ, Rahnejat, H (2018)
Lubricant base stock-surface interaction. In
3rd International Brazilian Conference on Tribology-TriboBR 2018, Florinopolis Brazil.
Leighton, M, Davies, JA, Morris, N, Rahnejat, H, Trimmer, G (2017)
A combined numerical and experimental investigation of disengaged wet clutch system power loss. In
World Tribology Congress 2017, Bejing.
Fatourehchi, E, Mohammadpour, M,
King, P, Rahnejat, H, Trimmer, G, Womersley, B (2016)
Effects of gear modification and surface finish on planetary gear systems efficiency. In
TriboUK 2016, University of Leeds.
Leighton, M, Morris, N, Rahmani, R, Trimmer, G,
King, P, Rahnejat, H (2016)
A combined numerical and experimental investigation of disengaged wet brake plate power loss. In
3rd Biennial International Conference on Powertrain Modelling and Control (PMC 2016), Loughborough University.
Umer, J, Rahnejat, H, Rahmani, R,
King, P, Martinez-Insua-Rodriguez, A, Morris, N (2016)
Lubricant-surface system mitigating in-cylinder friction. In
TriboUK 2016, University of Leeds, UK.
Shahmohamadi, H, Rahmani, R, Rahnejat, H,
King, PD, Garner, CP (2013)
Cavitating Flow in Engine Piston Ring-Cylinder Liner Conjunction. In
ASME 2013 International Mechanical Engineering Congress & Exposition, IMECE2013-62395, San Diego, California, USA.
Morris, NJ, Rahnejat, H, Rahmani, R,
King, P, Leighton, M, De la Cruz, M (2013)
A Numerical and Experimental Approach in Understanding the Performance of Textured Surfaces in Sliding Contacts. In
World Tribology Congress, Torino, Italy, pp.1-4.
Shahmohamadi, H, Rahmani, R, Rahnejat, H, Garner, CP,
King, PD (2013)
CFD Modelling of Cavitation Phenomenon in Piston Ring/Cylinder Liner Conjunction. In
5th World Tribology Congress (WTC 2013), Tornio, Italy.
Gore, M, Howell-Smith, SJ, King, PD, Rahnejat, H (Accepted for publication) Measurement of in-cylinder friction using the floating liner principle. In ICES 2012 (Internal Combustion Engine Division) Spring Technical Conference, Proceedings of the ASME 2012 Internal Combustion Engine Division Spring Technical Conference, Torino, Italy.
Morris, NJ, Rahnejat, H, Rahmani, R,
King, PD, Fitzsimons, B (2012)
Performance Evaluation of Piston Compression Ring through Accelerated Wear in Engine Tests. In
ASME Internal Combustion Engine Division Spring Technical Conference, ASME 2012 International Engine Division Spring Technical Conference, Turin, pp.1003-1008, ISBN: 978-0-7918-4466-3. DOI:
10.1115/ICES2012-81201.
Morris, N, Rahmani, R, Rahnejat, H,
King, PD, Fitzsimons, B (2011) Tribology of Piston Compression Ring Conjunction under Transient Thermal Mixed Regime of Lubrication. In
38th Leeds-Lyon Symposium on Tribology, Lyon, France.
Littlefair, B, Howell Smith, S, Theodossiades, S,
King, PD, Rahnejat, H (2011)
Tribology of Piston Skirt Conjunction. In
3rd European Conference on Tribology, Vienna, Austria, pp.739-744.
Morris, N, Rahmani, R, Rahnejat, H,
King, PD (2011) Optimizing Piston Ring Topography to Minimize Running-in Wear in Mixed Regime of Lubrication. In
ASME/STLE 2011 International Joint Tribology Conference (IJTC2011), Paper No. IJTC2011-61090, Los Angeles, California, USA.
De la Cruz, M, Theodossiades, S, Rahnejat, H,
King, PD (2009) Transient lubricant conjunctional behaviour in transmission rattle. In
2nd European Conference on Tribology, ECOTRIB 2009, Pisa, Italy, p.6.
Al Hossein, S, Mavros, G, Rahnejat, H,
King, PD, Mohan, SK (2007) Directional Control and Stability of AWD Off-Road Vehicles fitted with Visco-Lock Devices. In
IAVSD 20th Symposium, Proceedings IAVSD 2007, Berkeley, California, USA, pp.1-19.
Jaiswal, M, Rahnejat, H,
King, PD, Mavros, G (2007)
A multi-body dynamics approach for the study of critical handling manoeuvres on surfaces with uneven friction. In Bottasso, L, C, Masarati, P, Trainelli, eds, L (ed)
Proceedings of the ECCOMAS Thematic Conference, Multibody Dynamics 2007, Milano, Italy, pp.1-19.
Al Hossein, S, Mavros, G,
King, PD, Rahnejat, H (2006) Multi-physics Modelling Approach in All-terrain Vehicle Dynamics. In
Proceedings of the ASME International Mechanical Engineering Congress & Exposition (reviewed and accepted), Chicago, Illinois, USA, tba.
Sharaf, AM, Mavros, G, Rahnejat, H,
King, PD (2006)
Multi-Physics Modelling Approach in All Terrain Vehicle Longitudinal Dynamics, Paper IMECE2006-13578. In
Proceedings of the 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE06, Chicago, Illinois, USA, p.10.
Dwyer Joyce, RS, Green, DA, Balakrishnan, S, Harper, P, Lewis, R, Howell Smith, S,
King, PD, Rahnejat, H (2006) The Measurement of Liner-Piston Skirt Oil Film Thickness by an Ultrasonic Means, Paper No P5-06P-596. In
Proceedings of the SAE Congress, Detroit, Michigan, USA, p.6.
Sharaf, AM, Rahnejat, H, Mavros, G,
King, PD (2006) Multi-physics modelling approach in all terrain vehicle longitudinal dynamics. In
, American Society of Mechanical Engineers, Design Engineering Division (Publication) DE.
King, PD, Jackson, MR, Galer Flyte, MD, Grafton, AJ (1996) A Smart Seat Concept as an Aid to Vehicle Secondary Safety. In
Automotive Passenger Safety, Birmingham, UK, pp.53-58.
King, PD, Jackson, MR, Galer Flyte, MD, Grafton, AJ (1995) A Smart Seat Concept as an Aid to Vehicle Secondary Safety. In
Proceedings of Autotech 95, Birmingham National Exhibition Centre, UK, pp.1361-1366.
Grafton, AJ, Galer Flyte, MD,
King, PD, Jackson, MR (1995) Pre-Crash Sensing of Occupant Characteristic and Position : Enhancing Secondary Safety System Performance. In
1995 International ICROBI Conference on the Biomechanics of Impact, Proceedings of the 1995 International Conference on the Biomechanics of Impact, Brunnen, Switzerland, pp.311-323.
King, PD and Preston, ME (1995) Integration of Undergraduate Engineering through Total Product Design. In Evatt, M and Jones, AE (ed)
Proceedings of 2nd National Conference in Product Design Education, Coventry, UK, pp.146-153.
King, PD and Preston, ME (1994) Mechatronic Design of Piezoelectric Based Small Actuators. In
Proceedings for the Dedicated Conferences on Mechatronics and Supercomputing Applications in the Transportation Industries, 27th ISATA Conference, Aachen, Germany, pp.107-113.
King, PD and West, TC (1994) Challenges in High Speed Printing Machinery Design. In
Proceedings of MMSG Vision Systems Conference, Brunel University, UK, pp.33-37.
King, PD and West, TC (1994) Vision Based Aspects of High Speed Machinery Design. In Acar, M, Makra, J, Penney, eds, E (ed)
Proceedings of Mechatronics; The Basis for new Industrial Development, Joint Hungarian/British Mechatronics Conference, Budapest, Hungary, pp.285-290, ISBN: 1 85312 367 6.
Jackson, MR, Preston, ME,
King, PD (1994) Design and Development of a Postgraduate Course in Mechatronics. In Acar, M, Makra, J, Penney, eds, E (ed)
Proceedings of Mechatronics: The Basis for new Industrial Development, Joint Hungarian/British Mechatronics Conference, Budapest, Hungary, pp.785-790, ISBN: 1 85312 367 6.
King, PD (1994) Applications of Laser Holography and Electronic Speckle Pattern Interferometry to the Design of Manufacturing Machines. In
Joint Meeting on Optical Sensors for Manufacturing Machines. UK Sensors Group / MMSG / Optical Sensors Collaborative Association, London, UK, pp.8-13.
King, PD and Preston, ME (1994) The Use of Holographic Interferometry and Electronic Speckle Pattern Interferometry in the Design of Complex Structures. In
Proceedings of Tempus Conference, Technical University of Prague, Czechoslovakia, pp.54-61.
King, PD (1993) Print Registration and Colour Recognition in the Packaging Industry. In
Proceedings of MMSG Machine Vision Seminar, Brunel University, UK, pp.1-8.
King, PD and West, TC (1993) Colour Recognition in the Packaging Industry. In
Proceedings of DTI High Speed Machinery Colour Seminar, London, UK, pp.1-5.
Preston, ME and
King, PD (1993) An Approach to Quality Control in the Teaching of Engineering Design. In
Proceedings of SEFI, Lulea, Sweden, pp.543-556.
King, PD and Preston, ME (1993) The Assessment of Integrated Engineering Design as Part of an Undergraduate Engineering Course. In
Proceedings of SEFI, Lulea, Sweden, pp.381-385.
Rushforth, EJ,
King, PD, West, TC (1992) Sensory Integration in High Speed Packaging Machinery. In
IMechE International Conference : Mechatronics - Designing Intelligent Machines, University of Dundee, Scotland, pp.53-60, ISBN: 0 85298 840 0.
King, PD (1992) Integrated Design of High Speed Packaging Machinery. In
DTI High Speed Machinery Programme Conference, PERA, Melton Mowbray, UK, pp.1-4.
King, PD (1992) The Use of Laser Based Analysis Techniques as Design Loop Tools in Vehicle Refinement. In
Proceedings ISATA, Florence, Italy, pp.1-8.
King, PD (1992) Sensor Integration in High Speed Packaging Machinery. In
Manufacturing Machines Sensors Group Conference, PERA, Melton Mowbray, UK, pp.1-8.
