1988 …2020
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Personal profile


Simon Iwnicki graduated from Manchester University with a BSc in Mechanical Engineering then worked as a maintenance engineer at Chloride Motive Power in the 1980s working on battery production and electric vehicle design. He undertook a PhD in the dynamics of underground railway vehicles sponsored by the National Coal Board at South Bank University in London. He spent 21 years as Lecturer and Professor at Manchester Metropolitan University teaching and carrying out research into the interaction between railway vehicles and track where, in 1998, he set up the Rail Technology Unit which provided expert advice and solutions for the railway industry.

In 2012 he joined the University of Huddersfield as Professor of Railway Engineering and Director of the Institute of Railway Research.

Research Expertise and Interests

Professor Iwnicki’s main research activities are in the field of wheel-rail contact and computer modelling of railway vehicle suspensions, a small and highly specialised area which has a major influence on the design of railway vehicles and track. He has been working in this area for over 25 years and has built up a substantial international reputation for this work, providing not only valuable practical solutions to specific problems in the industry, but making significant contributions to the understanding of some of the fundamental mechanisms of the wheel-rail interaction on which the safe and economical operation of railways depends.

Research Degree Supervision

Click Here to see all postgraduate research opportunities with Professor Simon Iwnicki


  • Wheel-Rail Contact
  • Computer Modelling
  • Railway Vehicle Suspensions
  • Railway Vehicles
  • Railway Tracks
  • Wheel-Rail Interaction

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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Projects 2009 2020

Track to the Future (T2F): The science and analytical tools to design long life, low noise railway track systems

Iwnicki, S., Powrie, W., Preston, J. M., Blainey, S. P., McDowell, G., Roberts, C. & Thompson, D. J.


Project: ResearchResearch Council

Smart Maintenance and the Rail Traveller Experience

Iwnicki, S., Bevan, A. & Christodoulides, K.


Project: ResearchEU Government

Research Output 1988 2019

1 Citation (Scopus)

A new nonlinear displacement-dependent parametric model of a high-speed rail pantograph hydraulic damper

Wang, W., Zhou, Z., Zhang, W. & Iwnicki, S., 22 Feb 2019, In : Vehicle System Dynamics.

Research output: Contribution to journalArticle

Computer simulation

Effect of the nonlinear displacement-dependent characteristics of a hydraulic damper on high-speed rail pantograph dynamics

Wang, W., Liang, Y., Zhang, W. & Iwnicki, S., Mar 2019, In : Nonlinear Dynamics. 95, 4, p. 3439-3464 26 p., NODY-D-18-01832R1.

Research output: Contribution to journalArticle


The influence of wheelset flexibility on polygonal wear of locomotive wheels

Peng, B., Iwnicki, S., Shackleton, P., Crosbee, D. & Zhao, Y., 14 May 2019, (Accepted/In press) In : Wear.

Research output: Contribution to journalArticle


Using an inerter-based suspension to improve both passenger comfort and track wear in railway vehicles

Lewis, T. D., Jiang, J. Z., Neild, S. A., Gong, C. & Iwnicki, S., 14 Mar 2019, In : Vehicle System Dynamics. 22 p.

Research output: Contribution to journalArticle

Wear of materials

A practical method for simulating the evolution of railway wheel polygonalization

Peng, B., Iwnicki, S., Shackleton, P., Zhao, Y. & Cui, D., 22 Jan 2018, The Dynamics of Vehicles on Roads and Tracks: Proceedings of the 25th International Symposium on Dynamics of Vehicles on Roads and Tracks (IAVSD 2017), 14-18 August 2017, Rockhampton, Queensland, Australia. Spiryagin, M., Gordon, T., Cole, C. & McSweeney, T. (eds.). 1st ed. Queensland, Australia, Vol. 2. p. 753-758 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wear of materials

Activities 2015 2017

  • 3 Oral presentation
  • 1 Invited talk

Power Regeneration in the Primary Suspension of a Railway Vehicle

Ruichen Wang (Speaker), David Crosbee (Speaker), Simon Iwnicki (Speaker), Adam Bevan (Speaker), Yunshi Zhao (Speaker)
11 Jul 2017

Activity: Talk or presentation typesOral presentation

Railway Vehicle - Track Interaction: Recent Advances and a Vision for the Future

Simon Iwnicki (Keynote speaker)
10 Jul 2017

Activity: Talk or presentation typesInvited talk

Mathematical modelling of a full-scale roller rig to improve predictions of vehicle curving behaviour

Simon Iwnicki (Speaker), Paul Allen (Speaker), Philip Shackleton (Speaker)
11 Jul 2017

Activity: Talk or presentation typesOral presentation

Estimating the damage and marginal cost of different vehicle types on rail infrastructure : combining economic and engineering approaches

Simon Iwnicki (Speaker), Andrew Smith (Speaker), Aniruddha Kaushal (Speaker), Kristofer Odolinski (Speaker)
22 Apr 2015

Activity: Talk or presentation typesOral presentation