Prof. James Brownjohn

brownjohnProfessor Brownjohn joined the University of Exeter in 2013 after periods at University of Bristol (1984-1992), Nanyang Technological University Singapore (1992-2004), University of Plymouth (2004-2005) and University of Sheffield (2005-2013). His academic career has revolved around experimental assessment of the performance of a range of civil structures, using full-scale dynamic testing, long-term monitoring and shaking table testing.

His present research and professional interests include wind engineering, earthquake engineering, structural health monitoring (SHM), finite element model updating, vibration serviceability, system identification and biomechanics. He has published in all these areas in a number of journals. His experience with ambient vibration testing and operational modal analysis using minimal portable equipment is a complement to the forced vibration testing approach traditionally used by the Vibration Engineering Section, of which he is a member.

Professor Brownjohn is involved in promoting developments in structural health monitoring through involvement in the International Society for Structural Health monitoring of Intelligent Infrastructure as Vice President and by contributing to the ASCE State of the Art Report on Structural Identification of Constructed Systems.

Professor Brownjohn is a founding director of Full Scale Dynamics Ltd, a University spin-off company.

Qualifications

BSc Mechanical Engineering, University of Bristol; PhD, University of Bristol; DEng, University of Bristol; CEng MIStructE FIMechE

Selected Publications

  • Racic V. and Brownjohn J.M.W. (2011) Mathematical modelling of random narrow band lateral excitation of footbridges due to pedestrians walking. Computers & Stuctures, 90-91 , December, pp 116-130. ISSN 0045-7949. DOI 10.1016/j.compstruc.2011.10.002
  • Brownjohn J.M.W., Magalhaes F., Caetano E., Cunha A., Ambient vibration re-testing and operational modal analysis of the Humber Bridge. Engineering Structures 32(8), 2010, pp2003-2018.  ISSN 0141-0296. DOI 10.1016/j.engstruct.2010.02.034
  • Brownjohn J.M.W., Carden E.P., Goddard C.R. and Oudin G. (2010) Real-time performance monitoring of tuned mass damper system for a 183 m reinforced concrete chimney. Journal of Wind Engineering and Industrial Aerodynamics, 98 (3), March, pp 169-179. ISSN 0167-6105. DOI 10.1016/j.jweia.2009.10.013
  • Brownjohn J.M.W. (2007) Structural Health Monitoring of Civil Infrastructure. Philosophical Transactions of the Royal Society A, 365 (1851), pp 589-622. ISSN 1471-2946.
  • Brownjohn J.M.W., Pavic A. and Omenzetter P. (2004) A spectral density approach for modelling continuous vertical forces on pedestrian structures due to walking. Canadian Journal of Civil Engineering, 31 (1), January, pp 65-77. ISSN ISSN 1208-6029.
  • Brownjohn J.M.W. (2003) Ambient vibration studies for system identification of tall buildings. Earthquake Engineering & Structural Dynamics, 32 (1), January, pp 71-95. ISSN 0098-8847. DOI 10.1002/eqe.215
  • Brownjohn J.M.W., Moyo P., Omenzetter P. and Lu Y. (2003) Assessment of Highway Bridge Upgrading by Dynamic Testing and Finite-Element Model Updating. Journal of bridge engineering (ASCE), 8 (3), pp 162-172. ISSN 1084-0702. DOI 10.1061/(ASCE)1084-0702(2003)8:3(162)
  • Aldimashki, M A, Brownjohn, J M W, Bhattacharya S, Experimental and analytical study of pile foundations under seismic excitation. Journal of Earthquake Engineering 18(5), 2014, pp655-673.DOI:10.1080/13632469.2014.899170
  • All publications

Grants

  • 2011- 2015: “Synchronisation in dynamic loading due to multiple pedestrians and occupants of vibration-sensitive structures” funded by EPSRC. Investigator: JMW Browhjohn and Dr V Racic. Value £518,664.
  • 2008-2012: “Integrated European Industrial Risk Reduction System” funded by European Union FP7. Investigator: JMW Brownjohn. Value €250,000.
  • 2008-2011: “Novel data mining and performance diagnosis systems for structural health monitoring of suspension bridges” funded by EPSRC. Investigators: JMW Brownjohn and K Worden. Value: £450,383.
  • 2007-2009: “Human walking and running forces: Novel experimental characterisation and application in civil engineering dynamics” funded by EPSRC. Investigators: JMW Brownjohn, A Pavic and P Reynolds. Value: £306,675.
  • 2005-2007: “Marie Curie International Reintegration Grant” funded by European Commission. Investigator: JMW Brownjohn. Value: £56,288.