Dr Jem Rongong

BEng, MSc, PhD, MIMechE, CEng

Senior Lecturer

PGT Admissions Tutor

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

Telephone: +44(0)114 222 7845
Fax: +44(0)114 222 7890

email : j.a.rongong@sheffield.ac.uk

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Profile

Dr Jem Rongong has been involved in research into vibration damping technologies since the early 1990s. This has included a period as the Deputy Director of the Rolls-Royce Materials Damping UTC (200-2007). Jem has been a member of the academic staff in the Department since 2004.

Areas of Research

Viscoelastic damping materials
• development, analysis and testing of polymers
• design and testing of syntactic foams and other multiphase systems

Surface damping treatments
• free and constrained layer systems using organic and ceramic materials
• methods of application

Friction-based systems
• design and analysis of particle dampers including the use of discrete element analysis
• granular polymeric materials as fillers
• metal mesh and other dry fibre systems

Active & Adaptive Structures
• active constrained layer damping
• adaptive particle dampers
• shape memory actuated systems

Design of damped components
• hollow turbomachinery blades
• numerical optimisation techniques including genetic algorithms and cellular automata
• composite structures

Current Research Grants

• Durable syntactic foams, Rolls-Royce plc, 2008-2010
• Rubber spring model, BAE Systems, 2009-2010
• Uncertainty propagation in structures, systems and processes, EPSRC Platform, 2006-2011

Recently completed research
• Design of damping coatings across the length scales, The British Council (2007-2008)
• Artima: Increasing the life of aerospace structures through combined active vibration control and structural health monitoring. EU Framework 7 (2004-2007)
• Advact: Morphing aeroengine parts using shape memory materials, EU Framework 7 (2004-2008)
• Semiactive particle dampers: modelling and control of nonlinearity in particle dampers, EPSRC 2005-2007)
• Rolls-Royce UTC in Materials Damping (1998-2007)

Teaching

MEC201: Dynamics of Structures and Machines - Module leader
MEC 330: Experiments and Modelling
MEC333: Integrated Design Skills

Recent publications

• Strategies for using cellular automata to locate constrained layer damping on vibrating structures,
  Chia, C. M., Rongong, J. A., and Worden, K. (2009),
  Journal of Sound and Vibration, 319(1-2), pp. 119-139.
  Online (journal subscription required)
  Online (open access)

 

• On the energy leakage of discrete wavelet transform,
  Peng, Z. K., Jackson, M. R., Rongong, J. A., Chu, F. L., and Parkin, R. M. (2009),
  Mechanical Systems and Signal Processing, 23(2), pp. 330-343.
  Online (journal subscription required)
  Online (open access)

 

• Control of particle damper nonlinearity,
  Wong, C. and Rongong, J. (2009),
  AIAA Journal, 47(4), pp. 953-960.
  Online (journal subscription required)

 

• Energy dissipation prediction of particle dampers,
  Wong, C. X., Daniel, M. C., and Rongong, J. A. (2009),
  Journal of Sound and Vibration, 319(1-2), pp. 91-118.
  Online (journal subscription required)
  Online (open access)

 

• Damage localisation in a stiffened composite panel,
  Chetwynd, D., Mustapha, F., Worden, K., Rongong, J. A., Pierce, S. G., and Dulieu-barton, J. M. (2008),
  Strain, 44(4), pp. 298-307.
  Online (journal subscription required)

 

• Damage detection in an aluminium plate using outlier analysis,
  Chetwynd, D., Rongong, J. A., Pierce, S. G., and Worden, K. (2008),
  Fatigue and Fracture of Engineering Materials and Structures, 31(8), pp. 629-643.
  Online (journal subscription required)

 

• Evolution of constrained layer damping using a cellular automaton algorithm,
  Chia, C. M., Rongong, J. A., and Worden, K. (2008),
  Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 222(4), pp. 585-597.
  Online (journal subscription required)
  Online (open access)

 

• The dynamic characterisation of disk geometry particle dampers,
  Liu, W., Tomlinson, G. R., and Rongong, J. A. (2005),
  Journal of Sound and Vibration, 280(3-5), pp. 849-861.
  Online (journal subscription required)
  Online (open access)

 

• Plasma deposition of constrained layer damping coatings,
  Rongong, J. A., Goruppa, A. A., Buravalla, V. R., Tomlinson, G. R., and Jones, F. R. (2004),
  Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 218(7), pp. 669-680.
  Online (journal subscription required)
  Online (open access)