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Details for Professor Alan Champneys

Personal details
Name Professor Alan Champneys
Job title Professor of Applied Non-linear Mathematics
Department Department of Engineering Mathematics University of Bristol
Personal web page
Work contact details
Email address
Telephone number work(0117) 331 5643
Fax number fax(0117) 331 5606
Qualifications BSc(Birm), DPhil(Oxon)
Professional details
Membership of professional bodies Institute for Mathematics and Its Applications
London Mathematical Society
Keywords chaos
nonlinear dynamics
solitary wave
dynamics of impact
engineering instability
Areas of expertise Nonlinear dynamics and chaos and its application, particularly to engineering systems.

Bifurcation theory, i.e. understanding abrupt changes from regular to complex dynamics. Application to rotor dynamics, aircraft bridges, flow-induced oscillation, parametric resonance in general including stabilisation 'upside down'.

The theory of how continuous enterties give rise to localised response. For example, solitary waves, localised buckling patterns and 'kinks' or dislocations in atomic lattices. A unifying mathematical description of such phenomena, and dedicated computational techniques.

Solitary waves in nonlinear optics. Localised pulses of light, so-called 'light bullets'.

The mechanics of rods, such as helical buckling of cables, pipelines and DNA strands.

Dynamics of piecewise systems, such as impacts, switches and backlash.
Media experience Very little experience: one live radio interview 10 years ago and phone interviews with journalists from New Scientist, Nature and EPSRC's Newsline in 2002