Ghislain Raze, between dynamics and vibration control in engineering structures
A researcher at the Laboratory of Space Structures and Systems (S3L) at the University of Liège, Ghislain Raze has just been awarded a research associate grant from the FNRS, a prestigious recognition that will enable him to continue his work in the field of non-invasive control and non-linear dynamics of complex systems.
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is project, entitled 'Control and non-linearity - new methodologies for effective testing of non-linear systems', aims to develop new experimental approaches to better understand and control the behaviour of dynamic structures that do not always react in a predictable manner (such as uncontrolled vibrations of aircraft wings in flight). This research has two objectives: to deepen theoretical knowledge in dynamics and to propose practical tools for structural control, particularly in aeronautics.
At the crossroads of dynamics (the study of how systems evolve over time) and control (guiding their behaviour), Ghislain Raze is interested in phenomena such as multi-stability and instabilities. "We are talking about situations where the same system can react very differently to identical stimuli, depending on its initial state," explains the researcher. "This poses major challenges for conducting experimental tests. By providing innovative solutions, we hope to be able to develop more reliable and effective tests."
In concrete terms, his research could lead to lighter, safer and more environmentally friendly aeronautical structures, but its applications go far beyond this, as they also concern various fields such as microelectromechanics (accelerometers, gyroscopes) and even medicine (diagnosis of epilepsy).
Ghislain Raze's project is in synergy with the ENTIRE project led by Professor Gaëtan Kerschen, thus reinforcing cutting-edge research on dynamic systems.
Ghislain Raze holds a PhD in engineering and technology. After completing international studies between Liège and Toulouse (ISAE-SUPAERO), he defended his thesis on piezoelectric vibration absorbers in 2021. He then obtained a research fellowship from the FNRS, before being awarded a research associate position in 2025. His research stays at ETH Zurich and Eindhoven University of Technology (TU/e) have strengthened his expertise in dynamics and control.
