Research

Structural dynamics and control of offshore structures.

Core doctoral research

PhD / Doctorat de Mécanique
Dec. 2024–2027 expected

Doctoral research

Active vibration control of jacket-supported offshore wind turbine structures.

My doctoral research focuses on the dynamic response and active vibration control of jacket-supported offshore wind turbines, combining reduced-order modelling, finite-element analysis and a partitioned coupled simulation framework.

Research environment
Laboratoire de Mécanique de Normandie (LMN)
INSA Rouen Normandie
Supervision
Didier Lemosse · Younes Aoues

Official thesis titleAtténuation des vibrations d'une fondation, de type jacket, d'une éolienne marine par amortissement actif.

The work develops structural finite-element models and a partitioned ANSYS–MATLAB coupled simulation framework for the NREL 5 MW reference offshore wind turbine with an OC4 jacket substructure.

Active control is investigated using a Twin Rotor Damper and discrete LQR control, combining reduced-order models for controller development with full-order transient structural simulations.

Research structure

Work at different stages of maturity.

The programme separates established doctoral work, current developments and completed prior research.

Core doctoral research

Structural dynamics & active vibration control

Structural response, reduced-order modelling, Twin Rotor Damper concepts, discrete LQR control and full-order transient analysis.

Offshore structural response

Environmental loading and response evaluation within the NREL 5 MW and OC4 jacket research framework.

Current development

Fatigue, reliability & surrogate modelling

Developing work toward structural fatigue, reliability-oriented analysis and Gaussian Process / Kriging methods for computationally intensive simulations.

Previous research

Fluid–structure interaction

A completed six-month research internship at LOMC, Université Le Havre Normandie, studied wave loading and wave–mast interaction at the Fécamp offshore wind turbine mast using OpenFOAM-based numerical modelling.

Completed · Mar.–Sep. 2024

Research methods

Computational mechanics across model scales.

Scientific computing
ANSYS APDL · MATLAB · Python · OpenFAST · OpenFOAM · Simulink

Structural practice
ETABS · SAP2000 · CSI Bridge · AutoCAD