Energy

• Manufacturing of components
  • Innovative welding processes for towers
  • Assembly optimization of manufactured parts
  • Influence of machining of gearbox parts
  • Influence of welding on distortions, residual stresses, joint properties and weldability
  • Machining of large size parts
  • Influence of welding on crack propagation in nuclear vessel components 
  • Heat treatments after forming
• Structural design analysis and optimization
  • Design and optimization of tower, main-frame, hub, blades: shape and materials
  • All types of simulations: linear and non-linear static, dynamic (impact, vibration), multi-physics (thermal-mechanical, thermal-chemical-mechanical)
  • Design and analysis of test structures and test samples / technical demonstrators
  • Expertise in simulation of fastened and adhesively bonded structures (design and modeling, including hybrid joining)
• Cost performance tradeoffs
• Performance requirements with low cost objectives starting in the early design phase
• Process design, modeling and simulation for composite parts
• Thermal and chemical shrinkage of T, Z, I, L, Omega shaped profiles, double curved stiffened structures, from both open and closed mold processing routes
• Thermal – mechanical simulation and optimization of molds (heating power, thermal map, etc.)
• Mold compensation & experimental characterization
• Prediction of the local fibre architecture / fibre orientation, volume fraction from simulations of manufacturing (draping, braiding, etc.)
• Global simulation of machining (hole drilling, trimming, …) of composite parts, prediction of the final shape, characterization of local delamination and experimental validation
• Structural integrity and damage tolerance analysis
  • Analysis of the overall load carrying capacity in the presence of defects
  • Analysis of the stability of manufacturing defects or detected cracks 
  • Fatigue crack propagation in metallic structures, prediction of the service life
  • Cracks and defects analyses and link with the NDI and SHM
  • Failure analysis of composite structures (ply failure, delamination) under static and/or dynamic loading, coupled or not with thermal stress, as part of the structural integrity assessment
• Large scale structural analysis on HPC infrastructure
  • Up to 50MDOFS FE simulations with material and geometrical non-linearities, macro-elements, bushings, contacts, composite shells or volumic shells
• CFD-based analysis
  • Multi-physics flow problems around complex geometries (100+ MDOFs) with Argo (ALE finite volume/element second-order solver) 
  • RANS, DES & LES turbulence modeling for CFD simulations around blades, wind turbine tower, wind farm, ... 
  • Fluid-structure interaction problems based on the strong coupling of CFD and FE solvers 
  • Aero-acoustics problems based on the coupling of CFD and acoustic solvers 
  • Shape optimization of the blade design using a dedicated optimization software based on Minamo