Tim Hammer

PhD candidate Delft University of Technology

Tim Hammer is a PhD candidate on ice-induced vibrations of offshore wind turbines within the faculty of Civil Engineering and Geosciences at Delft University of Technology. He completed his Master of Science at Leibniz University in Hannover in 2019 focusing on hydraulic experiments. Starting his PhD in 2020 and moving to the Netherlands, Tim worked on the development of a real-time hybrid test setup to investigate the dynamic interaction between offshore wind turbines and floating sea ice in model-scale experiments. In 2021 Tim joined the first SHIVER test campaign at the Ice and Wave Tank of the Aalto University in Espoo, Finland. He focused on offshore wind turbine experiments with a 14-MW project offshore wind turbine, which was designed in collaboration with Siemens Gamesa Renewable Energy. In 2023 he led the second SHIVER test campaign focusing on the validation of a scaling technique for ice-induced vibrations of vertically sided structures. Tim also conducted numerical, fully-coupled simulations of offshore wind turbines under dynamic ice loading in BHawC, the in-house aeroelastic tool of Siemens Gamesa Renewable Energy, validating the implemented ice-structure interaction model, investigating numerical coupling effects, and identifying ice-induced vibration regimes that resulted in design driving bending moments along the support structure.