Ultra-Fast Analysis of Offshore Wind Turbine Support Structures using Impulse Based Substructuring and Massively Parallel Processors

Schafhirt, Sebastian (Norwegian University of Science and Technology) | Verkaik, Niels (Keppel Verolme BV) | Salman, Yilmaz (Keppel Verolme BV) | Muskulus, Michael (Norwegian University of Science and Technology)

OnePetro 

The most accurate analysis of an offshore wind turbine is still a timeconsuming and computational demanding simulation in the timedomain. In order to accelerate the analysis, a substructuring technique, which is based on the principle of superposition of impulse responses was combined with the power of modern general purpose graphics processing units. This gives the ability to perform a simplified analysis of an offshore wind turbine with complex lattice support structure forty times faster than specialized commercial available state-of-the-art software is capable of running it, without a loss in accuracy. Implications for research and practice are discussed.