The aim of the present project is to reduce the cost of support structures for offshore wind turbines by minimizing their total steel mass. Basic considerations for an iterative optimization approach were presented by Zwick, Muskulus and Moe (2012), and these have been improved with a convex problem formulation and faster convergence. Simplified fatigue load assessments have been studied, and computational expenses of site-specific optimization has been reduced with a factor of 66 compared to complete analysis. This has been accomplished by using load histories from the initial design to compute correction factors for each member, which enables a single load case of 10 minutes to represent 11 load cases of 60 minutes. A jacket has been optimized with this approach, and a benchmark with the full-height lattice tower concept is presented.
|Number of pages||4|
|Publication status||Published - 2014|
|Event||10th EAWE PhD Seminar on Wind Energy in Europe - University Campus, Orleans, France|
Duration: 28 Oct 2014 → 31 Oct 2014
Conference number: 10
|Seminar||10th EAWE PhD Seminar on Wind Energy in Europe|
|Period||28/10/2014 → 31/10/2014|