The H2020 Network A4F (AEOLUS4FUTURE) met for its mid-term report in Brussels 27 & 28.02.17. Details about the consortium members, their activities during the first 2 years and the outcomes can be found at: http://www.aeolus4future.eu/Partners
SHOWTIME project had recently its 4th meeting at the Luleå Technical University, Luleå, Sweden. SHOWTIME consortium members come from the University of Coimbra, Luleå Technical University, Technical University of Aachen, University of Birmingham, SIDENOR, Steel Construction Institute, MARTIFER, FRIEDBERG Produktionsgesellschaft GmbH under the coordination of Professor Carlos Rebelo. SHOWTIME works on the development of a steel hybrid solution for onshore wind turbine towers using a lattice structure for the lower part of the tower and a tubular upper one. This design is targeted at tall onshore applications (hub height 120 – 220 meters), required by increasingly powerful wind turbines or in situations where wind shear profile is clearly benefiting higher turbines.
The work focuses on the erection process, in which the lattice part of the tower is used as support for the installation of the upper tubular one of the tower and the turbine; the use of a new type of steel bolts and high strength steel grades for critical parts of the tower (e.g. the transition part between the lattice and tubular part); the optimization of design and construction of a low maintenance truss structure for increasing design life; use of high strength steel grades up to 690 MPa for the transition segment; the performance of a new type of cross section for lattice members and the respective bolted connections; and, the development of design recommendations for easier certification of steel hybrid towers. Design rules will be at the end drafted and made available to CEN (CEN/TC 250/ SC3 Eurocode 3 - Design of steel structures).
On the 13th January Rui Matos presented his Doctoral Thesis on STEEL TOWERS FOR WIND TURBINES to the University of Coimbra, Portugal. The work presented in this thesis has been developed in the scope of two European projects (HISTWIN and HISTWIN2) coordinated by Prof. Milan Veljkovic, where the issues related to new type of connections in tubular towers, allowing for modularization and easier transportation, and to the improvement of foundations using micropiles. The WINERCOST MC members Prof. Charalampos Baniotopoulos and Prof. Carlos Rebelo integrated the Examination Board together with the president of the Board Prof. Luis Simões da Silva and other three experts in the thematic of steel structures and geotechnical design, Prof. Matos Fernandes from the University of Porto and Prof. Luis Lemos and Prof. Rui Simões from the University of Coimbra.