Construction and installation

Sea ice loads

• Jussila, V., Heinonen, J., (2012). Comparison of Ice-induced Vibrations on a Conical and a Cylindrical Offshore Wind Turbine Substructure, 21st IAHR International Symposium on Ice, Dalian, China, June 11-15, 2012.
• Tikanmäki, M., Heinonen, J., Makkonen, L., (2012). Estimation of Local Ice Conditions in the Baltic Sea for Offshore Wind Turbine Design, 21st IAHR International Symposium on Ice, Dalian, China, June 11-15, 2012.
• Heinonen, J.; Rissanen, S. FAST simulations of drifting sea ice loads on offshore wind turbine support structures, EWEA Annual Conference and Exhibition, EWEA 2015, 17 - 20 November 2015, Paris, France, Proceedings. European Wind Energy Association (EWEA) (2015), 10 p. http://www.ewea.org/annual2015/conference/allposters/PO237.pdf
• Rissanen S. Simulations of Drifting Sea Ice Loads on Offshore Wind Turbine, WinterWind conference, Åre, 2016

​Case Peikko: Wind Turbine rock anchor foundation

Challenge
Experimental data is often mandatory to verify the conformity of design methods for new structural solutions. Long-term monitoring of a real structure is often the most impressive way for that purpose. Peikko has developed a new type of rock anchor foundation for modern +3MW wind turbines and they needed monitoring of its structural behavior.

VTT unique solution
Combining different expertize in-house, VTT was able to deliver a complete measurement and data gathering solution that enabled the successful validation of the new foundation design. The design of monitoring and execution of instrumentation was done by VTT in co-operation with Ramboll Finland Oy and Peikko Group Corporation.