The numerical simulation by our flange expert Filip Wegener illustrates that the tightening sequence, in combination with gaps between the contact surfaces, can lead to a significant loss of preload. The animation clearly demonstrate that the two-stage tightening required in IEC 61400-6/AMD1 is necessary to achieve sufficient preload and that after two rounds preloading to 100% of the design preload, the losses due to this effect are negligible. Enjoy watching! 🎞️
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Show AllSea Ice Is Back in the Baltic Sea
Sea ice is not gone from the southern Baltic Sea as many have thought in the recent years. The strong 2025/2026 winter season shows that multiple offshore wind farm locations can actually be affected by sea ice, as can be seen on daily-published FMI ice charts in comparison with maps of the existing and planed…
02/2026
10 years at JBO Engineering Group
This year marks a special milestone for Dr.-Ing. Gerrit Haake, our Head of Certification and R&D, who has been with JBO Engineering Group for ten years.
Over the past decade, Gerrit has worked at the intersection of offshore wind operations, certification and research. From accompanying Germany’s first offshore wind farm over its entire lifetime…
01/2026
JBO Welcomes the Offshore Wind Investment Pact: A Necessary Step for the North Sea
Europe’s offshore wind sector is under pressure. Rising costs, complex projects and long approval processes are slowing momentum in the North Sea.
JBO therefore welcomes the Offshore Wind Investment Pact, signed at the North Sea Summit in Hamburg. It shows that governments recognise the need for coordinated action and a long term commitment to…
01/2026
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