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 AllJBO at the Offshore Wind Poland 2025
Poland is pushing ahead with the development of offshore wind at impressive speed. The projects in the Baltic Sea show just how much potential this region holds.
At JBO Engineering Group, we combine international offshore experience with strong technical expertise. Events like Offshore Wind Poland are a great opportunity to connect with industry professionals,…
11/2025

JBO Engineering Group at the Wind Study Tour with the Vietnamese government delegation
Our Business Development Manager, Francesco Ghillani, represented JBO at the event organized by Global Wind Energy Council (GWEC) and the Erneuerbare Energien Hamburg (EEHH) Cluster in Hamburg.
Vietnam has set ambitious offshore wind targets of up to 139 GW by 2050, and JBO brings the right experience to the table: engineering and design of…
11/2025

Another major milestone achieved for the Nordseecluster project!
All turbine foundations and secondary steel structures for Nordseecluster A have been successfully installed. After full commissioning in early 2027, Nordseecluster A will have a total capacity of 660 MW. The second expansion stage, Nordseecluster B, will contribute an additional 900 MW in 2029.
We are proud to have contributed to this important step…
11/2025

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