New Sailing Ship "Alexander von Humboldt II"

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Sailing Ship

It is the first new construction of a German tall ship after the construction of the "Gorch Fock", the training ship of the Navy. On board the "Alex II", passengers can enjoy a one‑day trip or a cruise lasting several days, or learn sailing on special training tours.

HB Hunte Engineering GmbH was responsible for the construction of the new ship. The German company Marine Engineering Wollert GmbH calculated the rigging (masts as well as ropes fixing the masts) and the strength of the hull. Both have been Dlubal customers for years and use RFEM for their analyses.

Structural Analysis

In addition to typical finite element calculations of highly stressed systems such as mooring, anchor, and davit units, the rigging forces were analyzed in detail. A comprehensive matrix of calculation load cases was created with a multitude of sail-plans for the different wind velocities and directions.

The nonlinear FE calculations were compared with the formula-based guidelines for design and layout given by Germanischer Lloyd. In this way, a coherent safety concept for the masts and spars, as well as their rigging by shrouds and stays, was reached.

”The application of wind forces in particular required complex knowledge of the theoretical and practical backgrounds of traditional sailing ships,“ says Jürgen Wollert from Marine Engineering Wollert GmbH.