During the MBS Tech Days 2021, Martin Cardaun from the RWTH Aachen — Center for Wind Power Drives (CWD) held a presentation called "Nonlinear Model Order Reduction for Wind Turbine Rotorblades".

In his presentation, Martin talks about how increasing the power output of modern wind turbines leads to higher towers and longer rotor blades, resulting in more flexible structures. As these components increase in size, nonlinear structural behavior becomes increasingly important. Therefore, accurate multi-body simulation models that consider nonlinear effects are needed. This presentation presents the workflow and usage of new Simpack functionality for nonlinear model order reduction. Several tests are done for static and dynamic load cases and full system simulations with an exemplary rotor blade model. This presentation will show that nonlinear flexible bodies in Simpack agree with comparative calculations in finite element software.

Martin Cardaun studied Mechanical Engineering, focusing on power engineering, at the RWTH Aachen University from 2010 to 2016. In 2016 Martin switched to the master's program of Power Engineering, specializing in regenerative energy technologies. Martin graduated in 2018 successfully with an M.Sc.

Since June 2018, Martin has worked as a research assistant at the Chair for Wind Power Drives at the RWT Aachen. His primary focus is on the MBS simulation analysis of gearless wind turbines' overall dynamics and acoustics. Since 2020, Martin has been the Team Lead of the Plant Design at the Chair for Wind Power Drives group.

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