ECN publication
Improved Aeroelastic Simulations using SIMPACK [D6]
Published by: Publication date:
ECN Wind Energy 27-7-2015
ECN report number: Document type:
ECN-E--15-037 ECN publication
Number of pages: Full text:
34 Download PDF  

Wind turbine load simulations are currently mostly performed using tools that were specifically designed for that purpose. One of the draw backs of those tools is the inability to add more detail to the structural model when required. For example, there are very few degrees of freedom available in a drive train while one may need more for their simulation. For this reason general purpose multi body simulations could be a good way to resolve these issues. The aerodynamic forces can be added by coupling to the ECN Aero-Module. The calculation times for multi body codes will be larger in general than for the specific wind turbine tools. Especially when one increases the amount of detail, one can run into issues with the calculation time. Using a more detailed aerodynamic approach can also hamper the use. Therefore simulations were performed to get an indication the effect of some of the possible increases in model complexity. The effect of IPC on the aerodynamic loads using different aerodynamic models (BEM and AWSM) has been investigated in this report. The effect of the aerodynamic model impacts the simulations, but the increase in the calculation time is perhaps more significant. A user should try to predict the most critical cases that show the largest deviations when comparing BEM to AWSM, and use AWSM for those cases.

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