Multi-Body-Systems (MBS) are widely used for this task. These models are used for the identification of eigenfrequencies and the resonance behaviour of the drive train. The purpose of the analysis is the investigation of load-increasing resonances in the main drive train components. These resonance phenomena are usually not represented in the global simulation model for the determination of the design loads. The requirements for the certification of wind turbines according to DNV's Renewables Certification are described in the Guideline for the Certification of Wind Turbines. The latest revision of this Guideline (GL 2012) was issued in December 2012. The paper covers the requirements according GL Guideline 2010 and GL Guideline 2012.
Certification requirements for the drive train dynamics of wind turbines according to guideline GL 2010 and GL 2012
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