The extensive requirements for the reliable operation of wind turbines make the design and the dimensioning of wind turbine gearboxes an interdisciplinary challenge. In the meantime, the possibilities of the dynamic simulation are already in use in an early stage of the development process. The natural frequencies can be determined and compared to possible excitations through simulation models. The simulation of the operation of the wind turbine under different wind speeds allows the calculation of component loads as a basis for the further design process.
The presentation concentrates on the challenges of dimensioning and the design of gearboxes for wind turbines and the associated dynamic properties of the complete system on the example of NREL's 5 MW reference wind turbine. The available simulation model is used to determine the influence of the model's level of detail on the resulting loads for the bearings and the occurring load distribution in the gearing of the first planetary gear stage. The available results offer improved possibilities to design drivetrain components and understand dynamic effects during the operation.
Live Recording from the 5th Wind & Drivetrain Conference 2022
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Presenter Bio
Dr.-Ing. Thomas Rosenlöcher studied mechanical engineering at the Technische Universität Dresden, specialising in drive technology, and graduated as a graduate engineer in December 2004. During his studies he worked for more than one and a half years at the BMW Group in Munich and Rosslyn in South Africa in the field of drive technology for motorbikes and motor vehicles. After his diploma thesis, he was a research assistant at the Chair of Machine Elements and worked on the analysis of dynamic drivetrain behaviour for multi-megawatt drivetrains using the multibody system and the finite element method. He obtained his PhD in June 2012 with his thesis on "Analysis of the Dynamic Drive Train Behaviour of Multi-Megawatt Drive Trains using the Multibody System and Finite Element Method." Since 2014, he has been a chief engineer at the Chair of Machine Elements and is involved in teaching as well as research in the area of design and dimensioning of large drives with special attention to system dynamics.
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