The design of a medium‐speed drivetrain for the Technical University of Denmark (DTU) 10‐MW reference offshore wind turbine is presented. A four‐point support drivetrain layout that is equipped with a gearbox with two planetary stages and one parallel stage is proposed. Then, the drivetrain components are designed based on design loads and criteria that are recommended in relevant international standards. Finally, an optimized drivetrain model is obtained via an iterative design process that minimizes the weight and volume. A high‐fidelity numerical model is established via the multibody system approach. Then, the developed drivetrain model is compared with the simplified model that was proposed by DTU, and the two models agree well. In addition, a drivetrain resonance evaluation is conducted based on the Campbell diagrams and the modal energy distribution. Detailed parameters for the drivetrain design and dynamic modelling are provided to support the reproduction of the drivetrain model. A decoupled approach, which consists of global aero‐hydro‐servo‐elastic analysis and local drivetrain analysis, is used to determine the drivetrain dynamic response. The 20‐year fatigue damages of gears and bearings are calculated based on the stress or load duration distributions, the Palmgren‐Miner linear accumulative damage hypothesis, and long‐term environmental condition distributions. Then, an inspection priority map is established based on the failure ranking of the drivetrain components, which supports drivetrain inspection and maintenance assessment and further model optimization. The detailed modelling of the baseline drivetrain model provides a basis for benchmark studies and support for future research on multimegawatt offshore wind turbines.

中文翻译：

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关于用于海上风力涡轮机的10兆瓦中速传动系统的设计，建模和分析

介绍了丹麦技术大学（DTU）10兆瓦参考海上风机的中速传动系统设计。提出了一种四点支撑的传动系统布局，该布局配备了具有两个行星齿轮级和一个平行齿轮级的变速箱。然后，根据相关国际标准中建议的设计负荷和标准来设计动力传动系统组件。最终，通过最小化重量和体积的迭代设计过程获得了优化的传动系统模型。通过多体系统方法建立了高保真数值模型。然后，将开发的传动系统模型与DTU提出的简化模型进行比较，这两个模型非常吻合。此外，基于坎贝尔图和模态能量分布进行动力传动系统共振评估。提供了用于动力传动系统设计和动态建模的详细参数，以支持动力传动系统模型的再现。确定全球动力传动系统动态响应的解耦方法是由全球航空-水力-伺服-弹性分析和局部动力总成分析组成。齿轮和轴承的20年疲劳损伤是根据应力或载荷持续时间分布，Palmgren-Miner线性累积损伤假设以及长期环境条件分布来计算的。然后，根据传动系统组件的故障等级建立检查优先级图，以支持传动系统检查和维护评估以及进一步的模型优化。