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Multibody dynamic modelling of a direct wind turbine drive train

机译：直接风力涡轮机传动系的多体动态建模

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摘要

Wind turbines normally have a long operational lifetime and experience a wide range of operating conditions. A representative set of these conditions is considered as part of a design process, as codified in standards. However, operational experience shows that failures occur more frequently than expected, the costlier of these including failures in the main bearings and gearbox. As modern turbines are equipped with sophisticated online systems, an important task is to evaluate the drive train dynamics from online measurement data. In particular, internal forces leading to fatigue can only be determined indirectly from other locations' sensors. In this contribution, a direct wind turbine drive train is modelled using the floating frame of reference formulation for a flexible multibody dynamics system. The purpose is to evaluate drive train response based on blade root forces and bedplate motions. The dynamic response is evaluated in terms of main shaft deformation and main bearing forces under different wind conditions. The model was found to correspond well to a commercial wind turbine system simulation software (ViDyn).
机译：风力涡轮机通常具有长期的操作寿命并体验各种操作条件。这些条件的代表性集被认为是设计过程的一部分，如标准编纂。然而，操作经验表明，失败发生的比预期更频繁，其中的肋骨包括主轴承和变速箱中的故障。由于现代涡轮机配备了复杂的在线系统，重要的任务是评估来自在线测量数据的传动系动态。特别地，导致疲劳的内部力只能由其他位置的传感器间接地确定。在该贡献中，使用用于柔性多体动力系统的浮动框架的浮动框架进行建模直接风力涡轮机传动系。目的是根据叶片根部力和底板运动来评估驱动火车响应。在不同风条件下的主轴变形和主轴承方面评估动态响应。发现该模型对应于商业风力涡轮机系统仿真软件（Vidyn）。

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