This paper constitutes the numerical companion of the experimental work on vibration‐based monitoring of a small‐scale wind turbine (WT) blade. In this second part, a numerical benchmark is established for condition assessment of a Windspot 3.5‐kW WT blade. The aim is to supplement the companion experimental work with a physical model exposed to diverse operational conditions, loading scenarios, and damage patterns that are not easily explorable and controllable in the laboratory. To this end, a finite element (FE) model of the considered blade is developed and subjected to a number of artificial damage scenarios, which are dynamically tested under both environmental and operational variability. The paper offers a detailed description of the numerical benchmark and the underlying assumptions, as well as the spectrum of operational conditions, the measured quantities, and the wind load model. Finally, we provide an overview and demonstration of the stand‐alone application for time history analysis and generation of synthetic vibration data, which is made available via an open‐access code in Sonkyo‐Benchmark repository.

中文翻译：

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在变化的气候和运行条件下对小型风力涡轮机叶片进行基于振动的监测。第二部分：数字基准

本文构成了小型风力涡轮机叶片振动监测实验工作的数值伴侣。在第二部分中，建立了用于评估Windspot 3.5 kW WT叶片状态评估的数字基准。目的是通过暴露于各种操作条件，负载情况和在实验室中不易发现和控制的损坏模式的物理模型来补充伴随的实验工作。为此，开发了所考虑叶片的有限元（FE）模型，并对其进行了许多人为损坏的方案，并在环境和操作可变性下对其进行了动态测试。本文提供了数字基准和基本假设以及运行条件范围的详细说明，测得的数量和风荷载模型。最后，我们提供了用于时程分析和合成振动数据生成的独立应用程序的概述和演示，可通过Sonkyo-Benchmark存储库中的开放访问代码获得该应用程序。