用气动压力数据实时检测风机叶片损伤,还能解释原因。
Towards Interpretable Damage Detection based on Aerodynamic Pressure Measurements

- 结合气动压力与物理规律,用可解释模型识别损伤
- 在湍流和变工况下实现损伤检测与严重程度分类
- 适合需要透明、可靠监测的风力发电系统
现代大型风力机叶片柔性增加,亟需高效可靠的结构监测方案。本文提出利用Aerosense这一新型非侵入式低成本传感系统获取气动压力数据。此前研究[Franz et al., 2025]基于安装在垂直振动悬臂梁上的NACA 633418机翼开展实验,通过控制锯切方式逐步引入结构损伤,并在不同来流条件下记录气动压力分布。基于该数据集,构建卷积神经网络仅使用气动压力信号即可检测损伤并分类严重程度。结果表明,该方法可在轻微湍流及运行条件变化下实现弹性梁结构损伤的实时检测与量化。为克服纯黑箱模型局限,本研究进一步融合物理机理与可解释机器学习方法,揭示损伤如何影响动态响应与气动压力场,从而提升数据驱动监测的透明性、鲁棒性与物理一致性。
原文摘要 · Abstract (English)
The increasing flexibility of modern large wind turbine blades necessitates cost-efficient and reliable structural monitoring solutions. For this purpose, we propose to use aerodynamic pressure measurements obtained via Aerosense, a novel, non-intrusive and economical sensing system. In former work [Franz et al., 2025], we investigated the potential of aerodynamic pressure measurements for structural damage detection on elastic and aerodynamically loaded structures. An experimental campaign was conducted on a NACA 633418 airfoil mounted on a vertically vibrating cantilever beam within an open wind tunnel. Structural damage was introduced progressively through controlled saw cuts near the beam support. Aerodynamic pressure distributions were recorded under varying inflow conditions and structural states. Based on this data set, we developed a convolutional neural network to detect structural damage and classify its severity using only aerodynamic pressure signals. The results demonstrate that pressure measurements can effectively enable real-time detection and quantification of damage in elastic, beam-like structures subjected to mildly turbulent flow and varying operational conditions. Recognizing the limitations of pure black-box classification, in this study, we further incorporate physics-based insights and explainable machine learning methods to interpret how structural damage influences both the dynamic response and the aerodynamic pressure field. This leads to an enhanced damage detection pipeline, aiming to improve transparency, robustness, and physical consistency in data-driven monitoring of elastic, aerodynamically loaded structures.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。