期刊
STRUCTURAL CONTROL & HEALTH MONITORING
卷 2023, 期 -, 页码 -出版社
JOHN WILEY & SONS LTD
DOI: 10.1155/2023/1891062
关键词
-
Data-driven structural health monitoring requires precise estimates of the target system behavior. This paper proposes using the Loewner framework, an input-output system identification technique based on rational interpolation, to estimate the modal properties of mechanical systems. The Loewner framework is validated on numerical and experimental datasets and achieves promising results in terms of accuracy and reliability.
Data-driven structural health monitoring (SHM) requires precise estimates of the target system behaviour. In this sense, SHM by means of modal parameters is strictly linked to system identification (SI). However, existing frequency-domain SI techniques have several theoretical and practical drawbacks. This paper proposes using an input-output system identification technique based on rational interpolation, known as the Loewner framework (LF), to estimate the modal properties of mechanical systems. Pioneeringly, the Loewner framework mode shapes and natural frequencies estimated by LF are then applied as damage-sensitive features for damage detection. To assess its capability, the Loewner framework is validated on both numerical and experimental datasets and compared to established system identification techniques. Promising results are achieved in terms of accuracy and reliability.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据