On the application of population-based structural health monitoring in aerospace engineering.
On the application of population-based structural health monitoring in aerospace engineering.
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DOI：
10.3389/frobt.2022.840058
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发表时间：
2022
影响因子：
3.4
通讯作者：
Worden, Keith
中科院分区：
文献类型：
--
作者：
Brennan, Daniel S;Gosliga, Julian;Gardner, Paul;Mills, Robin S;Worden, Keith
到目前为止，广泛采用基于数据的结构健康监测的主要障碍之一是缺乏感兴趣的(主要是高价值的)结构的损伤状态数据。为了解决这个问题，已经开发了一种在结构之间共享数据和模型的方法--基于人口的结构健康监测(PBSHM)。PBSHM的工作原理是，如果结构的总体足够相似，或者共享可以被认为相似的部分，那么数据和模型可以在它们之间共享，以用于诊断推理。因此，PBSHM方法依赖于两个关键组成部分：第一，确定结构是否足够相似，以便成功地转移诊断；这是通过使用结构的抽象表示来实现的。其次，利用机器学习技术在结构之间有效地传递信息，以改进整个种群的损伤检测和分类。尽管PBSHM被设想为处理大型和一般类别的结构，但到目前为止提出的许多详细发展都涉及桥梁；本文的目的是在航空航天背景下提供类似的详细讨论。这里的概述将检查飞机部件之间的数据传输，并说明如何构建完整飞机的抽象表示。
One of the major obstacles to the widespread uptake of data-based Structural Health Monitoring so far, has been the lack of damage-state data for the (mostly high-value) structures of interest. To address this issue, a methodology for sharing data and models between structures has been developed–Population-Based Structural Health Monitoring (PBSHM). PBSHM works on the principle that, if populations of structures are sufficiently similar, or share sections which can be considered similar, then data and models can be shared between them for use in diagnostic inference. The PBSHM methodology therefore relies on two key components: firstly, identifying whether structures are sufficiently similar for successful transfer of diagnostics; this is achieved by the use of an abstract representation of structures. Secondly, machine learning techniques are exploited to effectively transfer information between the structures in a way that improves damage detection and classification across the whole population. Although PBSHM has been conceived to deal with large and general classes of structures, much of the detailed developments presented so far have concerned bridges; the aim of this paper is to provide similarly detailed discussions in the aerospace context. The overview here will examine data transfer between aircraft components, as well as illustrating how one might construct an abstract representation of a full aircraft.