基于导波的结构健康监测的线性无基线技术评估

IF 3.8 2区 物理与天体物理 Q1 ACOUSTICS
Hongmin Zhu, Zahra Sharif Khodaei, Ferri M. H. Aliabadi
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引用次数: 0

摘要

本文对应用于基于导波的结构健康监测(GWSHM)的主要线性无基线技术进行了全面的批判性评估和实验比较。本文广泛研究了最流行的线性无基线技术,即时间反演 (TR)、虚拟时间反演 (VTR)、瞬时基线 (IB) 和基于互易的方法。通过对每种技术的原理、优势和局限性的详细讨论,可以全面了解这些技术的能力和挑战。影响无基线技术在损伤检测和定位方面性能的关键因素是本文的重点。这些因素包括不同的环境条件,如温度波动、几何和结构复杂性以及不同的损伤情况。报告中的研究对 VTR、IB 和基于互易性的技术进行了实验比较,这些技术与复合材料的挑战性情况相关,考虑了单个和双个裸露可见损伤 (BVID) 情况、温度变化、边界反射和结构复杂性(如加强筋)。结果表明,所研究的无基线技术能够识别和定位损伤,尽管能力有所不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Appraisal of linear baseline-free techniques for guided wave based structural health monitoring

This paper offers a comprehensive critical appraisal and experimental comparison of leading linear baseline-free techniques applied in guided wave-based structural health monitoring (GWSHM). The paper extensively examines the most popular linear baseline-free techniques, namely Time Reversal (TR), Virtual Time Reversal (VTR), Instantaneous Baseline (IB), and reciprocity-based methods. Detailed discussions on the principles, strengths, and limitations of each technique provide a thorough understanding of their capabilities and challenges. Critical factors affecting performance that influence the performance of baseline-free techniques in damage detection and localization is the main focus of the paper. These factors encompass varying environmental conditions such as temperature fluctuations, geometric and structural complexities, and diverse damage scenarios.

The research reported conducts experimental comparisons among VTR, IB, and reciprocity-based techniques as related to the challenging case of composite materials, considering single and dual Barely Visible Damage (BVID) scenarios, temperature variations, boundary reflections, and structural complexities like stiffeners. The results demonstrate that the investigated baseline-free techniques are capable of identifying and localizing damages, albeit with differing capabilities.

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来源期刊
Ultrasonics
Ultrasonics 医学-核医学
CiteScore
7.60
自引率
19.00%
发文量
186
审稿时长
3.9 months
期刊介绍: Ultrasonics is the only internationally established journal which covers the entire field of ultrasound research and technology and all its many applications. Ultrasonics contains a variety of sections to keep readers fully informed and up-to-date on the whole spectrum of research and development throughout the world. Ultrasonics publishes papers of exceptional quality and of relevance to both academia and industry. Manuscripts in which ultrasonics is a central issue and not simply an incidental tool or minor issue, are welcomed. As well as top quality original research papers and review articles by world renowned experts, Ultrasonics also regularly features short communications, a calendar of forthcoming events and special issues dedicated to topical subjects.
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