Recent Advances in Vibration-Based Structural Health Monitoring

A special issue of Vibration (ISSN 2571-631X).

Deadline for manuscript submissions: closed (29 April 2022) | Viewed by 3861

Special Issue Editor


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Guest Editor
INSA Centre Val de Loire, Laboratoire de Mécanique G. LaMé - CEROC, Blois, France
Interests: mechanical vibration analysis and structural dynamics; experimental modal identification; structure health monitoring; machining vibrations; cutting tool wear monitoring; signal processing; vibratory fatigue and characterization mechanics

Special Issue Information

Dear Colleagues,

This Special Issue will present recent advances made in vibration-based structural health monitoring (VBSHM) using dynamic responses of the structure to an excitation.

In fact, vibration-based approaches are suitable for global health monitoring of structures even without any a priori knowledge of and accessibility to the damage location. Papers on parameter and feature estimation based on linear structural behavior, SHM taking into account the nonlinear structural behavior, sensor layout and data collection strategies, integration of SHM with vibration control of structures, wireless monitoring, and applications or case studies are expected.

Dr. Roger Serra
Guest Editor

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Published Papers (1 paper)

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Research

21 pages, 3468 KiB  
Article
Sensitivity and Efficiency of the Frequency Shift Coefficient Based on the Damage Identification Algorithm: Modeling Uncertainty on Natural Frequencies
by Anurag Dubey, Vivien Denis and Roger Serra
Vibration 2022, 5(1), 59-79; https://doi.org/10.3390/vibration5010003 - 16 Jan 2022
Cited by 7 | Viewed by 3073
Abstract
Health surveillance in industries is an important prospect to ensure safety and prevent sudden collapses. Vibration Based Structure Health Monitoring (VBSHM) is being used continuously for structures and machine diagnostics in industry. Changes in natural frequencies are frequently used as an input parameter [...] Read more.
Health surveillance in industries is an important prospect to ensure safety and prevent sudden collapses. Vibration Based Structure Health Monitoring (VBSHM) is being used continuously for structures and machine diagnostics in industry. Changes in natural frequencies are frequently used as an input parameter for VBSHM. In this paper, the frequency shift coefficient (FSC) is used for the assessment of various numerical damaged cases. An FSC-based algorithm is employed in order to estimate the positions and severity of damages using only the natural frequencies of healthy and unknown (damaged) structures. The study focuses on cantilever beams. By considering the minimization of FSC, damage positions and severity are obtained. Artificially damaged cases are assessed by changes in its positions, the number of damages and the size of damages along with the various parts of the cantilever beam. The study is further investigated by considering the effect of uncertainty on natural frequencies (0.1%, 0.2% and 0.3%) in damaged cases, and the algorithm is used to estimate the position and severity of the damage. The outcomes and efficiency of the proposed FSC based method are evaluated in order to locate and quantify damages. The efficiency of the algorithm is demonstrated by locating and quantifying double damages in a real cantilever steel beam using vibration measurements. Full article
(This article belongs to the Special Issue Recent Advances in Vibration-Based Structural Health Monitoring)
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