Vibration Response-Based Damage Detection

Limongelli, Maria Pina; Manoach, Emil; Quqa, Said; Giordano, Pier Francesco; Bhowmik, Basuraj; Pakrashi, Vikram; Cigada, Alfredo

doi:10.1007/978-3-030-72192-3_6

Cited by 23 publications

(11 citation statements)

References 169 publications

(209 reference statements)

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“…These dynamic parameters are used as a so-called passport for estimation structural health monitoring of the structure during its operation. The deviation of the current modal parameters from the initial ones indicates the origination of damage [9,10]. To date, many classical [11,12] and modern works have been devoted to the study of shell vibrations [13,14].…”

Section: Introductionmentioning

confidence: 99%

The modal analysis of laminated composite cylinders under axial tension loading in ANSYS

Kovalovs,

Chate,

Kulakov

2024

MATEC Web Conf.

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Natural frequencies and vibration modes of laminated composite cylinders were calculated under axial tension loading by the finite element method using ANSYS Mechanical software package. Two types of axial tensile load were modelled: a suspended weight and a static axial load in the zone of weight attachment into the cylinder. The features of the modal analysis of a prestressed system depending on the type of applied tensile load were analyzed. The numerical results obtained were compared and the possible reasons for their discrepancy were explained.

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Section: Introductionmentioning

confidence: 99%

The modal analysis of laminated composite cylinders under axial tension loading in ANSYS

Kovalovs,

Chate,

Kulakov

2024

MATEC Web Conf.

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“…Mostly, vibration-based fault detection methods are increasingly being used for operating objects [ 5 ] and for composite structures [ 6 ]. For permanent monitoring, modal analysis techniques may take prime position, as they are based on direct relations between the mechanical and modal properties of structures [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Health Monitoring of Serial Structures Applying Piezoelectric Film Sensors and Modal Passport

Mironov¹,

Safonovs

Mironovs

et al. 2023

Sensors

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Health monitoring of critical structures, that form parts of serial operating objects, is a pressing task. The Operational Modal Analysis (OMA) techniques could be the optimal solution. An inexpensive measurement system, such as the OMA, uses a lot of sensors for structural response assessment. The health monitoring of serial structures has to also consider possible deviations between samples. A solution providing the OMA application includes the compact measurement system based on piezoelectric film sensors and modal passport (MP) techniques. For validation of the proposed approach, a series of five similar composite cylinders, with a network of piezoelectric film sensors, was used. Applying modal tests on the specimens, and using OMA with MP methods, the set of typical modal parameters was determined and analyzed. The results of the study confirmed the feasibility of the sensor network and its applicability for structural health monitoring of serial samples using OMA methods. The proven effectiveness of OMA/MP techniques, combined with a sensor network, provides a prototype of intelligent sensor technology, which can be used for health monitoring of structures, including those that are part of an operating facility.

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“…Vibration-based approaches are among the most commonly adopted approaches, as reported by many exhaustive review papers in the literature (e.g., [ 3 , 4 , 5 , 6 , 7 ]). According to these approaches, damage sensitive features are extracted from the dynamic response of the monitored structure by adopting, e.g., time series models [ 8 , 9 , 10 ] or modal analysis [ 11 ], relying on a simple assumption: damage manifests itself as a change in structural properties (e.g., a change of mass, stiffness, constraint characteristics or structural connectivity) that reflects in changes of modal parameters (i.e., eigenfrequencies, mode shapes and damping coefficients) [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Short-Training Damage Detection Method for Axially Loaded Beams Subject to Seasonal Thermal Variations

Berardengo

Lucà

Vanali

et al. 2023

Sensors

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Vibration-based damage features are widely adopted in the field of structural health monitoring (SHM), and particularly in the monitoring of axially loaded beams, due to their high sensitivity to damage-related changes in structural properties. However, changes in environmental and operating conditions often cause damage feature variations which can mask any possible change due to damage, thus strongly affecting the effectiveness of the monitoring strategy. Most of the approaches proposed to tackle this problem rely on the availability of a wide training dataset, accounting for the most part of the damage feature variability due to environmental and operating conditions. These approaches are reliable when a complete training set is available, and this represents a significant limitation in applications where only a short training set can be used. This often occurs when SHM systems aim at monitoring the health state of an already existing and possibly already damaged structure (e.g., tie-rods in historical buildings), or for systems which can undergo rapid deterioration. To overcome this limit, this work proposes a new damage index not affected by environmental conditions and able to properly detect system damages, even in case of short training set. The proposed index is based on the principal component analysis (PCA) of vibration-based damage features. PCA is shown to allow for a simple filtering procedure of the operating and environmental effects on the damage feature, thus avoiding any dependence on the extent of the training set. The proposed index effectiveness is shown through both simulated and experimental case studies related to an axially loaded beam-like structure, and it is compared with a Mahalanobis square distance-based index, as a reference. The obtained results highlight the capability of the proposed index in filtering out the temperature effects on a multivariate damage feature composed of eigenfrequencies, in case of both short and long training set. Moreover, the proposed PCA-based strategy is shown to outperform the benchmark one, both in terms of temperature dependency and damage sensitivity.

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Vibration Response-Based Damage Detection

Cited by 23 publications

References 169 publications

The modal analysis of laminated composite cylinders under axial tension loading in ANSYS

The modal analysis of laminated composite cylinders under axial tension loading in ANSYS

Health Monitoring of Serial Structures Applying Piezoelectric Film Sensors and Modal Passport

Short-Training Damage Detection Method for Axially Loaded Beams Subject to Seasonal Thermal Variations

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