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View article: Domain-Adaptive Graph Attention Semi-Supervised Network for Temperature-Resilient SHM of Composite Plates
Domain-Adaptive Graph Attention Semi-Supervised Network for Temperature-Resilient SHM of Composite Plates Open
This study introduces GAT-CAMDA, a novel framework for the structural health monitoring (SHM) of composite materials under temperature-induced variability, leveraging the powerful feature extraction capabilities of Graph Attention Networks…
View article: WaveCORAL-DCCA: A Scalable Solution for Rotor Fault Diagnosis Across Operational Variabilities
WaveCORAL-DCCA: A Scalable Solution for Rotor Fault Diagnosis Across Operational Variabilities Open
This paper presents WaveCORAL-DCCA, an unsupervised domain adaptation (UDA) framework specifically developed to address data distribution shifts and operational variabilities (OVs) in rotor fault diagnosis. The framework introduces the nov…
View article: Rotor system fault detection utilizing semi-supervised and unsupervised machine learning
Rotor system fault detection utilizing semi-supervised and unsupervised machine learning Open
Detecting multiple simultaneous faults in rotor systems is challenging, especially when labelled data is limited. This paper presents a novel framework combining unsupervised and semi-supervised machine learning to enhance fault diagnosis …
View article: Preliminary Design of a SMA Bending Vortex Generator
Preliminary Design of a SMA Bending Vortex Generator Open
The paper introduces the preliminary activities carried out within the RADAR project (ContRollo Attivo Del flusso AeRdinamico, in Italian, or Active Control of the Aerodynamic Flow), funded by the (Italian) Aerospace Research Program (PROR…
View article: Predicting the Residual Life of Spur Gears Using the SED Method
Predicting the Residual Life of Spur Gears Using the SED Method Open
Ensuring sustainability in the industrial sector is a global priority, encompassing environmental, economic, and social dimensions. Achieving this objective requires the development of efficient strategies for product value retention, incl…
View article: Enhancing Air Compressor Fault Diagnosis: A Comparative Study of GPT‐2 and Traditional Machine Learning Models
Enhancing Air Compressor Fault Diagnosis: A Comparative Study of GPT‐2 and Traditional Machine Learning Models Open
This study investigates the application of GPT‐2, a transformer‐based model, for fault diagnosis in reciprocating air compressors, highlighting its ability to capture complex patterns in acoustic signals. Two approaches are compared: the f…
View article: FE modelling techniques for the simulation of guided waves in plates with variable thickness
FE modelling techniques for the simulation of guided waves in plates with variable thickness Open
Structural health monitoring based on ultrasonic guided waves is widely spreading attention in diagnosis and prognosis of engineered parts. Plate-like structures, such as those used in the aerospace sector, are often characterised by a var…
View article: FE Analyses of a CFRP–Aluminum Single‐Lap Hybrid Bonded/Bolted Joint at Different Tensile Loads
FE Analyses of a CFRP–Aluminum Single‐Lap Hybrid Bonded/Bolted Joint at Different Tensile Loads Open
Joints are often unavoidable and can be critical points in a complex structure made up of different sub‐elements and materials, e.g., a lightweight aircraft structure. Joining can be performed with different techniques as mechanical fasten…
View article: A Methodology for Determining the Design Variables of a Metal Beam to Minimize Economic and Environmental Costs
A Methodology for Determining the Design Variables of a Metal Beam to Minimize Economic and Environmental Costs Open
Nowadays, the minimization of energy, costs, and resource consumption of industrial products through their lifecycle is at the center of the industry and research community attention. Ideally, all these factors should be considered during …
View article: Influence of Building Position and Printing Scheme on Mechanical Properties of Fused Filament Fabrication PLA Specimens
Influence of Building Position and Printing Scheme on Mechanical Properties of Fused Filament Fabrication PLA Specimens Open
The recent improvement of additive manufacturing (AM) technologies has been attracting the industry and research community attention. This paper aims to investigate the influence of building position and printing scheme on the tensile mech…
View article: Composite Panel Damage Classification Based on Guided Waves and Machine Learning: An Experimental Approach
Composite Panel Damage Classification Based on Guided Waves and Machine Learning: An Experimental Approach Open
Ultrasonic guided waves (UGW) are widely used in structural health monitoring (SHM) systems due to the sensitivity of their propagation mechanisms to local material changes, i.e., those induced by damage. Post-processing of the signals gat…
View article: Development and validation of a probabilistic multistage algorithm for damage localization in piezo-monitored structures
Development and validation of a probabilistic multistage algorithm for damage localization in piezo-monitored structures Open
All structures during operating life can be affected by faults induced by accidental events and operational conditions. Structural health monitoring systems can provide quasi-real-time diagnosis of the structure, thus enabling the conditio…
View article: Classification of Unbalanced and Bowed Rotors under Uncertainty Using Wavelet Time Scattering, LSTM, and SVM
Classification of Unbalanced and Bowed Rotors under Uncertainty Using Wavelet Time Scattering, LSTM, and SVM Open
A growing interest in intelligent fault detection may sometimes lead to practical issues when existing malfunctions reveal analogous indications and the number of observations is limited. This article addresses the classification problem o…
View article: Machine learning for prognostics and health management of industrial mechanical systems and equipment: A systematic literature review
Machine learning for prognostics and health management of industrial mechanical systems and equipment: A systematic literature review Open
In the last decade, the adoption of technological tools in manufacturing industry, such as the use of the Internet of Things (IoT) and Machine Learning (ML), has led to the advent of the industry 4.0 (I4.0). In this scenario, intelligent d…
View article: A modelling technique to investigate the effects of quasi-static loads on guided-wave based structural health monitoring systems
A modelling technique to investigate the effects of quasi-static loads on guided-wave based structural health monitoring systems Open
Guided wave-based methods for damage detection have been widely investigated as techniques to identify damages and their dimensions in structures. Most of the research activities presented in literature have been performed focusing on simp…
View article: Unbalanced, cracked, and misaligned rotating machines: a comparison between classification procedures throughout the steady-state operation
Unbalanced, cracked, and misaligned rotating machines: a comparison between classification procedures throughout the steady-state operation Open
This article compares two intelligent methods for automatic detection of unbalancing, cracks, and parallel misalignment in rotary machines. The finite element method is used to model the faults in a rotating system. The modeled system then…
View article: Numerical Investigation on the Impact Resistance of a Hydrogen Fuel Tank
Numerical Investigation on the Impact Resistance of a Hydrogen Fuel Tank Open
In near future, the main challenge is to reduce the use of fossil fuels that currently emit the bulk of global CO 2 emissions, responsible of the global warming and climate change. Hydrogen, as a future fuel candidate, would play a signifi…
View article: FE Model for Bird Strike Simulation on ARALL Leading Edge
FE Model for Bird Strike Simulation on ARALL Leading Edge Open
This paper deals with the development of a finite element (FE) model for the simulation of a bird strike event on an innovative leading edge made of ARALL (ARamid ALuminum Laminate) material. To assess the reliability of the FE analyses, a…
View article: Finite Element Modeling Approaches, Experimentally Assessed, for the Simulation of Guided Wave Propagation in Composites
Finite Element Modeling Approaches, Experimentally Assessed, for the Simulation of Guided Wave Propagation in Composites Open
Today, structural health monitoring (SHM) systems based on guided wave (GW) propagation represent an effective methodology for understating the structural integrity of primary and secondary structures, also made of composite materials. How…
View article: Numerical Investigation on Guided Waves Dispersion and Scattering Phenomena in Stiffened Panels
Numerical Investigation on Guided Waves Dispersion and Scattering Phenomena in Stiffened Panels Open
The aim of this work is to propose a numerical methodology based on the finite element (FE) method to investigate the dispersive behavior of guided waves transmitted, converted, and reflected by reinforced aluminum and composite structures…
View article: Damage Detection in Flat Panels by Guided Waves Based Artificial Neural Network Trained through Finite Element Method
Damage Detection in Flat Panels by Guided Waves Based Artificial Neural Network Trained through Finite Element Method Open
Artificial Neural Networks (ANNs) have rapidly emerged as a promising tool to solve damage identification and localization problem, according to a Structural Health Monitoring approach. Finite Element (FE) Analysis can be extremely helpful…
View article: A crashworthiness optimisation procedure for the design of full-composite fuselage section
A crashworthiness optimisation procedure for the design of full-composite fuselage section Open
Crashworthiness of composites is a key-point in the design of new aeronautical structures. Special attention has been addressed in the last years to the energy absorption mechanisms of dedicated components in order to limit the structural …
View article: Numerical Drop Test of a Full Composite Fuselage Section Having Two Components of Velocity
Numerical Drop Test of a Full Composite Fuselage Section Having Two Components of Velocity Open
FIGURES 1–5. Aturus triangularis sp. n., male: 1, idiosoma, dorsal view; 2, idiosoma, ventral view; 3, pedipalp, lateral view; 4, leg IV; 5, claws of leg IV. Scale bars = 50 µm for Figs. 1–2, 4; 25 µm for Figs. 3, 5.
View article: Drop test simulation and validation of a full composite fuselage section of a regional aircraft
Drop test simulation and validation of a full composite fuselage section of a regional aircraft Open
In the aircraft industry, the use of fiber reinforced materials for primary structural components over metallic parts has increased up to more than 50% in the recent years, because of their high strength and high modulus to weight ratios, …