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A Convolutional Neural Network for Impact Detection and Characterization of Complex Composite Structures Open
This paper reports on a novel metamodel for impact detection, localization and characterization of complex composite structures based on Convolutional Neural Networks (CNN) and passive sensing. Methods to generate appropriate input dataset…
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Design and performance analyses of a fixed wing battery VTOL UAV Open
The objective of this paper is to explain the design steps and performance analyses including energy consumption of a fixed-wing (FW) vertical take-off and landing (VTOL) unmanned air vehicle (UAV). The vehicle is designed from the beginni…
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Humanoid Robots in Aircraft Manufacturing: The Airbus Use Cases Open
We report on the results of a collaborative project that investigated the deployment of humanoid robotic solutions in air-craft manufacturing for several assembly op erations where access by wheeled or railported robotic platforms is not p…
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About Bell Helicopter FCX-001 Concept Aircraft-A Short Review Open
Bell Helicopter is always preparing beautiful surprises for us, so this year has not been outdone and has revealed its vision of its future aircraft model FCX-001, a true vertical elevator, ment to can climb to high altitudes in a record t…
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Cost-Effectiveness of Structural Health Monitoring in Fuselage Maintenance of the Civil Aviation Industry † Open
Although structural health monitoring (SHM) technologies using sensors have dramatically been developed recently, their capability should be evaluated from the perspective of the maintenance industry. As a first step toward utilizing senso…
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Damage detection in large composite stiffened panels based on a novel SHM building block philosophy Open
This paper proposes a structural health monitoring (SHM) building block (BB) approach for guided wave based structural health monitoring (GWSHM) of large composite stiffened panel subjected to varying temperature conditions. The proposed a…
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Some Special Aircraft Open
In this study, the authors want to present a few more distinct aircraft from a constructive and functional point of view. Their role has often been determined by the need to achieve or fulfill certain more or less strategic objectives. Suc…
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Additive Manufacturing Offers New Opportunities in UAV Research Open
Multi-rotors vehicles have become a consolidated reality in modern aeronautical field. These small helicopters consist in a fuselage "hanged" under a set of fixed pitch propellers each powered by an electric motor. These vehicles have grea…
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Distributed propulsion and ultra-high by-pass rotor study at aircraft level Open
This technical article discusses design and integration associated with distributed propulsion as a means of providing motive power with significantly reduced emissions and external noise for future aircraft concepts. The technical work re…
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Aircraft Fuselage Corrosion Detection Using Artificial Intelligence Open
Corrosion identification and repair is a vital task in aircraft maintenance to ensure continued structural integrity. Regarding fuselage lap joints, typically, visual inspections are followed by non-destructive methodologies, which are tim…
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Drop test and crash simulation of a civil airplane fuselage section Open
Crashworthiness of a civil airplane fuselage section was studied in this paper. Firstly, the failure criterion of a rivet was studied by test, showing that the ultimate tension and shear failure loads were obviously affected by the loading…
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A Multi-Level Decision Fusion Strategy for Condition Based Maintenance of Composite Structures Open
In this work, a multi-level decision fusion strategy is proposed which weighs the Value of Information (VoI) against the intended functions of a Structural Health Monitoring (SHM) system. This paper presents a multi-level approach for thre…
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Ice particle sampling from aircraft – influence of the probing position on the ice water content Open
The ice water content (IWC) of cirrus clouds is an essential parameter determining their radiative properties and thus is important for climate simulations. Therefore, for a reliable measurement of IWC on board research aircraft, it is imp…
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Concept of a Conducting Composite Material for Lightning Strike Protection Open
The paper focuses on development of a multifunctional material which allows conducting of electrical current and simultaneously holds mechanical properties of a polymeric composite. Such material could be applied for exterior fuselage elem…
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Development and application of optical fibre strain and pressure sensors for in-flight measurements Open
Fibre optic based sensors are becoming increasingly viable as replacements for traditional
\nflight test sensors. Here we present laboratory, wind tunnel and flight test results of fibre
\nBragg gratings (FBG) used to measure surface strai…
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A Statistical Energy Analysis (SEA) model of a fuselage section for the prediction of the internal Sound Pressure Level (SPL) at cruise flight conditions Open
Comfort plays an increasingly important role in the interior design of airplanes. In general, comfort is defined as 'freedom from pain, well-being'; in scientific literature, indeed, it is defined as a pleasant state of physiological, psyc…
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A compliant polymorphing wing for small UAVs Open
This paper presents the development of a novel compliant polymorphing wing capable of chord and camber morphing for small UAVs. The morphing wing can achieve up to 10% chord extension and ±20° camber changes. The design, modeling, sizing, …
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Simulation and optimization of vacuum assisted resin infusion process for large-sized structures made of carbon fiber-reinforced plastics Open
Vacuum assisted resin infusion (VARI) is a process applied to manufacture large structures of composite materials, such as aircraft wing and fuselage skins, but the process parameters are designed by experience or lots of experiments. In t…
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Proof of Concept Study for Fuselage Boundary Layer Ingesting Propulsion Open
Key results from the EU H2020 project CENTRELINE are presented. The research activities undertaken to demonstrate the proof of concept (technology readiness level—TRL 3) for the so-called propulsive fuselage concept (PFC) for fuselage wake…
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Unsteady Pylon Loading Caused by Propeller-Slipstream Impingement for Tip-Mounted Propellers Open
An experimental analysis was performed of the unsteady aerodynamic loading caused by the impingement of a propeller slipstream on a downstream lifting surface. When installed on an aircraft, this unsteady loading results in vibrations that…
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Noise Prediction within Conceptual Aircraft Design Open
Motivation for the presented activities is the integration of noise as an additional objective in conceptual aircraft design. Therefore, the Parametric Aircraft Noise Analysis Module (PANAM) is developed to account for individual noise sou…
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Simultaneous Longitudinal and Lateral Flight Control Systems Design for Both Passive and Active Morphing TUAVs Open
In this article, simultaneous longitudinal and lateral flight control systems design for both passive and active morphing tactical unmanned aerial vehicles (TUAVs) is first time applied for autonomous flight performance maximization in the…
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Carbon Fiber Reinforced Thermoplastics: From Materials to Manufacturing and Applications Open
Carbon fiber reinforced thermoplastics (CFRTs) have witnessed a resurgence in recent times since their first industrial use over five decades ago, with revitalized interest from aerospace companies and other key sectors including energy an…
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Computational Investigation of a Boundary-Layer-Ingestion Propulsion System Open
The present paper examines potential propulsive and aerodynamic benefits of integrating a Boundary-Layer Ingestion (BLI) propulsion system into the Common Research Model (CRM) geometry and the NASA Tetrahedral Unstructured Software System …
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Raptor wing morphing with flight speed Open
In gliding flight, birds morph their wings and tails to control their flight trajectory and speed. Using high-resolution videogrammetry, we reconstructed accurate and detailed three-dimensional geometries of gliding flights for three rapto…
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Numerical simulation of aerodynamic interaction for a tilt rotor aircraft in helicopter mode Open
A rotor CFD solver is developed for simulating the aerodynamic interaction phenomenon among rotor, wing and fuselage of a tilt rotor aircraft in its helicopter mode. The unsteady Navier–Stokes equations are discretized in inertial frame an…
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Non-intrusive flow diagnostics for unsteady inlet flow distortion measurements in novel aircraft architectures Open
Inlet flow distortion is expected to play a major role in future aircraft architectures where complex air induction systems are required to couple the engine with the airframe. The highly unsteady distortions generated by such intake syste…
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Failure Analysis of Hat-Stringer-Stiffened Aircraft Composite Panels under Four-Point Bending Loading Open
Hat-stringer-stiffened composite panels have been widely used in aircrafts. Accurate failure analysis of them is important for the safety and integrity of the fuselage. During the service period, these panels will bear not only the lateral…
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Boundary Layer Ingestion Propulsion: A Review on Numerical Modeling Open
The present paper focuses on the numerical modeling approaches adopted in boundary layer ingestion (BLI) studies. Three driving aircraft concepts have been identified, namely propulsive fuselage concept (PFC), rear engines concept (REC), a…
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An optimal method of posture adjustment in aircraft fuselage joining assembly with engineering constraints Open
Posture of an aircraft fuselage can be evaluated based on the coordinate values of measure points fixed on the aircraft fuselage in aircraft final assembly. Posture adjustment is carried out by rotation and translation of the aircraft fuse…