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Autonomous flight performance optimization of fixed-wing unmanned aerial vehicle with morphing wingtip Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-03-29 Tugrul Oktay, Yüksel Eraslan
Purpose The purpose of this paper is to improve autonomous flight performance of a fixed-wing unmanned aerial vehicle (UAV) via simultaneous morphing wingtip and control system design conducted with optimization, computational fluid dynamics (CFD) and machine learning approaches. Design/methodology/approach The main wing of the UAV is redesigned with morphing wingtips capable of dihedral angle alteration
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Viewing electromagnetic scattering characteristics on air-brake of a stealth plane Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-04-01 Zeyang Zhou, Jun Huang
Purpose This study aims to learn the dynamic radar cross-section (RCS) of a deflection air brake. Design/methodology/approach The aircraft model with delta wing, V-shaped tail and blended wing body is designed, and high-precision unstructured grid technology is used to deal with the surface of air brake and fuselage. The calculation method based on multiple tracking and dynamic scattering is presented
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Global fast terminal sliding mode control for automatic carrier landing with environmental disturbances Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-03-29 Zhuoer Yao, Zi Kan, Daochun Li, Haoyuan Shao, Jinwu Xiang
Purpose The purpose of this paper is to solve the challenging problem of automatic carrier landing with the presence of environmental disturbances. Therefore, a global fast terminal sliding mode control (GFTSMC) method is proposed for automatic carrier landing system (ACLS) to achieve safe carrier landing control. Design/methodology/approach First, the framework of ACLS is established, which includes
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Adaptive sensor fault tolerant control with prescribed performance for unmanned autonomous helicopter based on neural networks Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-03-29 Min Wan, Mou Chen, Mihai Lungu
Purpose This paper aims to study a neural network-based fault-tolerant controller to improve the tracking control performance of an unmanned autonomous helicopter with system uncertainty, external disturbances and sensor faults, using the prescribed performance method. Design/methodology/approach To ensure that the tracking error satisfies the prescribed performance, the authors adopt an error transformation
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Developing conceptual model for safety risk management in aviation as building capacity and resilience strategy Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-03-20 Ayse KUCUK YILMAZ, Konstantinos N. MALAGAS, Triant G. FLOURIS
Purpose This study aims to develop an inclusive, multidisciplinary, flexible and organizationally adaptable safety risk management framework, including diversity management, that will be implemented to ensure safety is and remains at the desired level. If the number of incidents and potential incidents that could lead to accidents and their impact rates are to be reduced operationally and administratively
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Fuel consumption estimation for jet aircraft: a mathematical model development Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-03-18 Amar Benkhaled, Amina Benkhedda, Braham Benaouda Zouaoui, Soheyb Ribouh
Purpose Reducing aircraft fuel consumption has become a paramount research area, focusing on optimizing operational parameters like speed and altitude during the cruise phase. However, the existing methods for fuel reduction often rely on complex experimental calculations and data extraction from embedded systems, making practical implementation challenging. To address this, this study aims to devise
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Formation fault-tolerant control for multiple UAVs with external disturbances Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-03-13 Ziyuan Ma, Huajun Gong, Xinhua Wang
Purpose The purpose of this paper is to construct an event-triggered finite-time fault-tolerant formation tracking controller, which can achieve a time-varying formation control for multiple unmanned aerial vehicles (UAVs) during actuator failures and external perturbations. Design/methodology/approach First, this study developed the formation tracking protocol for each follower using UAV formation
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Optimization of landing gear under consideration of vibration comfort for civil aircraft Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-03-12 Shuowen Yan, Pu Xue, Long Liu, M.S. Zahran
Purpose This study aims to investigate the design and optimization of landing gear buffers to improve the landing-phase comfort of civil aircraft. Design/methodology/approach The vibration comfort during the landing and taxiing phases is calculated and evaluated based on the flight-testing data for a type of civil aircraft. The calculation and evaluation are under the guidance of the vibration comfort
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Research on vibration characteristics of rocket engine flow pipeline Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-03-11 Su Yong, Gong Wu-Qi
Purpose Abnormal vibrations often occur in the liquid oxygen kerosene transmission pipelines of rocket engines, which seriously threaten their safety. Improper handling can result in failed rocket launches and significant economic losses. Therefore, this paper aims to examine vibrations in transmission pipelines. Design/methodology/approach In this study, a three-dimensional high-pressure pipeline
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Design methodology for combustor in advanced gas turbine engines: a review Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-03-01 Insong Kim, Hakson Jin, Kwangsong Ri, Sunbong Hyon, Cholhui Huang
Purpose A combustor design is a particularly important and difficult task in the development of gas turbine engines. During studies for accurate and easy combustor design, reasonable design methodologies have been established and used in engine development. The purpose of this paper is to review the design methodology for combustor in development of advanced gas turbine engines. The advanced combustor
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Multiobjective optimization of process parameters of AZ91D/AgNPs/TiO2 composite fabricated by friction stir processing using response surface methodology and desirability Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-02-28 Ram Niwas, Vikas Kumar
Purpose This paper aims to determine the optimum parametric settings for yielding superior mechanical properties, namely, ultimate tensile strength (UTS), yield strength (YS) and percentage elongation (EL) of AZ91D/AgNPs/TiO2 hybrid composite fabricated by friction stir processing. Design/methodology/approach An empirical model has been developed to govern crucial influencing parameters, namely, rotation
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Helicopter airfoil aerodynamic characteristics and rotor trim in sandy environments Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-02-22 Zejian Huang, Yihua Cao, Yanyang Wang
Purpose The sandy environment is one of the typical environments in which helicopters operate. Air-sand two-phase flow in sandy environments may be an important factor affecting flight safety. Taking a typical example, this paper aims to investigate the aerodynamic and rotor trim characteristics of the UH-60 helicopter in sandy environments. Design/methodology/approach A computational study is conducted
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Model-free low-power observer based robust trajectory tracking control of UAV quadrotor with unknown disturbances Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-02-13 Muhammad Nabeel Siddiqui, Xiaolu Zhu, Hanad Rasool, Muhammad Bilal Afzal, Nigar Ahmed
Purpose The purpose of this paper is to design an output-feedback algorithm based on low-power observer (LPO), robust chattering-free controller and nonlinear disturbance observer (DO) to achieve trajectory tracking of quadrotor in the Cartesian plane. Design/methodology/approach To achieve trajectory tracking control, firstly the decoupled rotational and translational model of quadrotor are modified
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Life cycle analysis results for engine blisk LCA Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-01-31 Kilian Fricke, Thomas Bergs, Philipp Ganser, Martin Seimann
Purpose The aviation industry has seen consistent growth over the past few decades. To maintain its sustainability and competitiveness, it is important to have a comprehensive understanding of the environmental impacts across the entire life cycle of the industry, including materials, processes and resources; manufacturing and production; lifetime services; reuse; end-of-life; and recycling. One important
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Impact time guidance law for arbitrary lead angle using sliding mode control Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-02-02 He Du, Ming Yang, Songyan Wang, Tao Chao
Purpose This paper aims to investigate a novel impact time control guidance (ITCG) law based on the sliding mode control (SMC) for a nonmaneuvering target using the predicted interception point (PIP). Design/methodology/approach To intercept the target with the minimal miss distance and desired impact time, an estimation of time-to-go is introduced. This estimation results in a precise impact time
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Comparison of drilling of Inconel 625 by AWJM and WEDM Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-02-02 Ferhat Ceritbinmez, Ali Günen
Purpose This study aims to comparatively analyze the cut parts obtained as a result of cutting the Ni-based Inconel 625 alloy, which is widely used in the aerospace industry, with the wire electro-discharge machining (WEDM) and abrasive water jet machining (AWJM) methods in terms of macro- and microanalyses. Design/methodology/approach In this study, calipers, Mitutoyo SJ-210, Nikon SMZ 745 T, scanning
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Review on impact, crushing response and applications of re-entrant core sandwich structures Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-01-26 Mustafa S. Al-Khazraji
Purpose Auxetic sandwich structures are gaining attention because of the negative Poisson’s ratio effect offered by these structures. Re-entrant core was one configuration of the auxetic structures. There is a growing concern about the design and behavior of re-entrant cores in aerospace, marine and protection applications. Several researchers proposed various designs of re-entrant core sandwiches
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Hovering performance analysis of helicopter rotor blades using supercritical airfoil Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-01-25 Inamul Hasan, Mukesh R., Radha Krishnan P., Srinath R., Boomadevi P.
Purpose This study aims to find the characteristics of supercritical airfoil in helicopter rotor blades for hovering phase using numerical analysis and the validation using experimental results. Design/methodology/approach Using numerical analysis in the forward phase of the helicopter, supercritical airfoil is compared with the conventional airfoil for the aerodynamic performance. The multiple reference
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Fuel savings on missed approach through aircraft reinjection Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-01-22 María Carmona, Rafael Casado González, Aurelio Bermúdez, Miguel Pérez-Francisco, Pablo Boronat, Carlos Calafate
Purpose In the aerial transportation area, fuel costs are critical to the economic viability of companies, and so urgent measures should be adopted to avoid any unnecessary increase in operational costs. In particular, this paper addresses the case of missed approach manouevres, showing that it is still possible to optimize the usual procedure. Design/methodology/approach The costs involved in a standard
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Long wave infrared signature of swept back leading edges in aircraft frontal aspect Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-01-18 Kajal Vinayak, Shripad P. Mahulikar
Purpose In recent years, increased use of all-aspect infrared (IR)-guided missiles based on the long-wave infrared (LWIR; 8–12 µm) band has lowered the probability of aircraft survival in warfare. The lock-on of these highly sensitive missiles is difficult to break, especially from the front. Aerodynamically heated swept-back leading edges (SBLE), because of their high temperature and large area, serve
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Initial flight test verification of software and hardware in the loop simulations of the flight stabilization system Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-01-16 Albert Zajdel, Michal Welcer, Cezary Jerzy Szczepanski
Purpose This paper aims to present assessment of models and simulation results used in the development process of flight stabilisation system that uses trim tabs for PZL-130 Orlik turboprop military trainer aircraft. Flight test of the system allowed to compare software and hardware simulation results with real flight recordings. Design/methodology/approach Proposed flight stabilisation system was
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Mathematical modelling and PID control system implementation for quadcopter frame Tarot FY650 Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-01-12 Gowtham G., Jagan Raj R.
Purpose The purpose of this study is to find the suitable trajectory path of the Numerical model of the Quadcopter. Quadcopters are widely used in various applications due to their compact size and ease of assembly. Because they are quite unstable, autonomous control systems would be used to overcome this problem. Modelling autonomous control is predominant as the research scope faces challenges because
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Aero-spike and aero-disk effects of on wave drag reduction of supersonic flow past over blunt body Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-01-09 Kathiravan Balusamy, Vinothraj A., Suresh V.
Purpose The purpose of this study is to explore the effects of aerospike and hemispherical aerodisks on flow characteristics and drag reduction in supersonic flow over a blunt body. Specifically, the study aims to analyze the impact of varying the length of the cylindrical rod in the aerospike (ranging from 0.5 to 2.0 times the diameter of the blunt body) and the diameter of the hemispherical disk
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Thermal contact conductance model of rough surfaces with inclination based on three-dimensional fractal theory Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2024-01-01 Xianguang Sun
Purpose The purpose of this study is to establish a thermal contact conductance model of rough surfaces with inclination based on three-dimensional fractal theory. Design/methodology/approach The effects of contact load, inclination angle, fractal dimensional and fractal roughness on thermal contact conductance of rough surfaces were studied using numerical simulation. Findings The results show that
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Analysis of a turbofan engine using a parametric loop Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-19 Ayşe Nur Dişlitaş, Bilge Albayrak Çeper, Melih Yıldız
Purpose In this study, the performance analysis of the split flow turbofan engine with afterburners has been examined using the parametric cycle analysis method. The purpose of this study is to examine how engine performance is impacted by design parameters and flight ambient values and to develop a software in this context. Design/methodology/approach Software has been developed using the open-source
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Analysis of influencing factors of aircraft fuel tank flammability Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-18 Leiming Geng, Ruihua Zhang, Weihua Liu
Purpose It is an indispensable part of airworthiness certification to evaluate the fuel tank flammability exposure time for transport aircraft. There are many factors and complex coupling relationships affecting the fuel tank flammability exposure time. The current work not only lacks a comprehensive analysis of these factors but also lacks the significance of each factor, the interaction relationship
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Performance analysis of electrical environmental control and ice protection systems in a commercial transport aircraft Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-18 Hamdi Ercan, Cüneyt Öztürk, Mustafa Akın
Purpose This paper aims to assess the impact of electrifying the environmental control system (ECS) and ice protection system (IPS), the primary pneumatic system consumers in a conventional commercial transport aircraft, on aircraft weight, range, and fuel consumption. Design/methodology/approach The case study was carried out on Airbus A321-200 aircraft. Design, modelling and analysis processes were
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Uncertainty quantification of blade geometric deviation on compressor stability Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-18 Tianyuan Ji, Wuli Chu
Purpose The geometric parameters of the compressor blade have a noteworthy influence on compressor stability, which should be meticulously designed. However, machining inaccuracies cause the blade geometric parameters to deviate from the ideal design, and the geometric deviation exhibits high randomness. Therefore, the purpose of this study is to quantify the uncertainty and analyze the sensitivity
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Fatigue crack growth rate and propagation mechanisms of SiC particle reinforced Al alloy matrix composites Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-14 Adem Karci, Veysel Erturun, Eşref Çakir, Yakup Çam
Purpose This study aims to investigate the fatigue crack propagation behavior of SiC particle-reinforced 2124 Al alloy composites under constant amplitude axial loading at a stress ratio of R = 0.1. For this purpose, it is performed experiments and comparatively analyze the results by producing 5, 10, 15 Vol.% SiCp-reinforced composites and unreinforced 2124 Al alloy billets with powder metallurgy
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Investigation of the wear behavior of FeNi36 alloy cut by WEDM method under different loads Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-13 Ferhat Ceritbinmez, Yusuf Kanca, Ahmet Tuna, Erdoğan Kanca
Purpose FeNi36 (Invar-36) alloy is widely used in the fabrication of molding tools in aerospace industries but there remains a need to improve its wear and friction performance due to its relatively low hardness. The formation of a heat affected zone (HAZ) on the surface of Invar-36 cut by wire electric discharge machining (WEDM) is promising to enhance its tribological properties. This study aims
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Design and aerodynamic characteristics analysis of propellers for a novel rescue unmanned aerial vehicle Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-13 Ying-Jie Guan, Yong-Ping Li
Purpose To solve the shortcomings of existed search and rescue drones, search and rescue the trapped people trapped in earthquake ruins, underwater and avalanches quickly and accurately, this paper aims to propose a four-axis eight-rotor rescue unmanned aerial vehicle (UAV) which can carry a radar life detector. As the design of propeller is the key to the design of UAV, this paper mainly designs the
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An improved dynamic model identification method for small unmanned helicopter Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-12 Jian Zhou, Shuyu Liu, Jian Lu, Xinyu Liu
Purpose The purpose of this paper is to introduce an improved system identification method for small unmanned helicopters combining adaptive ant colony optimization algorithm and Levy’s method and to solve the problem of low model prediction accuracy caused by low-frequency domain curve fitting in the small unmanned helicopter frequency domain parameter identification method. Design/methodology/approach
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Novel fuel-saving detumbling strategy for post-capture combined spacecraft Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-12 Qing Zhou, Yuanqing Liu, Xiaofeng Liu, Guoping Cai
Purpose In the post-capture stage, the tumbling target rotates the combined spacecraft system, and the detumbling operation performed by the space robot is required. To save the costly onboard fuel of the space robot, this paper aims to present a novel post-capture detumbling strategy. Design/methodology/approach Actuated by the joint rotations of the manipulator, the combined system is driven from
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The effect of global warming and climate changes on aircraft accidents between 2010-2022 Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-11 Tuncer Akay, Cevahir Tarhan
Purpose One of the sectors most affected by the variable weather events caused by climate change and global warming is the aviation sector. Especially in aircraft accidents, weather events increasing with climate change and global warming are effective. The purpose of this study is to determine how much the change in weather conditions caused by global warming and climate changes affect the aircraft
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Effect of aspect ratio on mean flow characteristics of cruciform orifice jet Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-08 Rajesh Kumar S., Nishchay Sadrani, Kannan B.T.
Purpose The purpose of this study reports the effects of aspect ratio (AR) on mean flow characteristics of the cruciform orifice jet. Design/methodology/approach The aspect ratio is the height-to-width ratio of the lobe of the cruciform shape. The aspect ratios considered are 0.25, 0.5, 0.75, 1, 2, 3 and 4. The turbulent jet flow is issued through an orifice being fitted to the jet tunnel facility
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Flow control of a vehicle using reverse flow fan Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-12-05 Mohamed Arif Raj Mohamed, Rathiya S.
Purpose This study aims to achieve optimum flow separation control for a road vehicle using a reverse flow fan on rear side. Design/methodology/approach A full-length reverse flow fan array (fan’s air speed is 50% of the car’s speed) is attached throughout the width of the vehicle at rear edge corner. Findings The reverse flow fan array positioned at rear edge of car pushes the airflow against the
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An easy-to-produce HIS-based MIMO radio altimeter antenna design for aircraft Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-11-28 Serap Kiriş, Muharrem Karaaslan
Purpose The purpose of this study is to design a radio altimeter antenna whose production process is facilitated and can work with multiple-input multiple-output (MIMO) properties to provide space gain on the aircraft. Design/methodology/approach To create an easy-to-produce MIMO, a two-storied structure consisting of a reflector and a top antenna was designed. The dimensions of the reflector were
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Stochastic redesign of mini UAV wing for maximizing autonomous flight performance Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-11-24 Sezer Çoban
Purpose The purpose of this research paper is to recover the autonomous flight performance of a mini unmanned aerial vehicle (UAV) via stochastically optimizing the wing over certain parameters (i.e. wing taper ratio and wing aspect ratio) while there are lower and upper constraints on these redesign parameters. Design/methodology/approach A mini UAV is produced in the Iskenderun Technical University
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Design and development of an experimental bench concept for testing of fuselage stiffened panels, using a virtual testing methodology Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-11-08 Panagiotis Kordas, Konstantinos Fotopoulos, George Lampeas, Evangelos Karelas, Evgenios Louizos
Purpose Fuselage structures are subjected to combinations of axial, bending, shear and differential pressure loads. The validation of advanced metallic and composite fuselage designs against such loads is based on the full-scale testing of the fuselage barrel, which, however, is highly demanding from a time and cost viewpoint. This paper aims to assist in scaling-down the experimentation to the stiffened
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Numerical investigation of the effect of strut geometries on the flow characteristics in a model combustor Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-11-03 Arun G. Nair, Tide P.S., Bhasi A.B.
Purpose The mixing of fuel and air plays a pivotal role in enhancing combustion in supersonic regime. Proper mixing stabilizes the flame and prevents blow-off. Blow-off is due to the shorter residence time of fuel and air in the combustor, as the flow is in supersonic regime. The flame is initiated in the local subsonic region created using a flameholder within the supersonic combustor. This study
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Experimental studies of airliner aerodynamic characteristics at overcritical angles of attack Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-10-30 Andrzej Krzysiak, Robert Placek, Aleksander Olejnik, Łukasz Kiszkowiak
Purpose The main purpose of this study was to determine the basic aerodynamic characteristics of the airliner Tu-154M at the wide range of the overcritical angles of attack and sideslip angles, i.e. α = −900° ÷ 900° and β = −900° ÷ 900°. Design/methodology/approach Wind tunnel tests of the Tu-154M aircraft model at the scale 1:20 were performed in a low-speed wind tunnel T-3 by using a six-component
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Designing aerodynamic devices for UAV – lessons learned Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-10-27 Jacek Mieloszyk, Andrzej Tarnowski, Tomasz Goetzendorf-Grabowski
Purpose Designing new aircraft that are state-of-the-art and beyond always requires the development of new technologies. This paper aims to present lessons learned while designing, building and testing new UAVs in the configuration of the flying wing. The UAV contains a number of aerodynamic devices that are not obvious solutions and use the latest manufacturing technology achievements, such as 3D
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The influences of eccentricity on the fastener load and bearing strength of eccentric connection in aircraft structure Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-10-16 Chenghu Li
Purpose This paper aims to study the influences of eccentricity on the fastener load and bearing strength of the eccentric connection in the aircraft structure. Design/methodology/approach The special experiment is designed for the researches. The fastener loads of the eccentric connection are gained by using the derived formulas and numerical analysis, and the fastener load rules is verified by the
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The effect of hexagonal boron nitride nanopowders addition on the mechanical behaviors of basalt fabric reinforced composites Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-10-10 Fatma Bakal Gumus, Ahmet Yapici
Purpose The purpose of this paper is to investigate the effect of doping element on the structural, thermal properties, mechanical performance and the failure mechanism of hexagonal nano boron nitride (h-BN)-reinforced basalt fabric (BF)/epoxy composites produced by hand lay-up and vacuum bagging technique. h-BN particles doped to composite materials increased the tensile, bending and impact strength
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Downstream characteristics of extended flat plate trailing edge on S809 wind turbine blade under various turbulent intensities Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-10-11 Mano S., Nadaraja Pillai S.
Purpose This study aims to investigate the effect of downstream characteristics of S809 wind turbine blade with various extended flat plate (EFP) configuration. Wind farms are recently modified to improve the power production through placing number of wind turbines and locations. Design/methodology/approach A series of wind tunnel experiments were carried out to evaluate the downstream wake characteristics
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Forming limit diagram and optimization of process parameters in SPIF of Inconel 625 aviation-grade superalloy Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-10-10 Pawan Bishnoi, Pankaj Chandna
Purpose This paper aims to optimize the single-point incremental forming process variables for realizing higher formability in Inconel 625 components and to plot the forming limit diagram for Inconel 625 aviation-grade superalloy. Design/methodology/approach The formability of Inconel 625 components has been measured in terms of major strain, minor strain and minimum sheet thickness. Response surface
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Synergistic corrosion protection of stir-cast hybrid aluminum composites reinforcing CeO2 and GNPs nano-particulates Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-10-10 Dinesh Kumar, Satnam Singh, Surjit Angra
Purpose This study aims to investigate the corrosion behavior of stir-cast hybrid aluminum composite reinforced with CeO2 and graphene nanoplatelets (GNPs) nanoparticulates used as cylinder liner material in the engines (automotive, aerospace and aircraft industries). Design/methodology/approach The composites were prepared using the stir-casting technique, and their microstructure and corrosion behavior
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Role of spirulina microalgae blends in the micro gas turbine on engine performance and emission characteristics Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-10-09 Gokulnath R., Booma Devi
Purpose Diesel has traditionally been considered the best-suited and most widely used fuel in various sectors, including manufacturing industries, power production, automobiles and transportation. However, with the ongoing crisis of fossil fuel inadequacy, the search for alternative fuels and their application in these sectors has become increasingly important. One particularly interesting and beneficial
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Experiment and simulation analysis of tribological and dynamic characteristics in aeroengine hybrid ceramic bearing Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-10-05 Zhixiong Chen, Weishan Long, Li Song, Xinglin Li
Purpose This paper aims to research the tribological and dynamic characteristics of aeroengine hybrid ceramic bearings through wear experiments and simulation analysis. Design/methodology/approach First, the authors carried out wear experiments on Si3N4–GCr15 and GCr15–GCr15 friction pairs through the ball-disc wear test rig to explore the tribological properties of their materials. Second, using ANSYS/LS-DYNA
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An empirical evaluation of airport capacity and demand: insights regarding air traffic design hours and delay Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-28 Álvaro Rodríguez-Sanz, Luis Rubio-Andrada
Purpose An important and challenging question for air transportation regulators and airport operators is the definition and specification of airport capacity. Annual capacity is used for long-term planning purposes as a degree of available service volume, but it poses several inefficiencies when measuring the true throughput of the system because of seasonal and daily variations of traffic. Instead
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Case study of detection and monitoring of wildlife by UAVs equipped with RGB camera and TIR camera Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-25 Rafal Perz, Kacper Wronowski, Roman Domanski, Igor Dąbrowski
Purpose Observation of the animal world is an important component of nature surveys. It provides a number of different information concerning aspects such as population sizes, migration directions, feeding sites and many other data. The paper below presents the results from the flights of an unmanned aerial vehicle (UAV) aimed at detecting animals in their natural environment. Design/methodology/approach
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Analysis of chip formation mechanism in turning of AA 7075/SiCp MMCs Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-22 Rajesh Kumar Bhushan
Purpose The purpose of this paper is to examine the quality of the turned surface. The quality of the surface produced depends on the nature of the chips, which are produced while turning metal matrix composites. This quality is a function of the machining parameters, tool material, tool configuration and elements of the composites. Design/methodology/approach In this study, the turning of AA7075/15
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Analysis of frontier digital technologies in continuing airworthiness management frameworks and applications Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-22 Tahmineh Raoofi, Sahin Yasar
Purpose This study aims to elaborate on the existing link between maintenance practices and the digital world while also highlighting any unaddressed potential for digital transformation in aircraft maintenance. Additionally, explore how digital technologies contribute to optimizing efficiency within the continuing airworthiness management (CAM) processes. Design/methodology/approach A literature review
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Simultaneous arm morphing quadcopter and autonomous flight system design Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-22 Oguz Kose, Tugrul Oktay, Enes Özen
Purpose The purpose of this paper is to obtain values that stabilize the lateral and longitudinal flight of the quadrotor for which the morphing amount and the best Proportional-Integral-Derivative (PID) coefficients are determined by using the simultaneous perturbation stochastic approximation (SPSA) optimization algorithm. Design/methodology/approach Quadrotor consists of body and arms; there are
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Visible time window calculation based on map segmentation for task planning Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-22 Yue Wang, Han Zhao, Haiyue Yang, Xiangshuai Song
Purpose The visible time window (VTW) calculation of satellites to ground targets is significant for Earth observation satellites' operation management and control. With the improvement of satellite maneuvering capability and the complexity of on-orbit observation tasks, the traditional VTW calculation methods can no longer meet the demands of satellite operation management and control due to a large
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Friction forge riveting of AA7075-T6 sheets with large diameter 2117-T3 rivets Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-13 Mustafa Soylak, Veysel Erturun
Purpose The purpose of this paper is to examine the effect of changing some riveting parameters on the riveting quality of a riveted aircraft structure. In this study, riveting was performed by applying friction under pressure. Design/methodology/approach During this friction riveting process, a feed of 3 mm/min was applied in the axial direction. Rotation speed values of 2,000, 2,200 and 2,400 rpm
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Severity assessment of sudden plunging motion for jet transport aircraft in response to severe atmospheric turbulence Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-14 Wei Jiang, Ray C. Chang, Ning Yang, Ying Xu
Purpose The purpose of this paper is to present a comparative study of flight circumstances, dynamic stability characteristics and controllability for two transport aircraft in severe atmospheric turbulence at transonic cruise flight for the purpose to obtain the prevention concepts of injuries to passengers and crew members for pilot training in International Air Transport Association (IATA) – Loss
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Vertical take-off and hover to cruise transition for a hybrid UAV using model predictive controller and MPC allocation Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-15 Navid Mohammadi, Morteza Tayefi, Man Zhu
Purpose Dual-thrust hybrid unmanned aerial vehicle (UAV) technology offers a highly robust and efficient system that incorporates the take-off and landing capabilities of rotary-wing aircraft with the endurance capacities of fixed-wing aircraft. The purpose of this study is to model and control a hybrid UAV in three distinct flight modes: rotary-wing, fixed-wing and over-actuated model. Design/methodology/approach
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A fuzzy logic evolution of the functional resonance analysis method (FRAM) to assess risk in ground operation Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-06 Ertan Tengiz, Gulay Unal
Purpose The basis of safe flight is the management of risks. This paper aims to present a new process-based risk assessment model, with an approach to calculate the risk score. Design/methodology/approach Since thousands of minor changes occur within ground operations, it is difficult to calculate how much risk these variations will pose. This paper proposes a risk assessment model fed from analysis
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Iterative learning data driven strategy for aircraft control system Aircr. Eng. Aerosp. Technol. (IF 1.5) Pub Date : 2023-09-05 Wang Jianhong, Guo Xiaoyong
Purpose This paper aims to extend the previous contributions about data-driven control in aircraft control system from academy and practice, respectively, combining iteration and learning strategy. More specifically, after returning output signal to input part, and getting one error signal, three kinds of data are measured to design the unknown controller without any information about the unknown plant