Yazar "Havacılık ve Uzay Bilimleri Fakültesi -- Uçak Bakım ve Onarım Bölümü" için listeleme
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The aerodynamic force estimation of a swept-wing UAV using ANFIS based on metaheuristic algorithms
Uzun, Metin; Bilgiç, Hasan Hüseyin; Çopur, Engin Hasan; Çoban, Sezer (Cambridge University Press, 2023)In this paper, a new approach to modeling and controlling the problems associated with a morphing unmanned aerial vehicle (UAV) is proposed. Within the scope of the study, a dataset was created by obtaining a wide range ... -
Aerodynamic Performance Improvement with Morphing Winglet Design
Uzun, Metin; Çoban, Sezer (Journal of aviation (Online), 2021)The aim of this study is to reduce unnecessary lift and minimize drag at the same time when the aircraft reaches a certain speed level by using the active morphing method during flight. In this study, the flight performance ... -
Analysis of combined passively and actively morphing blade root chord length and blade taper for helicopter control
Şal, Fırat (Emerald Group Publishing Ltd, 2019)Purpose The purpose of this study is to examine the effect of passive and active morphing of blade root chord length and blade taper on the control effort of the flight control system (FCS) of a helicopter. Design/method ... -
Autonomous performance maximization of research-based hybrid unmanned aerial vehicle
Çoban, Sezer (Emerald Group Publishing, 2020)Purpose This paper aims to investigate the autonomous performance optimization of a research-based hybrid unmanned aerial vehicle (i.e. HUAV) manufactured at Iskenderun Technical University. Design/methodology/approach To ... -
Conceptual design and optimal sizing of a small unmanned aerial vehicle with fuel cell and battery-powered hybrid propulsion system by meta-heuristic algorithms based on energy consumption
Çınar, Hasan; Tunçel, Süleyman; Kandemir, İlyas; Gözel, Tuba (Taylor and Francis, 2023)In this paper, a new conceptual design methodology for a hybrid propulsion system consisting of the battery and hydrogen fuel cells is presented based on the minimum energy consumption of the UAV. In this context, an ... -
Different Autopilot Systems Design For a Small Fixed Wing Unmanned Aerial Vehicle
Çoban, Sezer (Avrupa Bilim ve Teknoloji Dergisi, 2019)The aim of this study is to design an autopilot system for Unmanned Aerial Vehicle (UAV) in a small size and to compare the efficiency of the systems designed with different methods. For this purpose, linearized equations ... -
Effect of Morphing on Control Energy of Output Variance Constrained Controller for Load-Carrying UAVs
Şal, Fırat (Institute of Electrical and Electronics Engineers Inc., 2019)This paper presents novel results for load-carrying UAVs having morphing capability and guided by output variance constrained controller. Effects of extension ratios of wing span and horizontal tail span on control energy ... -
The effects of interface and matrix reinforcements on fracture toughness of E-Glass/epoxy laminate
Saraçoğlu, Göksel; Yapıcı, Ahmet (Institute of Physics Publishing, 2020)In this study, the effects of low amount (0.1 wt%) multi-walled carbon nanotube (MWCNTs) distributed homogenously in epoxy via cationic surfactant (cetyl pyridiniumchloride-CPC), polyacrylonitrile nanofiber (in the range ... -
Effects of the actively morphing root chord and taper on helicopter energy
Şal, Fırat (Emerald Group Publishing Ltd, 2019)Purpose The purpose of this paper presents the effects of actively morphing root chord and taper on the energy of the flight control system (i.e. FCS). Design/methodology/approach Via regarding previously mentioned purposes, ... -
Electrically Driven VTOL Flying Car Designing and Aerodynamic Analysis
Uzun, Metin; Çoban, Sezer (Avrupa Bilim ve Teknoloji Dergisi, 2021)In this study, the design of the electric powered VTOL Flying car was made in the CAD program, and the longitudinal, vertical and lateral flight dynamics were examined and aerodynamic analysis was made. In the design, the ... -
Fatigue analysis of bolted flange joints of a rotary dryer
Yapıcı, Ahmet; Saraçoğlu, Göksel (Elsevier, 2016)This paper describes the fatigue failure of a rotary dryer in a chemical plant. The process conditions required the dryer to be rotated continuously at a speed of about two and half revolutions per minute. The shell structure ... -
Fatigue analysis of girth gear of a rotary dryer
Saraçoğlu, Göksel; Yapıcı, Ahmet (Elsevier, 2016)This paper describes the fatigue failure of girth gear manufactured from low alloy cast steel of rotary dryer in a chemical plant. The cracks of T-section web of the girth gear occurred at the end of 25 year working period ... -
Improving Autonomous Performance of a Passive Morphing Fixed Wing UAV
Çoban, Sezer; Bilgiç, Hasan Hüseyin; Akan, Ercan (Kauno Technologijos Universitetas, 2020)In this article, simultaneous longitudinal and lateral flight control systems design for both passive and active morphing unmanned aerial vehicles (UAVs) is first time applied for autonomous flight performance maximization. ... -
Katı Yakıtlı Roket ALP-01 Tasarımı, Modellemesi ve Simülasyonu
Bilgiç, Hasan Hüseyin; Çoban, Sezer; Yapıcı, Ahmet (Avrupa Bilim ve Teknoloji Dergisi, 2019)Bu çalışmada katı yakıtlı alçak irtifa roketi ALP-01’in CAD tasarımı yapılmıştır. 1500 metre irtifa için roket boyutları; seçilen motor için optimize edilmiştir. Burun konisi geometrisi olarak Parabolik tip tercih edilmiş ... -
MALE UAV selection in interval Type-2 fuzzy sets environment
Çoban, Sezer; Kiracı, Kasım; Akan, Ercan; Uzun, Metin (IOS Press BV, 2022)Unmanned Aerial Vehicles (UAVs) are increasingly used in the military field. Especially in recent years, UAVs have been a very effective instrument in gaining airspace superiority and military success. Many countries compete ... -
The modified residual property model for fracture mechanics
Saraçoğlu, Göksel (Kauno Technologijos Universitetas, 2023)In this paper, the application requirement of the Residual Property Model based on the decrescent exponential function is reduced to only one mechanical test datum. For this, by using Creager , Paris's elastic stress field ... -
MWCNTs doped GFRPs drilling: crosscheck among holes obtained by alternative manufacturing methods
Ceritbinmez, Ferhat; Özkan, Vildan; Saraçoğlu, Göksel; Yapıcı, Ahmet (Springer, 2021)In this study, the holes of glass fiber reinforced polymer (GFRP) and multi-walled carbon nanotubes (MWCNTs) doped GFRP composite materials were drilled using abrasive water jet (AWJ), CO2 laser cutting, orbital drilling, ... -
A Novel Biomimetic Wing Design and Optimizing Aerodynamic Performance
Uzun, Metin; Özdemir, Mustafa; Yıldırım, Çağrı Vakkas; Çoban, Sezer (Edit Publishing, 2022)In this article, numerical and experimental analyzes were made by adding winglet and endless blade to the tip of the airfoil to improve the wind turbine blade performance. Similarly, the change in performance was investigated ... -
Obtaining the Fracture Resistance Curve Using the General Displacement
Saraçoğlu, Göksel (Kauno Technologijos Universitetas, 2023)In this paper, the energy release energy corre-sponding to the unit crack propagation obtained from the displacement-controlled load-displacement plot is equalized to the elastic energy release rate, and the variation of ... -
Pasif Başkalaşımın Çıkış Varyansı Kısıtlı Kontrolcü İle Yönlendirilen İha Üzerinde Etkileri
Şal, Fırat (Avrupa Bilim ve Teknoloji Dergisi, 2020)Bu çalışma çıkış varyansı kısıtlı kontrolcü (OVC) ile yönlendirilen pasif başkalaşım yeteneğine sahip İHA’lar hakkında yeni sonuçlar sunmaktadır. Kanat ve kuyruk takımının uçak uzunlamasına ekseninde belli aralıklarda ...