Autonomous performance maximization of research-based hybrid unmanned aerial vehicle

Çoban, Sezer

doi:10.1108/aeat-08-2019-0171

Cited by 10 publications

(13 citation statements)

References 7 publications

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“…In Figure 1 photos of our UAV called as ISTE-UAV having morphing wing sweep angle are given (please visit the Appendix to see some physical data of this UAV). This platform is selected because it has been used in many UAV researches (Coban, 2020) by ISTE before.…”

Section: Effect Of Wing Sweep On Dynamic Modelsmentioning

confidence: 99%

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Simultaneous UAV having actively sweep angle morphing wing and flight control system design

Uzun

Oktay

2023

AEAT

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Purpose The purpose of this paper is to improve autonomous flight performance of an unmanned aerial vehicle (UAV) having actively sweep angle morphing wing using simultaneous UAV and flight control system (FCS) design. Design/methodology/approach An UAV is remanufactured in the ISTE Unmanned Aerial Vehicle Laboratory. Its wing sweep angle can vary actively during flight. FCS parameters and wing sweep angle are simultaneously designed to optimize autonomous flight performance index using a stochastic optimization method called as simultaneous perturbation stochastic approximation (SPSA). Results obtained are applied for flight simulations. Findings Using simultaneous design process of an UAV having actively sweep angle morphing wing and FCS design, autonomous flight performance index is maximized. Research limitations/implications Authorization of Directorate General of Civil Aviation in Turkey is crucial for real-time UAV flights. Practical implications Simultaneous UAV having actively sweep angle morphing wing and FCS design process is so beneficial for recovering UAV autonomous flight performance index. Social implications Simultaneous UAV having actively sweep angle morphing wing and FCS design process achieves confidence, high autonomous performance index and simple service demands of UAV operators. Originality/value Composing a novel approach to improve autonomous flight performance index (e.g. less settling and rise time, less overshoot meanwhile trajectory tracking) of an UAV and creating an original procedure carrying out simultaneous UAV having actively sweep angle morphing wing and FCS design idea.

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Section: Effect Of Wing Sweep On Dynamic Modelsmentioning

confidence: 99%

“…This kind of autopilot system has six PID controllers inside of autopilot block. By using these blocks, three reference inputs which are altitude, speed and heading angle can be tracked in general (please visit Oktay et al , 2016 and Coban, 2020 for more details).…”

Section: Applied Autopilot Systemmentioning

confidence: 99%

Simultaneous UAV having actively sweep angle morphing wing and flight control system design

Uzun

Oktay

2023

AEAT

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“…Ek olarak yüksek verimli ve esnek solar paneller kullanılarak İHA tasarımı ve üretimi konularında çalışmalar yapılmıştır. Ancak solar sistemler kullanımda olan İHA sistemlerinin ekstra panel, batarya ve elektronik devreler ile İHA ağırlığı üzerinde olumsuz etkiler oluşturmaktadır [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionunclassified

İnsansız Hava Araçlarının Uçuş Süresinin Termal Hava Akımları Kullanılarak Arttırımı

Konar¹,

Kekeç²

2021

European Journal of Science and Technology

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Özİnsansız hava araçları (İHA), uzaktan komuta ya da otonom biçimde uçuş yapabilen içerisinde bir operatör bulunmayan hava araçlarıdır. İHA'lar askeri ve sivil amaçlar için geniş bir kullanım alanına sahiptir. Kullanım alanlarının geniş olması ile son kullanıcılar için pek çok farklı konfigürasyonlar ile tasarımı ve üretimi gerçekleştirilmektedir. Farklı konfigürasyonlar ile tasarlanan İHA sistemleri beraberinde birçok problemlerle birlikte gelmektedir. Geniş kullanım alanları ile İHA'larda karşılaşılan en temel eksiklik ise uçuş süresi ve menzilinin yetersiz olmasıdır. Bu problemin çözümü üzerine itki sisteminin iyileştirilmesi, aerodinamik iyileştirmeler, batarya teknolojisinde yapılan yenilikler gibi pek çok çalışma yapılmıştır. Bu çalışmada İHA'ların uçuş süreleri ve menzillerinin iyileştirilmesi konu alınarak, termal hava akımlarından yararlanılmıştır. Termal hava akımları, güneş ışınlarının yeryüzünde bıraktığı etki ile oluşan yukarı yönlü yükselen hava akımları olarak tanımlanmaktadır. Yukarı yönlü hava akımlarının etkisi ile sportif hava araçları ve kuşlar herhangi bir itiş gücü ve enerji ihtiyacı olmadan havada saatlerce kalabilmekte ve uzun mesafeli olarak uçuş yapabilmektedir. Çalışma kapsamında termal hava akımları incelenmiş ve termal hava akımlarının otonom olarak tespit edilebilmesi için bir İHA sistemi tasarlanmış ve uçuşu gerçekleştirilmiştir. Uçuş denemeleri esnasında manuel ve stabilize uçuş modlarına göre termal hava akmlarının kullanımı ile yapılan uçuşta %61 daha uzun uçuş süresi tespit edilmiştir.

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“…In addition, the vortices formed by the separation of the surfaces create vibration, making it difficult to control land vehicles and also negatively affect the comfort. The design of aerodynamic and mechanical systems has been improved by taking all these data into consideration [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Electrically Driven VTOL Flying Car Designing and Aerodynamic Analysis

Uzun¹,

Çoban²

2021

European Journal of Science and Technology

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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 power and propulsion systems of the flying car, avionic systems, security systems, magnetic sensors, navigation landing and take-off methods, requirement verification methods, flight performance values were determined. Our design work for flying cars, which will soon start real-time flights, will guide the people and institutions that will design and produce in this field.A practical flying car should be able to operate safely and environmentally both in public spaces and in the air. For widespread adoption, it must be able to fly without a qualified pilot as we know it as a controller, and must have appropriate purchase and operating costs. Being a qualified car driver and having a pilot license, which certification processes are extremely difficult, is an important obstacle to the adoption and widespread process of the flying car concept. The certification processes of many different countries have been examined for the flying car we will design. Examination of these processes has been guiding in the creation of detailed data on many issues, and in this context, care has been taken to meet the requested competencies on a common ground. In order to overcome these procedures, a VTOL platform with high autonomy has been designed thanks to its subsystems as well as a stable flight dynamics.

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Autonomous performance maximization of research-based hybrid unmanned aerial vehicle

Cited by 10 publications

References 7 publications

Simultaneous UAV having actively sweep angle morphing wing and flight control system design

Simultaneous UAV having actively sweep angle morphing wing and flight control system design

İnsansız Hava Araçlarının Uçuş Süresinin Termal Hava Akımları Kullanılarak Arttırımı

Electrically Driven VTOL Flying Car Designing and Aerodynamic Analysis

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